Marine product mercury metal total amount accounting method and device based on marine fishery value chain

Abstract

The present disclosure relates to a marine product mercury metal total amount accounting method and device based on a marine fishery value chain, a mercury content database of marine products including multiple types with both fishing and breeding production methods is determined, each type of marine product has at least one label information with corresponding mercury content under each production method. Obtain marine product circulation data in a target time interval, calculate the total mercury production according to the fishing amount, breeding amount and corresponding marine product mercury content database of each country corresponding to each type of marine product, calculate the total mercury import of imported marine products according to the import amount of each country corresponding to each type of marine product and the marine product mercury content database. According to the total mercury production, the total mercury import and the total mercury export of each country corresponding to each type of marine product, the total mercury metal amount of the marine products consumed by each country is calculated. The present disclosure considers the difference of mercury metal concentration of marine products in different sea areas, so as to reduce the error of the total mercury metal accounting result.

Description

Technical Field

[0001] The present disclosure relates to the field of mercury pollution monitoring, and in particular to a method and device for calculating the total amount of mercury metal in seafood based on the marine fishery value chain. Background Art

[0002] Currently, seafood consumption is the primary source of human mercury exposure, particularly methylmercury. However, current limited studies on seafood-related mercury exposure primarily calculate mercury concentrations based on national seafood consumption (the end of the value chain) and regardless of the region. These studies fail to consider the potential impacts of upstream processes in the seafood value chain, including production and distribution. This leads to significant errors in calculating total mercury levels at both the production and consumption ends. Summary of the Invention

[0003] In view of this, the present disclosure proposes a method and device for calculating the total amount of mercury metal in seafood based on the marine fishery value chain, aiming to accurately calculate the total amount of mercury metal in the production, consumption and consumption end of seafood.

[0004] According to a first aspect of the present disclosure, a method for calculating the total amount of mercury metal in seafood based on the marine fishery value chain is provided, the method comprising:

[0005] A database of mercury content in multiple types of seafood produced by both capture and aquaculture methods is established. Each type of seafood has at least one piece of label information under each production method, and each piece of label information has a corresponding mercury content. The label information includes a substance classification label and a location classification label. The location classification label includes a country label and a sea area label.

[0006] Obtaining seafood circulation data for a target time period, the seafood circulation data including catch, aquaculture, import, export, and consumption of each type of seafood for multiple countries;

[0007] Based on the catch and aquaculture volume of each type of seafood in each country and the seafood mercury content database, calculate the total amount of mercury produced at the production end of each country and the average mercury content of each country;

[0008] Calculate the total amount of imported mercury from seafood products for each country based on the import and export volumes of each type of seafood for each country and the average mercury content of production in the corresponding trading countries;

[0009] Based on the total amount of mercury produced and imported for each type of seafood in each country, as well as the total amount of circulation and consumption of each seafood, the total amount of mercury metal in seafood consumed in each country is calculated.

[0010] In a possible implementation, the determination includes a database of mercury content of multiple types of seafood produced by both capture and aquaculture methods, including:

[0011] Obtain multiple sample products corresponding to multiple types of seafood produced under both capture and aquaculture production methods, as well as mercury concentration information and attribute information for each sample product, wherein the attribute information includes sample weight, sampling country, sampling sea area, international standard aquatic flora and fauna category, and trophic level;

[0012] Data synthesis is performed based on multiple sample products of seafood obtained under each production method, the mercury concentration information and attribute information of each sample product, and multiple sets of label information corresponding to each production method of each type of seafood, as well as the mercury content corresponding to each set of label information, are obtained. The label information includes material classification labels determined according to the categories and trophic levels of the International Aquatic Statistical Standards, as well as location classification labels determined according to the sampling country and sampling sea area.

[0013] In one possible implementation, the method comprises synthesizing data based on obtaining multiple sample products of seafood under each production method, the mercury concentration information and attribute information of each sample product, and obtaining multiple sets of label information corresponding to each production method of each type of seafood, as well as the mercury content corresponding to each set of label information, including:

[0014] For multiple sample products of seafood obtained under each production method, multiple sets of different label information are determined according to attribute information of the corresponding multiple sample products;

[0015] The sample weight and mercury concentration information of a plurality of sample products corresponding to each set of label information are obtained, and the mercury concentration per unit weight of the seafood is calculated as the corresponding mercury content according to the sample weight and mercury concentration information of the plurality of sample products.

[0016] In a possible implementation, the calculation of the total mercury production at the production end of each country based on the catch and aquaculture volume of each type of seafood in each country and the seafood mercury content database includes:

[0017] For each type of seafood, a matrix template is constructed based on two dimensions: a plurality of corresponding material classification labels and a plurality of position classification labels, wherein each element in the matrix template corresponds to a set of label information consisting of a material classification label and a position classification label;

[0018] Searching the seafood mercury content database for the mercury content corresponding to each set of label information under the seafood fishing method and the seafood farming method, respectively, and filling in the matrix template to obtain a fishing mercury content matrix and a farming mercury content matrix;

[0019] Extracting the sub-catch amount and sub-aquaculture amount corresponding to each set of label information from the catch amount and aquaculture amount of each country, and filling them into the matrix template to obtain the catch amount matrix and aquaculture amount matrix respectively;

[0020] For each country, the total amount of captured mercury is calculated based on the captured mercury content matrix and the capture quantity matrix, and the total amount of aquaculture mercury is calculated based on the aquaculture mercury content matrix and the aquaculture quantity matrix;

[0021] The production mercury content was calculated based on the total amount of captured mercury and the total amount of aquaculture mercury corresponding to each country.

[0022] In a possible implementation, the calculation of the total amount of imported mercury in seafood by each country based on the import and export volume of each type of seafood by each country and the average mercury content of the production in the corresponding trading countries includes:

[0023] Determining an import volume matrix based on the import volume of each type of seafood from each country through different exporting countries, wherein the import volume from different exporting countries is determined based on the export volume of the corresponding country;

[0024] Determine a matrix of imported mercury concentrations based on the mercury concentrations of each seafood type from each of the mentioned countries corresponding to the different exporting countries;

[0025] The product of the import quantity matrix and the imported mercury concentration matrix corresponding to each country is calculated to obtain the corresponding total amount of imported mercury.

[0026] In a possible implementation, the total amount of mercury metal in seafood consumed in each country is calculated based on the total amount of mercury produced and imported for each type of seafood in each country, as well as the total amount of circulation and consumption of each seafood, including:

[0027] For each country, calculate the mercury input for each type of seafood based on the total mercury produced and imported for each type of seafood;

[0028] Calculate the consumption ratio of each type of seafood based on the total input and consumption of each type of seafood;

[0029] Based on the mercury input stream and consumption ratio of each type of seafood, the total amount of mercury metal in seafood consumed in each country was calculated.

[0030] In a possible implementation, the method further includes:

[0031] Calculate the global average mercury production concentration based on the catch and aquaculture output of each seafood type and the total mercury production for each country;

[0032] The global average imported mercury concentration was calculated based on the import volume of each seafood type for each country and the total amount of imported mercury.

[0033] According to a second aspect of the present disclosure, a device for calculating the total amount of mercury metal in seafood based on the marine fishery value chain is provided, the device comprising:

[0034] a database determination module, configured to determine a database of mercury content of multiple types of seafood produced by both capture and aquaculture methods, wherein each type of seafood has at least one piece of label information under each production method, each piece of label information having a corresponding mercury content, the label information including a substance classification label and a location classification label, the location classification label including a country label and a sea area label;

[0035] a circulation data determination module, configured to obtain seafood circulation data for a target time interval, wherein the seafood circulation data includes catch, aquaculture, import, export, and consumption of each type of seafood for a plurality of countries;

[0036] a total mercury production determination module, configured to calculate the total mercury production at the production end of each country and the average mercury production content of each country based on the catch and aquaculture volume of each type of seafood in each country and the seafood mercury content database;

[0037] a module for determining the total amount of imported mercury, configured to calculate the total amount of imported mercury of seafood imported by each country based on the import and export volume of each type of seafood of each country and the average mercury content of production in the corresponding trading countries;

[0038] The total mercury metal amount determination module is used to calculate the total mercury metal amount of seafood consumed in each country based on the total mercury production and import of each type of seafood in each country, as well as the total circulation and consumption of each seafood.

[0039] In a possible implementation, the database determination module is further configured to:

[0040] Obtain multiple sample products corresponding to multiple types of seafood produced under both capture and aquaculture production methods, as well as mercury concentration information and attribute information for each sample product, wherein the attribute information includes sample weight, sampling country, sampling sea area, international standard aquatic flora and fauna category, and trophic level;

[0041] Data synthesis is performed based on multiple sample products of seafood obtained under each production method, the mercury concentration information and attribute information of each sample product, and multiple sets of label information corresponding to each production method of each type of seafood, as well as the mercury content corresponding to each set of label information, are obtained. The label information includes material classification labels determined according to the categories and trophic levels of the International Aquatic Statistical Standards, as well as location classification labels determined according to the sampling country and sampling sea area.

[0042] In a possible implementation, the database determination module is further configured to:

[0043] For multiple sample products of seafood obtained under each production method, multiple sets of different label information are determined according to attribute information of the corresponding multiple sample products;

[0044] The sample weight and mercury concentration information of a plurality of sample products corresponding to each set of label information are obtained, and the mercury concentration per unit weight of the seafood is calculated as the corresponding mercury content according to the sample weight and mercury concentration information of the plurality of sample products.

[0045] In a possible implementation, the module for determining the total amount of mercury produced is further configured to:

[0046] For each type of seafood, a matrix template is constructed based on two dimensions: a plurality of corresponding material classification labels and a plurality of position classification labels, wherein each element in the matrix template corresponds to a set of label information consisting of a material classification label and a position classification label;

[0047] Searching the seafood mercury content database for the mercury content corresponding to each set of label information under the seafood fishing method and the seafood farming method, respectively, and filling in the matrix template to obtain a fishing mercury content matrix and a farming mercury content matrix;

[0048] Extracting the sub-catch amount and sub-aquaculture amount corresponding to each set of label information from the catch amount and aquaculture amount of each country, and filling them into the matrix template to obtain the catch amount matrix and aquaculture amount matrix respectively;

[0049] For each country, the total amount of captured mercury is calculated based on the captured mercury content matrix and the capture quantity matrix, and the total amount of aquaculture mercury is calculated based on the aquaculture mercury content matrix and the aquaculture quantity matrix;

[0050] The production mercury content was calculated based on the total amount of captured mercury and the total amount of aquaculture mercury corresponding to each country.

[0051] In a possible implementation, the module for determining the total amount of imported mercury is further configured to:

[0052] Determining an import volume matrix based on the import volume of each type of seafood from each country through different exporting countries, wherein the import volume from different exporting countries is determined based on the export volume of the corresponding country;

[0053] Determine a matrix of imported mercury concentrations based on the mercury concentrations of each seafood type from each of the mentioned countries corresponding to the different exporting countries;

[0054] The product of the import quantity matrix and the imported mercury concentration matrix corresponding to each country is calculated to obtain the corresponding total amount of imported mercury.

[0055] In a possible implementation, the total amount of mercury metal determining module is further configured to:

[0056] For each country, calculate the mercury input for each type of seafood based on the total mercury produced and imported for each type of seafood;

[0057] Calculate the consumption ratio of each type of seafood based on the total input and consumption of each type of seafood;

[0058] Based on the mercury input stream and consumption ratio of each type of seafood, the total amount of mercury metal in seafood consumed in each country was calculated.

[0059] In a possible implementation, the apparatus further includes:

[0060] A module for calculating mercury production concentrations, used to calculate the global average mercury production concentration based on the catch and aquaculture output of each type of seafood and the total mercury production of each country;

[0061] The imported mercury concentration calculation module is used to calculate the global average imported mercury concentration based on the import volume of each type of seafood of each country and the total amount of imported mercury.

[0062] According to a third aspect of the present disclosure, an electronic device is provided, comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to implement the above method when executing the instructions stored in the memory.

[0063] According to a fourth aspect of the present disclosure, a non-volatile computer-readable storage medium is provided, on which computer program instructions are stored, wherein the computer program instructions implement the above method when executed by a processor.

[0064] According to a fifth aspect of the present disclosure, a computer program product is provided, comprising a computer-readable code, or a non-volatile computer-readable storage medium carrying the computer-readable code. When the computer-readable code runs in a processor of an electronic device, the processor in the electronic device executes the above method.

[0065] In an embodiment of the present disclosure, a database of mercury content is determined for multiple types of seafood produced using both fishing and aquaculture methods. Each type of seafood has at least one label with corresponding mercury content under each production method. Seafood circulation data for a target time period is obtained to calculate the total amount of mercury produced and the average mercury concentration based on the catch and aquaculture volume for each type of seafood in each country and the seafood mercury content database. The total amount of imported mercury for imported seafood is calculated based on the import volume of each type of seafood in each country and the average mercury concentration in the circulation countries. Based on the total amount of mercury produced and imported for each type of seafood in each country, as well as the total input and consumption of each seafood, the total amount of mercury metal consumed in each country is calculated. This disclosure reduces the error in the total amount of mercury metal calculation results by taking into account the mercury metal concentration of seafood in different sea areas.

[0066] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

[0068] Figure 1 A flowchart showing a method for calculating the total amount of mercury metal in seafood based on the marine fishery value chain according to an embodiment of the present disclosure is shown;

[0069] Figure 2 A schematic diagram showing a device for calculating the total amount of mercury metal in seafood based on the marine fishery value chain according to an embodiment of the present disclosure is shown;

[0070] Figure 3 A schematic diagram illustrating an electronic device according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0071] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0072] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0073] In addition, numerous specific details are provided in the following detailed description to better illustrate the present disclosure. Those skilled in the art will appreciate that the present disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main points of the present disclosure.

[0074] The method for calculating the total amount of mercury in seafood based on the marine fishery value chain according to the disclosed embodiments can be executed by an electronic device, such as a terminal device or server. The terminal device can be any fixed or mobile terminal, such as a user equipment (UE), mobile device, user terminal, terminal, cellular phone, cordless phone, personal digital assistant (PDA), handheld device, computing device, vehicle-mounted device, wearable device, etc. The server can be a single server or a server cluster consisting of multiple servers. Any electronic device can implement the method for calculating the total amount of mercury in seafood based on the marine fishery value chain according to the disclosed embodiments by invoking computer-readable instructions stored in a memory via a processor.

[0075] Figure 1 A flow chart showing a method for calculating the total amount of mercury metal in seafood based on the marine fishery value chain according to an embodiment of the present disclosure is shown. Figure 1 As shown, the method for calculating the total amount of mercury metal in seafood based on the marine fishery value chain according to the embodiment of the present disclosure may include the following steps S10-S50.

[0076] Step S10: Determine a database of mercury content of multiple types of seafood produced by both fishing and farming methods.

[0077] In one possible implementation, an electronic device predetermines a seafood mercury content database that includes the mercury content of multiple types of seafood obtained by fishing and aquaculture. Each type of seafood has at least one label information under each production method, as well as the mercury content corresponding to each label information. The label information also includes two types of labels: a material classification label and a location classification label. The location classification label includes two types of labels: a country label and a sea area label. Optionally, in the embodiment of the present disclosure, the material classification label included in the label information can be determined based on the International Standard Statistical Classification of Aquatic Animals and Plants (ISSCAAP) and trophic level (TL) of seafood, and the location classification label can be determined based on the sampling sea area and the nearest sampling country.

[0078] For example, for the seafood product "sea bass," the seafood mercury content database includes seafood obtained from two production methods: "caught sea bass" and "farmed sea bass." This essentially categorizes a single seafood product into two different types based on different production methods. Each of these seafood products, "caught sea bass" and "farmed sea bass," has multiple pieces of label information and corresponding mercury content. For example, "caught sea bass" may correspond to label information 1, label information 2, and label information 3, as well as mercury content 1 corresponding to label information 1, mercury content 2 corresponding to label information 2, and mercury content 3 corresponding to label information 3. "Farmed sea bass" may correspond to label information 4 and label information 5, as well as mercury content 4 corresponding to label information 4 and mercury content 5 corresponding to label information 5. Any label in label information 1, label information 2, and label information 3 may overlap with any label in label information 4 or label information 5, and any mercury content in mercury content 1, mercury content 2, and mercury content 3 may overlap with any mercury content in mercury content 4 or mercury content 5.

[0079] Furthermore, the seafood mercury content database in the embodiments of the present disclosure can be predetermined or determined in real time when it is necessary to calculate mercury concentrations and total amounts for different countries. The process by which the electronic device determines the seafood mercury content database can include two steps: data collection and data synthesis. During the data collection process, the electronic device obtains multiple sample products corresponding to multiple types of seafood under both fishing and aquaculture production methods, as well as mercury concentration information and attribute information for each sample product. The attribute information includes sample weight, sampling country, sampling sea area, International Standard Aquatic Statistical Classification, and trophic level. During the data synthesis process, the electronic device synthesizes data based on the multiple sample products obtained under each production method, the mercury concentration information, and attribute information for each sample product, to obtain multiple sets of label information corresponding to each production method for each type of seafood, as well as the mercury content corresponding to each set of label information. The label information includes a material classification label determined according to the International Standard Aquatic Statistical Classification and trophic level, and a location classification label determined according to the sampling country and sampling sea area.

[0080] Optionally, the data collection process in the embodiment of the present disclosure can be achieved by identifying review paper data, etc. Among them, the multiple sample products corresponding to the multiple types of seafood collected by the electronic device can be the whole or local tissues (such as muscle tissue) of seafood, and are collected within a preset time interval from a marine environment that is not obviously polluted or a market with a marked source. The attribute information of each seafood may include sample weight, sampling country, sampling sea area, international aquatic plant and animal statistical standard category and trophic level, and may further include length, sample size, etc. The preset time interval can be any time period, such as data within 2019, or data within 2019 and the adjacent years before 2019.

[0081] Furthermore, the data synthesis process in the embodiment of the present disclosure can determine multiple sets of different label information for multiple sample products obtained under each production method based on the attribute information of the corresponding multiple sample products. Then, the sample weight and mercury concentration information of the multiple sample products corresponding to each set of label information are obtained, and the mercury concentration per unit weight is calculated as the corresponding mercury content based on the sample weight and mercury concentration information of the multiple sample products. That is, the electronic device can obtain multiple sample products of target seafood under a production method, determine the location classification label based on the sampling country and sampling sea area included in the attribute information, and determine the material classification label based on the international standard category and trophic level for aquatic flora and fauna statistics, thereby obtaining multiple sets of different label information. Then, based on the sample weight and mercury concentration information of the multiple sample products corresponding to each set of label information, the mercury concentration per unit weight is calculated as the corresponding mercury content. The mercury concentration may include at least one of the total mercury concentration (THg) and the methylmercury concentration (MeHg). The two mercury concentrations can be converted to each other. The conversion process can be performed according to the trophic level through a linear conversion formula. The trophic level can be a plurality of pre-divided levels. For example, the trophic level can be divided into four levels, 1-2 is primary, 2-3 is low, 3-4 is medium, 4-5 is high, and the linear conversion formula can be MeHg High =0.930×THg High , MeHg Medium =0.965×THg Medium , MeHg Low =0.485×THg Low and MeHg Primary =0.200×THg Primary .

[0082] Through the above data collection and data synthesis process, the electronic device of the embodiment of the present disclosure can obtain a database of mercury content of multiple types of seafood produced by both fishing and farming methods, so as to further calculate the total amount of mercury metal based on the seafood mercury content database.

[0083] Step S20: Acquire seafood circulation data in the target time interval.

[0084] In one possible implementation, the electronic device also obtains seafood circulation data within a preset target time interval. The target time interval can be pre-set, for example, within one year. The seafood circulation data may include the catch, aquaculture, import, export, and consumption of each type of seafood for multiple countries. The import volume also includes sub-import volumes corresponding to each import source country, such as sub-import volume 1 for imports from country A, sub-import volume 2 for imports from country B, and so on. Furthermore, the seafood circulation data may also include the export volume of each type of seafood for multiple countries. Optionally, the seafood circulation data may be obtained from the Food and Agriculture Organization of the United Nations' seafood database.

[0085] Step S30: Calculate the total amount of mercury produced by the production end of each country based on the catch and breeding amount of each type of seafood in each country and the seafood mercury content database.

[0086] In one possible implementation, after determining a database of seafood mercury content and seafood circulation data, the electronic device calculates the total mercury production at the production end of each country based on the catch and aquaculture yields for each type of seafood in each country in the seafood circulation data and the seafood mercury content database. Specifically, for each type of seafood, a matrix template is constructed based on two dimensions: multiple material classification labels and multiple location classification labels. Each element in the matrix template corresponds to a set of label information consisting of a material classification label and a location classification label. The seafood mercury content database is searched for the mercury content corresponding to each set of label information for each type of seafood harvesting method and aquaculture method, and the matrix templates are populated to generate a catch mercury content matrix and aquaculture mercury content matrix. Within each country's catch and aquaculture yields, the sub-catch yields and sub-aquaculture yields corresponding to each set of label information are extracted and populated into the matrix templates to generate a catch yield matrix and aquaculture yield matrix. For each country, the catch mercury content is calculated based on the catch mercury content matrix and the catch yield matrix, and the aquaculture mercury content is calculated based on the aquaculture mercury content matrix and the aquaculture yield matrix. The production mercury content is then calculated based on the corresponding fishing mercury content and aquaculture mercury content in each country.

[0087] That is, the embodiment of the present disclosure can construct a two-dimensional matrix template based on multiple material classification labels and multiple position classification labels corresponding to each type of seafood. For example, the rows of the matrix represent the position classification labels, and the columns of the matrix represent the material classification labels. Then, the mercury content corresponding to each set of label information under the seafood fishing method and the breeding method is searched in the seafood mercury content database, and the matrix template is filled in to obtain the fishing mercury content matrix. and aquaculture mercury content matrix Where hf is the mercury content of seafood obtained by fishing, hm is the mercury content of seafood obtained by farming, s is the number of material classification labels, and p is the number of location classification labels. For example, hf 1p Mercury content of seafood obtained by fishing method in accordance with substance classification label 1, location classification label p, hm S1 To meet the requirements of substance classification label s, the mercury content of seafood obtained by aquaculture with location classification label 1 is calculated. Furthermore, the sub-catch and sub-aquaculture quantities of seafood corresponding to each set of label information are extracted from the catch and aquaculture quantities of each country, and the matrix templates are filled in to obtain the catch matrix. and stock matrix Among them, qf is the sub-catch of seafood obtained by fishing method under the corresponding label information, qm is the sub-catch of seafood obtained by farming method under the corresponding label information, s is the number of material classification labels, and p is the number of position classification labels. For example, each country has its own fishing quantity matrix and its own farming quantity matrix, qf 1p The sub-catch volume of seafood obtained by the fishing method corresponding to the country's material classification label 1 and position classification label p, qm s1 The sub-catch volume of seafood obtained by the aquaculture method corresponding to the country's substance classification label s and location classification label 1.

[0088] Furthermore, after determining the fishing mercury content matrix, aquaculture mercury content matrix, fishing quantity matrix, and aquaculture quantity matrix corresponding to each country, the embodiment of the present disclosure can calculate the total amount of fishing mercury corresponding to the country by matrix multiplication. and the total amount of mercury in aquaculture f is the mercury concentration in each seafood category during capture, and m is the mercury concentration in each seafood category during aquaculture. After obtaining the total mercury concentrations of captured and aquaculture mercury for each country, the total mercury production can be calculated by summing them. Using the total catch and total mercury content of each country's seafood, we can determine the average mercury content of each seafood category during capture, including both the average mercury content of each seafood category and the average mercury content of all seafood. Using the total catch and total mercury content of each country's aquaculture, we can determine the average mercury content of each seafood category during aquaculture.

[0089] Step S40: Calculate the total amount of imported mercury of seafood imported by each country based on the import and export volume of each type of seafood for each country and the average mercury content of the production of the corresponding trading countries.

[0090] In one possible implementation, after determining the average mercury content of each type of seafood exported by the corresponding trading country and seafood trade circulation data, the electronic device further calculates the total amount of imported mercury at each country's trading end based on the import volume of each type of seafood for each country in the seafood trade circulation data and the average mercury content of each type of seafood exported by the corresponding trading country. Specifically, this calculation process can include determining an import volume matrix based on the import volume of each type of seafood for each country through different exporting countries, and determining an imported mercury concentration matrix based on the mercury concentration of each type of seafood for each country through different exporting countries. Finally, the product of the import volume matrix and the imported mercury concentration matrix for each country is calculated to obtain the corresponding total amount of imported mercury.

[0091] That is, the embodiment of the present disclosure can determine the import volume matrix based on the import volume of each type of seafood of each country through different exporting countries. Determine the imported mercury concentration matrix based on the mercury concentration of each type of seafood from different exporting countries corresponding to each country's imported products Each country has its own import volume matrix and import mercury concentration matrix. The element he of the import mercury concentration matrix is ​​the mercury concentration of each type of seafood exported by seafood exporting countries to the country, including the mercury concentration of each exporting country's captured seafood, farmed seafood, and imported seafood from upstream exporting countries. The element qi of the import volume matrix is ​​the seafood import volume of each type of seafood imported by the country from each exporting country, s is the number of seafood categories, and c is the number of exporting countries. For example, qi 1c It represents the import volume of seafood with substance classification label 1 from the exporting country with location classification label c. s1 The mercury concentration of seafood with substance classification label s exported by the exporting country with location classification label 1 to this country is calculated by multiplying the import quantity matrix and the imported mercury concentration matrix corresponding to each country to obtain the corresponding total amount of imported mercury. i is the imported mercury concentration of each type of seafood.

[0092] Furthermore, since the mercury concentration of each type of seafood exported by each seafood exporting country may include the mercury concentration of each exporting country's captured seafood, farmed seafood, and imported seafood from upstream exporting countries, the embodiment of the present disclosure can be calculated by the formula The mercury content of each type of seafood exported by seafood exporting countries is calculated. Where n represents the nth upstream exporting country, β cap is the weight of the country's seafood catch in the total seafood input (i.e. the sum of catch, aquaculture and import), β mari is the weight of seafood farming volume, β import_nis the import weight from each upstream exporting country.

[0093] Optionally, when the seafood circulation data may include the export volume of each type of seafood corresponding to multiple countries, the embodiment of the present disclosure may also calculate the total amount of mercury exported by each country. The calculation method of the total amount of mercury exported may be: where qe is the seafood export volume of each seafood type exported to different countries, he is the mercury concentration of each seafood type exported, s is the number of seafood types, and c is the number of countries targeted for export.

[0094] Step S50: Calculate the total amount of mercury metal in seafood consumed in each country based on the total amount of mercury produced and imported for each type of seafood in each country, as well as the total amount of input and consumption of each seafood.

[0095] In one possible implementation, after calculating the total mercury production and imports for each seafood category in each country during a preset target time period, the total mercury metal content of seafood consumption is calculated based on the total mercury production and imports, as well as the total input and consumption of each seafood category. Specifically, for each country, the electronic device can calculate the mercury input of each seafood category based on the total mercury production and imports. Based on the total input and consumption of each seafood category, the electronic device can then calculate the proportion of each seafood category's consumption to the total input. Finally, based on the proportion of each seafood category's consumption to the total mercury input, the total mercury metal content of seafood consumption in each country is calculated.

[0096] Optionally, the electronic device in the embodiment of the present disclosure can use the formula Calculate the total amount of mercury metal in seafood consumed by each country, where a is the total amount of mercury consumed for each type of seafood, f is the total amount of mercury captured for each type of seafood, and m is the total amount of mercury farmed for each type of seafood. The total amount of mercury captured and farmed constitutes the total amount of mercury produced. i is the total amount of mercury imported for each type of seafood. The consumption ratio of each type of seafood can be calculated by calculating the ratio of consumption to total imports. Alternatively, the total imports are the sum of each country's domestically produced and imported seafood data for each type. For example, if seafood circulation data includes catch, aquaculture, and import volumes, the total circulation volume can be calculated by summing these catch, aquaculture, and import volumes.

[0097] Furthermore, the embodiment of the present disclosure can also calculate the global average production mercury concentration based on the catch and aquaculture volume of each type of seafood in each country, as well as the total amount of mercury produced, and calculate the global average import mercury concentration based on the import volume of each type of seafood in each country, as well as the total amount of imported mercury. Alternatively, when the seafood circulation data also includes the export volume of each type of seafood, the global average export mercury concentration can also be calculated based on the export volume of each type of seafood in each country and the total amount of exported mercury. At the same time, the global average capture mercury concentration can also be calculated based on the catch volume of each type of seafood and the total amount of captured mercury in the total production mercury, and the global average aquaculture mercury concentration can be calculated based on the aquaculture volume of each type of seafood and the total amount of aquaculture mercury in the total production mercury. The global average consumption mercury concentration can be calculated based on the consumption volume of each type of seafood in each country and the total amount of consumed mercury. That is, the embodiment of the present disclosure can be calculated by the formula HgCont n =Hg n / Q n Calculate the global average mercury concentration at each stage of the seafood value chain, namely, fishing, farming, import, export, and consumption, where Hg n is the total amount of mercury in one link of the circulation process, Q n The total amount of seafood.

[0098] Currently, seafood consumption is the primary source of human mercury exposure, particularly methylmercury. However, the limited seafood-related mercury exposure research currently available primarily calculates seafood consumption (at the end of the value chain) across countries and mercury concentrations in seafood regardless of region, failing to consider the potential impacts of upstream processes in the seafood value chain, namely production and distribution. First, regarding seafood production, previous calculations of total mercury at the production end of the market have failed to account for variations in mercury concentrations across different regions. However, mercury concentrations in the same type of seafood can vary by as much as tenfold across different regions. Failure to account for this variation would undoubtedly lead to significant errors in total mercury calculations at the production end of the market. These errors at the production end can be transmitted through distribution and affect the accuracy of mercury consumption calculations. Furthermore, regarding the distribution of seafood, no research has yet analyzed the impact of international seafood trade on mercury exposure at the consumer end. However, the most widely traded seafood is high-trophic-level seafood. Due to mercury bioaccumulation, higher trophic-level seafood has higher mercury concentrations. Therefore, seafood trade can redistribute the total mercury content of seafood production across countries worldwide. The impact of this process on mercury exposure at the consumer end remains unclear. In summary, existing accounting systems fail to account for the differences in mercury concentrations in seafood from different waters and the impact of global trade on the redistribution of total mercury content in seafood, leading to significant errors in accounting for total mercury content at both the production and consumer ends.

[0099] Based on the above technical features, the embodiment of the present disclosure takes into account the production methods and the differences in mercury concentrations of seafood in different sea areas from the production end, and takes into account the distribution of the total amount of mercury on the production end by international seafood circulation, and calculates the total amount of mercury in each link in the seafood circulation process. The total amount of mercury metal in consumer seafood in each country is further determined based on the total amount of mercury in each link. The accuracy of the mercury exposure estimation results related to seafood consumption in various countries has been significantly improved. Optionally, the total amount and concentration of mercury on the consumer end are updated based on the annual seafood production and circulation situation of the Food and Agriculture Organization of the United Nations, thereby achieving traceability of the production areas and importing countries of high-mercury seafood, and providing targeted, science-based policy guidance for effectively protecting the health of the people and reducing the health risks of mercury exposure caused by seafood consumption.

[0100] Figure 2 A schematic diagram of a device for calculating the total amount of mercury metal in seafood based on the marine fishery value chain according to an embodiment of the present disclosure is shown. Figure 2 As shown, the device for calculating the total amount of mercury metal in seafood based on the marine fishery value chain according to the embodiment of the present disclosure may include:

[0101] A database determination module 30 is configured to determine a database of mercury content of multiple types of seafood produced by both capture and aquaculture methods, wherein each type of seafood has at least one piece of label information under each production method, each piece of label information having a corresponding mercury content, the label information including a substance classification label and a location classification label, the location classification label including a country label and a sea area label;

[0102] a circulation data determination module 31 for obtaining seafood circulation data for a target time interval, wherein the seafood circulation data includes the catch, aquaculture, import, export, and consumption of each type of seafood for a plurality of countries;

[0103] a total mercury production determination module 32, configured to calculate the total mercury production at the production end of each country and the average mercury production content of each country based on the catch and aquaculture volume of each type of seafood in each country and the seafood mercury content database;

[0104] a total mercury import determination module 33, configured to calculate the total mercury import of seafood products of each country according to the import and export volume of each type of seafood of each country and the average mercury content of the production of the corresponding trading countries;

[0105] The total mercury metal amount determination module 34 is configured to calculate the total mercury metal amount of seafood consumed in each country based on the total mercury production and import of each type of seafood in each country, as well as the total circulation and consumption of each seafood.

[0106] In a possible implementation, the database determination module 30 is further configured to:

[0107] Obtain multiple sample products corresponding to multiple types of seafood produced under both capture and aquaculture production methods, as well as mercury concentration information and attribute information for each sample product, wherein the attribute information includes sample weight, sampling country, sampling sea area, international standard aquatic flora and fauna category, and trophic level;

[0108] Data synthesis is performed based on multiple sample products of seafood obtained under each production method, the mercury concentration information and attribute information of each sample product, and multiple sets of label information corresponding to each production method of each type of seafood, as well as the mercury content corresponding to each set of label information, are obtained. The label information includes material classification labels determined according to the categories and trophic levels of the International Aquatic Statistical Standards, as well as location classification labels determined according to the sampling country and sampling sea area.

[0109] In a possible implementation, the database determination module 30 is further configured to:

[0110] For multiple sample products of seafood obtained under each production method, multiple sets of different label information are determined according to attribute information of the corresponding multiple sample products;

[0111] The sample weight and mercury concentration information of a plurality of sample products corresponding to each set of label information are obtained, and the mercury concentration per unit weight of the seafood is calculated as the corresponding mercury content according to the sample weight and mercury concentration information of the plurality of sample products.

[0112] In a possible implementation, the total mercury production determination module 32 is further configured to:

[0113] For each type of seafood, a matrix template is constructed based on two dimensions: a plurality of corresponding material classification labels and a plurality of position classification labels, wherein each element in the matrix template corresponds to a set of label information consisting of a material classification label and a position classification label;

[0114] Searching the seafood mercury content database for the mercury content corresponding to each set of label information under the seafood fishing method and the seafood farming method, respectively, and filling in the matrix template to obtain a fishing mercury content matrix and a farming mercury content matrix;

[0115] Extracting the sub-catch amount and sub-aquaculture amount corresponding to each set of label information from the catch amount and aquaculture amount of each country, and filling them into the matrix template to obtain the catch amount matrix and aquaculture amount matrix respectively;

[0116] For each country, the total amount of captured mercury is calculated based on the captured mercury content matrix and the capture quantity matrix, and the total amount of aquaculture mercury is calculated based on the aquaculture mercury content matrix and the aquaculture quantity matrix;

[0117] The production mercury content was calculated based on the total amount of captured mercury and the total amount of aquaculture mercury corresponding to each country.

[0118] In a possible implementation, the total amount of imported mercury determining module 33 is further configured to:

[0119] Determining an import volume matrix based on the import volume of each type of seafood from each country through different exporting countries, wherein the import volume from different exporting countries is determined based on the export volume of the corresponding country;

[0120] Determine a matrix of imported mercury concentrations based on the mercury concentrations of each seafood type from each of the mentioned countries corresponding to the different exporting countries;

[0121] The product of the import quantity matrix and the imported mercury concentration matrix corresponding to each country is calculated to obtain the corresponding total amount of imported mercury.

[0122] In a possible implementation, the total amount of mercury metal determining module 34 is further configured to:

[0123] For each country, calculate the mercury input for each type of seafood based on the total mercury produced and imported for each type of seafood;

[0124] Calculate the consumption ratio of each type of seafood based on the total input and consumption of each type of seafood;

[0125] Based on the mercury input stream and consumption ratio of each type of seafood, the total amount of mercury metal in seafood consumed in each country was calculated.

[0126] In a possible implementation, the apparatus further includes:

[0127] A module for calculating mercury production concentrations, used to calculate the global average mercury production concentration based on the catch and aquaculture output of each type of seafood and the total mercury production of each country;

[0128] The imported mercury concentration calculation module is used to calculate the global average imported mercury concentration based on the import volume of each type of seafood of each country and the total amount of imported mercury.

[0129] In some embodiments, the functions or modules included in the device provided by the embodiments of the present disclosure can be used to execute the method described in the above method embodiments. The specific implementation can refer to the description of the above method embodiments. For the sake of brevity, it will not be repeated here.

[0130] The present disclosure also provides a computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions implement the above method when executed by a processor. The computer-readable storage medium may be a volatile or non-volatile computer-readable storage medium.

[0131] An embodiment of the present disclosure further proposes an electronic device, comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to implement the above method when executing the instructions stored in the memory.

[0132] An embodiment of the present disclosure also provides a computer program product, including computer-readable code, or a non-volatile computer-readable storage medium carrying computer-readable code. When the computer-readable code runs in a processor of an electronic device, the processor in the electronic device executes the above method.

[0133] Figure 3 1 shows a schematic diagram of an electronic device 1900 according to an embodiment of the present disclosure. For example, the electronic device 1900 can be provided as a server or a terminal device. Figure 3 The electronic device 1900 includes a processing component 1922, which further includes one or more processors, and a memory resource represented by a memory 1932 for storing instructions executable by the processing component 1922, such as an application. The application stored in the memory 1932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute the instructions to perform the above-described method.

[0134] The electronic device 1900 may further include a power supply component 1926 configured to perform power management of the electronic device 1900, a wired or wireless network interface 1950 configured to connect the electronic device 1900 to a network, and an input / output interface 1958 (I / O interface). The electronic device 1900 may operate based on an operating system stored in the memory 1932, such as Windows Server 2003. TM , Mac OS X TM , Unix TM ,Linux TM , FreeBSD TM or similar.

[0135] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 1932 including computer program instructions that can be executed by the processing component 1922 of the electronic device 1900 to perform the above method.

[0136] The present disclosure may be a system, method and / or computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present disclosure.

[0137] A computer-readable storage medium can be a tangible device that can hold and store instructions for use by an instruction execution device. A computer-readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination thereof. As used herein, a computer-readable storage medium is not to be construed as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through an electrical wire.

[0138] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to be stored in the computer-readable storage medium in each computing / processing device.

[0139] Computer readable program instructions for carrying out operations of the present disclosure can be assembler instructions, instruction-set-architecture (ISA) instructions, machine instructions, machine dependent instructions, microcode, firmware instructions, state-setting data, or either source code or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable program instructions can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider). In some embodiments, electronic circuitry including, for example, programmable logic circuitry, field-programmable gate array (FPGA), or programmable logic array (PLA) can execute the computer readable program instructions by utilizing state information of the computer readable program instructions to personalize the electronic circuitry, in order to perform aspects of the present disclosure.

[0140] The computer readable program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other device to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0141] These computer readable program instructions can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks. These computer readable program instructions can also be stored in a computer readable storage medium that can include random access memory (RAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other data storage device. When the computer readable program instructions are loaded into the computer and other programmable data processing apparatus, a series of operational steps are implemented that provide processes such that the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0142] The computer readable program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus or other device to produce a computer implemented process such that the instructions which execute on the computer, other programmable data processing apparatus, or other device implement the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0143] The computer readable program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus or other device to produce a computer implemented process such that the instructions which execute on the computer, other programmable data processing apparatus, or other device implement the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0144] Embodiments of the present disclosure have been described above, and the description is intended to be illustrative, and not restrictive, of the disclosed embodiments. Many modifications and variations of the described embodiments are possible, and all such modifications and variations are intended to be within the scope of the described embodiments. The description used herein is intended to best explain the principles of the various embodiments, the practical application, and the best mode of using the present disclosure, and to enable others skilled in the art to understand the disclosure, various embodiments, and / or various implementations detailed herein. Any terminology used herein should not be considered limiting of the disclosure, various embodiments, and / or various implementations detailed herein.

Claims

1. A method for calculating the total amount of mercury metal in seafood based on the marine fishery value chain, characterized by: The method comprises: A database of mercury content in multiple types of seafood produced by both capture and aquaculture methods is established. Each type of seafood has at least one piece of label information under each production method, and each piece of label information has a corresponding mercury content. The label information includes a substance classification label and a location classification label. The location classification label includes a country label and a sea area label. Obtaining seafood circulation data for a target time period, the seafood circulation data including catch, aquaculture, import, export, and consumption of each type of seafood for multiple countries; Based on the catch and aquaculture volume of each type of seafood in each country and the seafood mercury content database, calculate the total amount of mercury produced at the production end of each country and the average mercury content of each country; Calculate the total amount of imported mercury from seafood products for each country based on the import and export volumes of each type of seafood for each country and the average mercury content of production in the corresponding trading countries; Based on the total amount of mercury produced and imported for each type of seafood in each country, as well as the total amount of circulation and consumption of each seafood, the total amount of mercury metal in seafood consumed in each country is calculated.

2. The method according to claim 1, characterized in that The database includes a mercury content database of various seafood products from both capture and aquaculture production methods, including: Obtain multiple sample products corresponding to multiple types of seafood produced under both capture and aquaculture production methods, as well as mercury concentration information and attribute information for each sample product, wherein the attribute information includes sample weight, sampling country, sampling sea area, international standard aquatic flora and fauna category, and trophic level; Data synthesis is performed based on multiple sample products of seafood obtained under each production method, the mercury concentration information and attribute information of each sample product, and multiple sets of label information corresponding to each production method of each type of seafood, as well as the mercury content corresponding to each set of label information, are obtained. The label information includes material classification labels determined according to the categories and trophic levels of the International Aquatic Statistical Standards, as well as location classification labels determined according to the sampling country and sampling sea area.

3. The method according to claim 2, characterized in that The method comprises synthesizing data based on obtaining multiple sample products of seafood under each production method, the mercury concentration information and attribute information of each sample product, and obtaining multiple sets of label information corresponding to each production method of each type of seafood, as well as the mercury content corresponding to each set of label information, including: For multiple sample products of seafood obtained under each production method, multiple sets of different label information are determined according to attribute information of the corresponding multiple sample products; The sample weight and mercury concentration information of a plurality of sample products corresponding to each set of label information are obtained, and the mercury concentration per unit weight of the seafood is calculated as the corresponding mercury content according to the sample weight and mercury concentration information of the plurality of sample products.

4. The method according to any one of claims 1 to 3, characterized in that The total amount of mercury produced at the production end of each country is calculated based on the catch and aquaculture volume of each type of seafood in each country and the seafood mercury content database, including: For each type of seafood, a matrix template is constructed based on two dimensions: a plurality of corresponding material classification labels and a plurality of position classification labels, wherein each element in the matrix template corresponds to a set of label information consisting of a material classification label and a position classification label; Searching the seafood mercury content database for the mercury content corresponding to each set of label information under the seafood fishing method and the seafood farming method, respectively, and filling in the matrix template to obtain a fishing mercury content matrix and a farming mercury content matrix; Extracting the sub-catch amount and sub-aquaculture amount corresponding to each set of label information from the catch amount and aquaculture amount of each country, and filling them into the matrix template to obtain the catch amount matrix and aquaculture amount matrix respectively; For each country, the total amount of captured mercury is calculated based on the captured mercury content matrix and the capture quantity matrix, and the total amount of aquaculture mercury is calculated based on the aquaculture mercury content matrix and the aquaculture quantity matrix; The production mercury content was calculated based on the total amount of captured mercury and the total amount of aquaculture mercury corresponding to each country.

5. The method according to claim 1, wherein The total amount of imported mercury in seafood for each country is calculated based on the import and export volume of each type of seafood for each country and the average mercury content in the corresponding trading countries, including: Determining an import volume matrix based on the import volume of each type of seafood from each country through different exporting countries, wherein the import volume from different exporting countries is determined based on the export volume of the corresponding country; Determine a matrix of imported mercury concentrations based on the mercury concentrations of each seafood type from each of the mentioned countries corresponding to the different exporting countries; The product of the import quantity matrix and the imported mercury concentration matrix corresponding to each country is calculated to obtain the corresponding total amount of imported mercury.

6. The method according to claim 1, characterized in that The total amount of mercury metal in seafood consumed in each country is calculated based on the total amount of mercury produced and imported for each type of seafood in each country, as well as the total amount of circulation and consumption of each type of seafood, including: For each country, calculate the mercury input for each type of seafood based on the total mercury produced and imported for each type of seafood; Calculate the consumption ratio of each type of seafood based on the total input and consumption of each type of seafood; Based on the mercury input and consumption ratio of each type of seafood, the total amount of mercury metal in seafood consumed in each country was calculated.

7. The method according to claim 1, characterized in that The method further comprises: Calculate the global average mercury production concentration based on the catch and aquaculture output of each seafood type and the total mercury production for each country; The global average imported mercury concentration was calculated based on the import volume of each seafood type for each country and the total amount of imported mercury.

8. A device for calculating the total amount of mercury metal in seafood based on the marine fishery value chain, characterized in that: The device comprises: a database determination module, configured to determine a database of mercury content of multiple types of seafood produced by both capture and aquaculture methods, wherein each type of seafood has at least one piece of label information under each production method, each piece of label information having a corresponding mercury content, the label information including a substance classification label and a location classification label, the location classification label including a country label and a sea area label; a circulation data determination module, configured to obtain seafood circulation data for a target time interval, wherein the seafood circulation data includes catch, aquaculture, import, export, and consumption of each type of seafood for a plurality of countries; a total mercury production determination module, configured to calculate the total mercury production at the production end of each country and the average mercury production content of each country based on the catch and aquaculture volume of each type of seafood in each country and the seafood mercury content database; a module for determining the total amount of imported mercury, configured to calculate the total amount of imported mercury of seafood imported by each country based on the import and export volume of each type of seafood of each country and the average mercury content of production in the corresponding trading countries; The total mercury metal amount determination module is used to calculate the total mercury metal amount of seafood consumed in each country based on the total mercury production and import of each type of seafood in each country, as well as the total circulation and consumption of each seafood.

9. An electronic device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to implement the method according to any one of claims 1 to 7 when executing the instructions stored in the memory.

10. A non-volatile computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the method according to any one of claims 1 to 7 is implemented.

Images