A fugacity-based device and method for sampling new pollutants in the earth's surface-atmosphere

Abstract

The application provides a new pollutant sampling device and method based on fugacity theory in the earth surface-atmosphere, and belongs to the technical field of environmental monitoring test equipment. The device comprises a near-surface collection device, an atmospheric collection device, a power device, and two conveying and collecting devices. One end of one conveying and collecting device is connected with the near-surface collection device to obtain a sample in the earth surface-atmosphere when the new pollutant reaches equilibrium according to the fugacity theory, and the other end is connected with the power device. One end of the other conveying and collecting device is connected with the atmospheric collection device to obtain a new pollutant sample in the atmosphere according to the fugacity theory, and the other end is connected with the power device. The device provides a double stable low-flow active collection power to ensure that the collected gas is under the earth surface sampling cover plate during the sampling process, has sufficient residence time, reaches equilibrium, makes the measured experimental data more accurate, and can directly collect the new pollutant sample when the new pollutant reaches equilibrium between the earth surface and the atmosphere to determine the content of the new pollutant.

Description

Technical Field

[0001] This invention relates to the field of environmental monitoring and testing equipment technology, and in particular to a sampling device and method for new pollutants in the surface and atmosphere based on fugacity theory. Background Technology

[0002] Dry deposition refers to the process by which gaseous pollutants, or pollutants adsorbed by airborne particulate matter, settle to the soil surface. The dry deposition flux of gaseous pollutants is:

[0003]

[0004] In the formula F g C represents the dry deposition flux of gaseous pollutants. A C s P represents the concentration of pollutants in the air and soil. s K represents the density of the soil. SA R is the soil-air partition coefficient for pollutants. a R b R c These are the aerodynamic drag coefficient, laminar boundary layer drag coefficient, and near-surface drag coefficient, respectively. Among them, the soil-air partition coefficient (K... SA Fugacity is an important parameter for studying soil-atmosphere exchange of new pollutants and is the essence of the fugacity theory.

[0005] Fugacity is the tendency or inclination of a compound to migrate from one medium to another. Fugacity represents the tendency of molecules to escape from a system in its current state; it is the driving force or dissipation capacity of a substance during migration. The earth-atmosphere partition coefficient (K...) SA It is the ratio of the content of a new pollutant in the soil to the content in the atmosphere when a certain pollutant reaches equilibrium between the soil and the atmosphere under this driving force.

[0006]

[0007] In the formula C s C w This represents the concentration of pollutants in soil and air. In previous studies, the soil-air partition coefficient (K) has been used. SA Generally, these results are obtained through model simulation. This method involves more computational processes and less field monitoring, making it relatively simple and easy to implement. However, it requires a large number of physicochemical parameters. Therefore, it is not suitable for studying substances with uncertain properties or unstable content in complex systems, and the simulation results have a certain degree of error compared to the actual values.

[0008] This invention designs a novel air sampling device for pollutants based on fugacity theory. This device can directly collect samples of novel pollutants when they reach equilibrium between the Earth's surface and the atmosphere. After determining their concentration, the soil-atmosphere partition coefficient (K) can be directly calculated. SA This allows for the direct acquisition of surface fugacity values ​​of new pollutants through measured data, enabling a more accurate calculation of the amount of new pollutants transported from the surface to the atmosphere and a more precise assessment of their environmental safety risks. Summary of the Invention

[0009] In view of this, in order to accurately measure the content of new pollutants when they reach equilibrium between the surface and the atmosphere, so as to directly calculate the soil-atmosphere partition coefficient, an embodiment of the present invention provides a sampling device and method for new pollutants in the surface and atmosphere based on the fugacity theory.

[0010] An embodiment of the present invention provides a sampling device for new pollutants in the surface and atmosphere based on the fugacity theory, comprising a near-ground sampling device, an atmospheric sampling device, a power unit, and two conveying and collecting devices. One of the conveying and collecting devices is connected at one end to the near-ground sampling device to obtain new pollutants in the soil according to the fugacity theory, and at the other end to the power unit to obtain power. The other conveying and collecting device is connected at one end to the atmospheric sampling device to obtain new pollutants in the atmosphere according to the fugacity theory, and at the other end to the power unit to obtain power.

[0011] The two conveying and collecting devices have the same structure. Each conveying and collecting device includes a condensation component, a particulate matter filtration component, and a gas collection component. One end of the condensation component is connected to the near-ground end collection device and the other end is connected to the corresponding particulate matter filtration component. One end of the other condensation component is connected to the atmospheric end collection device and the other end is connected to the corresponding particulate matter filtration component. The other end of each particulate matter filtration component is connected to the corresponding gas collection component. The other end of each gas collection component is connected to the power device.

[0012] Furthermore, each of the condensing components includes a coil, a cooling element, and a collection tank, wherein the coil is sleeved on the cooling element and the outside of the coil is wrapped with an insulation layer, the upper end of the coil is connected to the corresponding particulate filter component, and the lower end is provided with a first branch port and a second branch port, the first branch port being connected to the collection tank.

[0013] Furthermore, the second branch at the lower end of one of the coils is connected to the near-ground end collection device, and the second branch at the lower end of the other coil is connected to the atmospheric end collection device.

[0014] Furthermore, each of the collection tanks is provided with an outer cover, and each of the collection tanks is provided with a switch valve at the lower end of its outer wall.

[0015] Furthermore, each of the particulate matter filtration components includes a particulate matter filter membrane and two filter caps, wherein the two filter caps are adapted and symmetrical, the particulate matter filter membrane is located between the two filter caps, the two filter caps are detachably and fixedly connected by a locking member and clamp the particulate matter filter membrane, one end of one filter cap away from the particulate matter filter membrane is connected to the upper end of the coil in the corresponding condensation component, and the other end of the filter cap away from the particulate matter filter membrane is connected to the corresponding gas collection component.

[0016] Furthermore, each of the gas collection components includes a first collection tube and a second collection tube, wherein the first collection tube and the second collection tube are filled with a new pollutant absorption membrane, and one end of the first collection tube is connected to one end of the second collection tube and the other end is connected to the corresponding filter cover in the corresponding particulate matter filtration component, and the other end of the second collection tube is connected to the power device, and the outer walls of the first collection tube and the second collection tube are fitted with a fixing sleeve.

[0017] Furthermore, the near-ground sampling device includes a surface sampling cover and a reaction chamber, wherein the surface sampling cover is flush with the ground to be sampled, and the surface sampling cover is connected to the ground to be sampled via a support frame. The surface sampling cover has an opening at its center, and the reaction chamber cover is placed over the opening and is sealed and fixedly connected to the upper surface of the surface sampling cover. The upper end of the reaction chamber is connected to the second branch opening at the lower end of the corresponding coil.

[0018] Furthermore, the atmospheric sampling device includes a telescopic tripod and an atmospheric sampling cylinder, wherein the atmospheric sampling cylinder is fixedly mounted on the upper end of the telescopic tripod, and a rain cover is provided above the atmospheric sampling cylinder. The rain cover is fixedly connected to the telescopic tripod, and the atmospheric sampling cylinder is connected to the second branch port on the coil in the corresponding condensation assembly.

[0019] Furthermore, the power unit is a dual-path gas sampling pump to provide sampling power to the two conveying and collecting devices. The power unit is equipped with a display screen and control area buttons, and the upper end of the power unit is equipped with a shield and a monitoring probe.

[0020] Furthermore, a fixing sleeve is fitted onto the outer wall of each of the first and second collection tubes.

[0021] Furthermore, the aforementioned surface-atmosphere new pollutant sampling device based on fugacity theory also includes a sampling method, which comprises the following steps:

[0022] S1 Assemble the device as required and ensure that all connections are sealed. At the same time, adjust the near-ground end collection device to the ground surface height and ensure that the near-ground end collection device is parallel to the ground surface to achieve balance between the soil surface and the atmosphere, thereby obtaining new pollutant samples in the air. Then, adjust the atmospheric end collection device to be parallel to the ground surface and ensure that the height of the atmospheric end collection device above the ground surface is greater than that of the near-ground end collection device, thereby obtaining new pollutant samples in the atmosphere.

[0023] S2. Remove the device and collect the corresponding new pollutant samples in the soil surface and the air in the atmosphere from the two gas collection components. After testing and analysis, the soil-air partition coefficient can be calculated.

[0024] The beneficial effects of the technical solution provided by the embodiments of the present invention are as follows: The sampling device and method for new pollutants in the surface and atmosphere based on fugacity theory of the present invention, firstly, the power unit of the device can provide dual-path stable low-flow active sampling power, ensuring that the gas collected during the sampling process has sufficient residence time under the surface sampling cover to reach equilibrium, making the measured experimental data more accurate. Furthermore, through this atmospheric sampling device, samples of new pollutants at the point of equilibrium between the surface and the atmosphere can be directly collected, and the soil-atmosphere partition coefficient (K) can be directly calculated after analysis and testing. SA This allows for a more accurate calculation of the amount of new pollutants transported from the Earth's surface into the atmosphere, thus enabling a more precise assessment of their environmental safety risks.

[0025] Secondly, the condensation component of this device can condense and dehumidify newly collected pollutants from near-surface and atmospheric sources. This can be applied not only to soil surface research but also to studies of organic pollution in rivers, lakes, wetlands, and water surfaces, providing technical support for wetland organic pollution assessment. When collection times are long, the collected condensate can be cleared periodically by pressing the valve on the collection tank, allowing for repeated experiments.

[0026] Third, the gas collection component of the device detects whether the second collection tube of the gas collection component contains new pollutants during the collection process, thereby verifying whether the first collection tube of the gas collection component can completely absorb the new pollutants, achieving the effect of quality assurance, and thus ensuring that the experimental results are more accurate and reliable.

[0027] Fourth, the power unit of the device is equipped with a monitoring probe, which can realize the synchronous acquisition of environmental quality parameters, so as to facilitate the observation of changes in environmental parameters.

[0028] Fifth, this method is simple and can directly calculate the soil-atmosphere partition coefficient after testing and analysis of newly collected soil surface and atmospheric pollutant samples. Compared with empirical calculation and simulation methods, it is more accurate. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a sampling device for new pollutants in the surface and atmosphere based on the fugacity theory of the present invention.

[0030] Figure 2 yes Figure 1 Schematic diagram of the structure of the intermediate condenser assembly;

[0031] Figure 3 yes Figure 1 Schematic diagram of the structure of a medium particulate matter filtration assembly;

[0032] Figure 4 yes Figure 1 Schematic diagram of the gas gathering unit;

[0033] Figure 5 yes Figure 1 A schematic diagram of part of the atmospheric data acquisition device.

[0034] In the diagram: 1-Near-ground sampling device, 2-Conveying and collecting device, 3-Power unit, 4-Atmospheric sampling device, 5-Conveying pipe, 6-Ground to be sampled, 7-Surface sampling cover plate, 8-Support frame, 9-Reaction chamber, 10-Adapter, 11-Condensation assembly, 12-Coil, 13-Refrigeration component, 14-Insulation layer, 15-First branch intersection, 16-Second branch intersection, 17-Collection tank, 18-Outer cover, 19-Switch valve, 20-Particulate filter assembly Components, 21-First filter cover, 22-Second filter cover, 23-Grid, 24-Particulate filter membrane, 25-Flange, 26-Locking component, 27-Gas collection assembly, 28-First collection tube, 29-Second collection tube, 30-New pollutant absorption membrane, 31-Fixing sleeve, 32-Retractable tripod, 33-Atmospheric gas collection tube, 34-Rain cover, 35-Gas vent, 36-Display screen, 37-Control area buttons, 38-Monitoring probe, 39-Shielding umbrella. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0036] Please refer to Figures 1 to 5 An embodiment of the present invention provides a sampling device for new pollutants in the surface and atmosphere based on the fugacity theory, including a near-ground sampling device 1, two conveying and collecting devices 2, a power device 3, an atmospheric sampling device 4, and a conveying pipe 5.

[0037] In this implementation example, the two transport and collection devices 2 are the first transport and collection device and the second transport and collection device, respectively, and the structures of the first transport and collection device and the second transport and collection device are identical. One end of the first transport and collection device is connected to the power device 3 to obtain the collection power, and the other end is connected to the near-ground end collection device 1 to obtain new pollutants in the soil according to the fugacity theory. One end of the second transport and collection device is connected to the power device 3 to obtain the collection power, and the other end is connected to the atmospheric end collection device 4 to obtain new pollutants in the atmosphere according to the fugacity theory. It should be noted that the two transport and collection devices 2 directly collect samples of new pollutants when they reach equilibrium between the surface and the atmosphere, so that the soil-atmosphere partition coefficient (K) can be directly calculated after testing and analysis. SA This allows for a more accurate calculation of the amount of new pollutants transported from the Earth's surface to the atmosphere, thereby enabling a more accurate assessment of its environmental safety risks. In this implementation, the near-ground sampling device 1, the two transport and collection devices 2, the power unit 3, and the atmospheric sampling device 4 are all connected to each other through the transport pipe 5.

[0038] It should also be noted that, since the first conveying and collecting device and the second conveying and collecting device have the same structure in this embodiment, they will be referred to as conveying and collecting device 2 in the subsequent description of the embodiment, and only one conveying and collecting device 2 will be described when describing its function.

[0039] The near-ground sampling device 1 includes a surface sampling cover plate 7, wherein a plurality of support frames 8 are provided on the lower end surface of the surface sampling cover plate 7. In this embodiment, there are four support frames 8, which are located at the four apex corners of the lower end surface of the surface sampling cover plate 7. The surface sampling cover plate 7 is supported on the ground 6 to be sampled through each support frame 8. It should be noted that each support frame 8 is a liftable support body, which can be used to adjust the distance between the surface sampling cover plate 7 and the ground 6 to be sampled. At the same time, the surface sampling cover plate 7 is always flush with the ground 6 to be sampled.

[0040] The surface sampling cover plate 7 has an opening at its center. The near-ground sampling device 1 also includes a reaction chamber 9. In this embodiment, the reaction chamber 9 is hemispherical in shape. The reaction chamber 9 is placed on the opening and is fixedly and sealed to the upper end of the surface sampling cover plate 7. The upper end of the reaction chamber 9 is connected to an adapter 10. The reaction chamber 9 is connected to the delivery pipe 5 through the adapter 10 and to the corresponding delivery and collection device 2 through the delivery pipe 5. This realizes the connection between the near-ground sampling device 1 and the corresponding delivery and collection device 2.

[0041] The atmospheric sampling device 4 includes a telescopic tripod 32 and an atmospheric sampling cylinder 33. The atmospheric sampling cylinder 33 is fixedly mounted on the upper end of the telescopic tripod 32 and is supported on a horizontal surface by the telescopic tripod 32. It should be noted that the atmospheric sampling cylinder 33 must always be flush with the horizontal surface during installation. In actual working conditions, the atmospheric sampling cylinder 33 can be raised to the measurement height by raising and lowering the telescopic tripod 32. A rain cover 34 is provided above the atmospheric sampling cylinder 33 and is fixedly connected to the upper end of the telescopic tripod 32. At the same time, several air holes 35 are provided on the wall of the atmospheric sampling cylinder 33. The atmospheric sampling cylinder 33 is connected to the delivery pipe 5 through the air holes 35, and is connected to the corresponding delivery and collection device 2 through the delivery pipe 5. This realizes the connection between the atmospheric sampling device 4 and the corresponding delivery and collection device 2.

[0042] Each conveying and collecting device 2 includes a condensation component 11, a particulate filter component 20, and a gas collection component 27. One end of each particulate filter component 20 is connected to the corresponding condensation component 11, and the other end is connected to the corresponding gas collection component 27. It should be noted that the two conveying and collecting devices 2 contain a total of two condensation components 11. One condensation component 11 is connected to the reaction chamber 9 through the conveying pipe 5, and then to the near-ground end collection device 1. The other end is connected to the corresponding end of the particulate filter component 20. The other condensation component 11 is connected to the air vent 35 through the conveying pipe 5, and then to the atmospheric end collection device 4. The other end is connected to the corresponding end of the particulate filter component 20.

[0043] Each condenser assembly 11 includes a coil 12, a cooling element 13, and a collection tank 17. Each coil 12 is fitted onto the corresponding cooling element 13, and each cooling element 13 is provided with an insulation layer 14. The insulation layer 14 then wraps around the corresponding coil 12, preventing cold energy dissipation. It should be noted that in this embodiment, each cooling element 13 is funnel-shaped, with the corresponding coil 12 fitted onto its outer wall. Furthermore, each cooling element 13 represents a relatively mature existing technology used to cool the corresponding coil. The gas inside the coil 12 is dehumidified; the upper end of each coil 12 is connected to the corresponding particulate filter assembly 20, and the lower end is divided into a first branch port 15 and a second branch port 16. The first branch port 15 on the lower end of each coil 12 is inserted into the corresponding collection tank 17 to collect the water generated after dehumidification. The outer wall of each collection tank 17 is covered with an outer cover 18, and a switch valve 19 is connected to the lower outer wall of each collection tank 17. When the tank is full of water, the water is drained through the corresponding switch valve 19.

[0044] It should be noted here that since there are two conveying and collecting devices 2, there are two coils 12. The second branch port 16 at the lower end of one coil 12 is connected to the conveying pipe 5 and then to the reaction chamber 9 through the conveying pipe 5, thereby connecting with the near-ground collection device 1. The second branch port 16 at the lower end of the other coil 12 is connected to the conveying pipe 5 and then to the air vent 35 through the conveying pipe 5, thereby connecting with the atmospheric collection device 4.

[0045] Each particulate filter assembly 20 includes two filter covers and a particulate filter membrane 24. In this embodiment, the two filter covers in each particulate filter assembly 20 are a first filter cover 21 and a second filter cover 22, and each first filter cover 21 is adapted to the corresponding second filter cover 22. Each first filter cover 21 and each second filter cover 22 are provided with a flange 25. Each first filter cover 21 is fitted with the flange 25 on the corresponding second filter cover 22 through its flange 25 and is locked and detachably connected by a locking member 26. Each first filter cover 21 has a grid 23 at one end near the corresponding second filter cover 22 and a conveying pipe 5 at the other end. Each second filter cover 22 is connected to the corresponding gas collection component 27. One end of each second filter cover 22 near the corresponding first filter cover 21 is provided with a grid 23, and the other end is connected to the corresponding coil 12 through the delivery pipe 5 and then to the corresponding condensation component 11. The grid 23 on each first filter cover 21 and the grid 23 on the corresponding second filter cover 22 cooperate with each other to filter the corresponding particulate filter membrane 24. It should be noted that each particulate filter membrane 24 is clamped by the grid 23 on both sides. The main purpose is to prevent the corresponding particulate filter membrane 24 from deforming due to gas flow when the gas passes through it.

[0046] Each gas collection assembly 27 includes a first collection pipe 28 and a second collection pipe 29. Each second collection pipe 29 is connected to one end of the corresponding first collection pipe 28 via a delivery pipe 5, and the other end is connected to the power unit 3 via the delivery pipe 5. The other end of each first collection pipe 28 is connected to the corresponding end of the first filter cover 21 in the corresponding particulate matter filter assembly 20 via the delivery pipe 5. In this embodiment, each first collection pipe 28 and each second collection pipe 29 are filled with a new pollutant absorption membrane 30 to collect new pollutants. It should be noted that the first collection pipe 28 in each gas collection assembly 27 is used to collect new pollutants, while the corresponding second collection pipe 29 is used to detect whether the new pollutants have been completely absorbed by the corresponding first collection pipe 28. At the same time, in this embodiment, each first collection pipe 28 and each second collection pipe 29 are fitted with a fixing sleeve 31 on their outer wall for protection.

[0047] In this implementation case, the power unit 3 is a dual-path gas sampling pump, which is connected to two gas collection components 27 respectively to provide power. The power unit 3 provides dual-path stable low-flow active sampling power to ensure that the near-surface atmosphere collected during the sampling process has sufficient residence time under the surface sampling cover 7 to reach equilibrium. At the same time, the power unit 3 is equipped with a display screen 36 and control area buttons 37 to display and adjust the corresponding parameters. Furthermore, a shielding umbrella 39 and a monitoring probe 38 are provided at the upper end of the power unit to measure parameters such as temperature, humidity, and air pressure.

[0048] Furthermore, the aforementioned surface-atmosphere new pollutant sampling device based on fugacity theory also includes a sampling method, which comprises the following steps:

[0049] S1 Assemble the device as required, ensuring that all connections are sealed. Simultaneously, adjust the near-ground sampling device 1 to the ground surface height, ensuring that the near-ground sampling device 1 is parallel to the ground surface to achieve equilibrium between the soil surface and the atmosphere, thereby obtaining new pollutant samples from the soil surface atmosphere. Then, adjust the atmospheric sampling device 4 to be parallel to the ground surface, ensuring that the atmospheric sampling device 4 is at a greater height from the ground surface than the near-ground sampling device, thereby obtaining new pollutant samples from the atmosphere.

[0050] Specifically, it should be noted that after installing the device according to the above implementation example, it is necessary to adjust the near-ground end collection device 1 and the atmospheric end collection device 4 to make them parallel to the ground, and ensure that the atmospheric end collection device 4 is about 1.5m above the ground surface.

[0051] S2. Remove the device and collect the corresponding soil surface air pollutant samples and air pollutant samples in the two gas collection components, and then calculate the soil-air partition coefficient.

[0052] Specifically, new pollutant samples from the soil surface and the atmosphere are collected from the two first collection tubes 28 within the two gas collection components 27. It should be noted that when collecting new pollutants from the two first collection tubes 28, it is also necessary to observe whether there are pollutants in the two second collection tubes 29. If not, the soil-atmosphere partition coefficient is directly calculated based on the content of new pollutant samples from the soil surface and the atmosphere within the two first collection tubes 28.

[0053] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0054] Where there is no conflict, the implementation cases and features described above in this paper can be combined with each other.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sampling device for new pollutants in the surface and atmosphere based on fugacity theory, characterized in that; It includes a near-ground sampling device, an atmospheric sampling device, a power unit, and two conveying and collecting devices. One of the conveying and collecting devices is connected at one end to the near-ground sampling device to obtain samples of new pollutants in the soil surface and atmosphere when they reach equilibrium between the soil surface and the atmosphere, according to the fugacity theory, and the other end is connected to the power unit to obtain power. The other conveying and collecting device is connected at one end to the atmospheric sampling device to obtain samples of new pollutants in the atmosphere according to the fugacity theory, and the other end is connected to the power unit to obtain power. The two conveying and collecting devices have the same structure. Each conveying and collecting device includes a condensation component, a particulate matter filtration component, and a gas collection component. One end of the condensation component is connected to the near-ground end collection device and the other end is connected to the corresponding particulate matter filtration component. One end of the other condensation component is connected to the atmospheric end collection device and the other end is connected to the corresponding particulate matter filtration component. The other end of each particulate matter filtration component is connected to the corresponding gas collection component. The other end of each gas collection component is connected to the power device.

2. The surface-atmosphere new pollutant sampling device based on fugacity theory as described in claim 1, characterized in that: Each of the condensing components includes a coil, a cooling element, and a collection tank. The coil is sleeved on the cooling element and is covered with an insulation layer. The upper end of the coil is connected to the corresponding particulate filter component, and the lower end is provided with a first branch port and a second branch port. The first branch port is connected to the collection tank.

3. The surface-atmosphere new pollutant sampling device based on fugacity theory as described in claim 2, characterized in that: One of the lower ends of the coil is connected to the near-ground end collection device, and the other lower end of the coil is connected to the atmospheric end collection device.

4. The surface-atmosphere new pollutant sampling device based on fugacity theory as described in claim 2, characterized in that: Each of the collection tanks is provided with an outer cover, and each of the collection tanks is provided with a switch valve at the lower end of its outer wall.

5. The surface-atmosphere new pollutant sampling device based on fugacity theory as described in claim 1, characterized in that: Each of the particulate matter filtration components includes a particulate matter filter membrane and two filter caps, wherein the two filter caps are adapted and symmetrical, the particulate matter filter membrane is located between the two filter caps, the two filter caps are detachably and fixedly connected by a locking member and clamp the particulate matter filter membrane, one end of one filter cap away from the particulate matter filter membrane is connected to the upper end of the coil in the corresponding condensation component, and the other end of the filter cap away from the particulate matter filter membrane is connected to the corresponding gas collection component.

6. The surface-atmosphere new pollutant sampling device based on fugacity theory as described in claim 1, characterized in that: Each of the gas collection components includes a first collection tube and a second collection tube, wherein the first collection tube and the second collection tube are filled with a new pollutant absorption membrane, and one end of the first collection tube is connected to one end of the second collection tube and the other end is connected to the corresponding filter cover in the corresponding particulate matter filtration component, and the other end of the second collection tube is connected to the power device, and the outer walls of the first collection tube and the second collection tube are fitted with a fixing sleeve.

7. The surface-atmosphere new pollutant sampling device based on fugacity theory as described in claim 1, characterized in that: The near-ground sampling device includes a surface sampling cover and a reaction chamber. The surface sampling cover is flush with the ground to be sampled and is connected to the ground to be sampled via a support frame. An opening is provided at the center of the surface sampling cover. The reaction chamber cover is placed over the opening and is sealed and fixedly connected to the upper surface of the surface sampling cover. The upper end of the reaction chamber is connected to the second branch opening at the lower end of the corresponding coil.

8. The surface-atmosphere new pollutant sampling device based on fugacity theory as described in claim 1, characterized in that: The atmospheric sampling device includes a telescopic tripod and an atmospheric sampling cylinder, wherein the atmospheric sampling cylinder is fixedly mounted on the upper end of the telescopic tripod, and a rain cover is provided above the atmospheric sampling cylinder. The rain cover is fixedly connected to the telescopic tripod, and the atmospheric sampling cylinder is connected to the second branch port on the coil of the corresponding condensation assembly.

9. A surface-atmosphere new pollutant sampling device based on fugacity theory as described in claim 1, characterized in that: The power unit is a dual-path gas sampling pump to provide power for the two conveying and collecting devices. The power unit is equipped with a display screen and control area buttons, and the upper end of the power unit is equipped with a shield and a monitoring probe.

10. The surface-atmosphere new pollutant sampling device based on fugacity theory as described in claim 1 further includes a sampling method, characterized in that, The method includes the following steps: S1 Assemble the device as required and ensure that all connections are sealed. At the same time, adjust the near-ground end collection device to the ground surface height and ensure that the near-ground end collection device is parallel to the ground surface to achieve balance between the soil surface and the atmosphere, thereby obtaining new pollutant samples in the air. Then, adjust the atmospheric end collection device to be parallel to the ground surface and ensure that the height of the atmospheric end collection device above the ground surface is greater than that of the near-ground end collection device, thereby obtaining new pollutant samples in the atmosphere. S2. Remove the device and collect the corresponding soil surface air pollutant samples and air pollutant samples in the two gas collection components. After testing and analysis, the soil-air partition coefficient can be directly calculated.

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