Method for determining pollutant discharge amount in high-altitude area

Abstract

The invention relates to the technical field of atmospheric pollutant detection, and discloses a method for determining the pollutant discharge amount of a high-altitude area, which comprises the following steps of: firstly, calculating the pollutant discharge amount in a plain environment, and simulating the pollutant discharge amount of tunnel construction in the plain environment; the basic influence rule of the altitude change on the emission amount is disclosed by establishing the emission increment regression equation, so that accurate evaluation of the pollutant emission amount of tunnel construction in the high-altitude environment is realized, scientific emission evaluation is provided, and making of a more accurate emission reduction strategy is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of atmospheric pollutant detection, and more specifically, to a method for determining pollutant emissions in high altitude areas. Background Art

[0002] During tunnel construction, the composition of pollutants emitted by construction machinery is complex and varied. The main components include air that does not participate in combustion (mainly composed of nitrogen and oxygen) and the products of complete combustion (carbon monoxide and water). Among the non-main components, emissions are divided into conventional emissions and unconventional emissions. Conventional emissions mainly include carbon soot, nitrogen oxides, hydrocarbons and carbon monoxide; while unconventional emissions include polycyclic aromatic hydrocarbons (PAHs), aldehydes and sulfur dioxide. Among these pollutants, carbon monoxide, hydrocarbons, nitrogen oxides, sulfides and particulate matter are the main sources of environmental pollution, and their emissions far exceed those of other industries, such as power generation and gasoline vehicles. The emission of these pollutants not only causes serious damage to the environment, but also poses a serious threat to the health of construction workers.

[0003] At high altitudes, the combustion efficiency of construction machinery will be affected due to the decrease in air pressure and temperature, resulting in an increase in oxygen consumption and pollutant emissions as the altitude increases. This incomplete combustion problem is particularly prominent in tunnel construction in cold and high altitude areas, further exacerbating environmental pressure and health risks. Therefore, how to scientifically and accurately evaluate the pollutant emissions of high-altitude tunnel construction in order to develop an environmentally friendly, efficient and economical construction plan has become a technical problem that needs to be solved in this field. Summary of the invention

[0004] The present invention provides a method for determining pollutant emissions in high-altitude areas, which is used to solve the problem that the prior art cannot scientifically and accurately evaluate the pollutant emissions of high-altitude tunnel construction. The method comprises:

[0005] Acquire first data and second data, wherein the first data is historical construction project data in a plain environment, and the second data is historical construction project data at different altitudes;

[0006] Determine the pollutant emission of the current construction project in a plain environment based on the first data, and establish an emission increase regression equation based on the second data;

[0007] The pollutant emissions of the current construction project in a plain environment and the altitude are input into the emission increase regression equation to obtain the pollutant emissions of the current construction project.

[0008] Further, determining the pollutant emission of the current construction project in a plain environment according to the first data includes:

[0009] Acquire the construction phase of the construction project in the first data and the corresponding machine operation parameters, where the machine operation parameters are the operation parameters of the construction machinery involved in the work during the construction phase;

[0010] Determine the emission conditions corresponding to the construction phase according to the mechanical operation parameters, obtain the actual pollutant emission data of the construction phase within the emission conditions, and select the standard emission factor change curve of the emission conditions according to the actual pollutant emission data;

[0011] An emission assessment model is established based on the standard emission factor change curve, and the pollutant emissions of the current construction project in a plain environment are determined based on the emission assessment model.

[0012] Furthermore, the step of determining the emission conditions corresponding to the construction phase according to the mechanical operation parameters includes:

[0013] Determine the emission factor of the construction machinery and the working time of the construction machinery during the construction phase based on the machinery operation parameters, where the emission factor is the amount of pollutant emissions generated during the working time;

[0014] Determine the weight value of the emission factor based on the emission factor of the construction machinery, take the weighted sum of the working time of the construction machinery during the construction phase and the weight value of the corresponding emission factor to obtain the machinery pollution coefficient of the construction phase, and determine the corresponding emission conditions based on the machinery pollution coefficient of the construction phase.

[0015] Furthermore, the standard emission factor variation curve of the emission condition is screened out according to the actual pollutant emission data, including:

[0016] Determine the actual pollutant emission factors of the emission conditions based on the actual pollutant emission data, draw the emission factor change curve based on the change of the actual pollutant emission factors, and divide the emission factor change curve into several emission factor change cycles based on the rolling time window;

[0017] Obtain the average value of the emission factor within the emission factor change period, and calculate the difference between the average value of the emission factor within the emission factor change period and the mechanical pollution coefficient of the corresponding emission condition;

[0018] The target period is determined based on the difference between the average value of the emission factor within the emission factor change period and the mechanical pollution coefficient of the corresponding emission condition, and the emission factor change curve within the target period is used as the standard emission factor change curve.

[0019] Furthermore, the emission assessment model is established according to the standard emission factor change curve, and the pollutant emission of the current construction project in a plain environment is determined according to the emission assessment model, including:

[0020] Establishing a training sample set based on the emission conditions of the first data and the corresponding standard emission factor change curve, and establishing an emission assessment model;

[0021] The emission assessment model is trained according to the training sample set to obtain a trained emission assessment model;

[0022] Obtain the emission conditions corresponding to the construction phase of the current construction project, input the current emission conditions into the trained emission assessment model, obtain the emission factor change curve of the current construction project in a plain environment, and determine the pollutant emissions based on the emission factor change curve.

[0023] Furthermore, establishing the emission increase regression equation according to the second data includes:

[0024] Determine the increase in pollutant emissions corresponding to different altitudes according to the second data, draw an altitude coefficient curve according to the increase in pollutant emissions corresponding to each altitude, perform curve fitting on the altitude coefficient curve, and obtain an altitude coefficient regression equation;

[0025] Determine the correlation coefficient between the pollutant emission factor and the construction machinery power according to the first data, and use the correlation coefficient between the pollutant emission factor and the construction machinery power as a correction coefficient;

[0026] The linear term coefficient of the altitude coefficient regression equation is corrected according to the correction coefficient to obtain the emission increase regression equation.

[0027] Furthermore, determining the correlation coefficient between the pollutant emission factor and the construction machinery power according to the first data includes:

[0028] Determine third data according to the first data, wherein the third data is power variation data of the construction machine when the construction machine is running, and draw a power variation curve according to the third data;

[0029] Determine fourth data according to the first data, wherein the fourth data is the emission factor of the construction machinery corresponding to the third data, and draw a pollutant change curve according to the fourth data;

[0030] The correlation coefficient between the power change curve and the pollutant change curve is calculated based on the Pearson correlation coefficient algorithm, and the correlation coefficient between the pollutant emission factor and the construction machinery power is obtained.

[0031] Furthermore, the first-order term coefficient of the altitude coefficient regression equation is corrected according to the correction coefficient, including:

[0032] The coefficient of the first-order term of the altitude coefficient regression equation is corrected according to the altitude coefficient correction formula, and the altitude coefficient correction formula is specifically as follows:

[0033]

[0034] Among them, A is the corrected linear coefficient, A α is the linear coefficient of the altitude coefficient regression equation, R is the correction coefficient, and R α is the preset standard correction factor, and Q is the preset range factor.

[0035] Furthermore, the pollutant emissions of the current construction project in a plain environment and the altitude are input into the emission increase regression equation to obtain the pollutant emissions of the current construction project, including:

[0036] Obtain the altitude of the current construction project, input the altitude of the current construction project into the emission increase regression equation, and obtain the initial emission increase;

[0037] Obtain the ambient temperature at the altitude of the current construction project, determine the fuel combustion efficiency of the construction machinery according to the ambient temperature, correct the initial emission increase according to the fuel combustion efficiency of the construction machinery, and obtain the final emission increase;

[0038] The final increase in emissions is added to the pollutant emissions in a plain environment to obtain the pollutant emissions of the current construction project.

[0039] Furthermore, the determining of the fuel combustion efficiency of the construction machinery according to the ambient temperature and the correction of the initial emission increase according to the fuel combustion efficiency of the construction machinery include:

[0040] Obtain the required temperature value for the maximum fuel combustion efficiency of the construction machinery, calculate the ratio of the ambient temperature to the required temperature value, and obtain the maximum fuel combustion efficiency;

[0041] The reciprocal of the maximum fuel combustion efficiency is calculated, and the final emission increase is obtained by multiplying the reciprocal of the maximum fuel combustion efficiency by the initial emission increase.

[0042] The beneficial effects of the present invention are:

[0043] By applying the above technical scheme, the present invention first calculates the pollutant emissions in a plain environment, simulates the pollutant emissions of tunnel construction in a plain environment, and then reveals the basic influence of altitude changes on emissions by establishing an emission increase regression equation, thereby achieving accurate assessment of pollutant emissions in tunnel construction in a high-altitude environment, providing scientific emission assessment, and helping to formulate more accurate emission reduction strategies. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 The figure shows an overall flow chart of a method for determining pollutant emissions in high altitude areas proposed in an embodiment of the present invention. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] The present application embodiment provides a method for determining pollutant emissions in high altitude areas, such as Figure 1 As shown, including:

[0048] S101, obtaining first data and second data, wherein the first data is historical construction project data in a plain environment, and the second data is historical construction project data at different altitudes;

[0049] S102, determining the pollutant emission of the current construction project in a plain environment according to the first data, and establishing an emission increase regression equation according to the second data;

[0050] S103, inputting the pollutant emission of the current construction project in a plain environment and the altitude into an emission increase regression equation to obtain the pollutant emission of the current construction project.

[0051] In some embodiments of the present application, determining the pollutant emissions of the current construction project in a plain environment based on the first data includes: obtaining the construction stage of the construction project in the first data and the corresponding machinery operating parameters, the machinery operating parameters being the operating parameters of the construction machinery involved in the construction stage; determining the emission conditions corresponding to the construction stage based on the machinery operating parameters, obtaining the actual pollutant emission data of the construction stage within the emission conditions, and screening out the standard emission factor change curve of the emission conditions based on the actual pollutant emission data; establishing an emission assessment model based on the standard emission factor change curve, and determining the pollutant emissions of the current construction project in a plain environment based on the emission assessment model.

[0052] In this embodiment, historical construction project data in a plain environment are obtained, and then the operating parameters of the construction machinery involved in each construction stage in the historical construction projects are obtained. Each construction stage is classified into a corresponding emission condition based on the construction machinery operating parameters. The standard emission factor change curve of each emission condition is screened out according to the pollutant emission of each emission condition after classification. The pollutant emission is the comprehensive emission of nitrogen oxides (NOx), carbon monoxide (CO), sulfur oxides (SOx) and particulate matter (PMx) during the construction process. An emission assessment model is established. The emission assessment model is used to evaluate the emissions of each construction stage of the current construction project in a plain environment to obtain the pollutant emissions of the current construction project in a plain environment.

[0053] In some embodiments of the present application, determining the emission condition corresponding to the construction phase based on the machinery operating parameters includes: determining the emission factor of the construction machinery and the working time of the construction machinery during the construction phase based on the machinery operating parameters, the emission factor being the amount of pollutant emissions produced during the working time; determining the weight value of the emission factor based on the emission factor of the construction machinery, taking the weighted sum of the working time of the construction machinery during the construction phase and the weight value of the corresponding emission factor to obtain the machinery pollution coefficient of the construction phase, and determining the corresponding emission condition based on the machinery pollution coefficient of the construction phase.

[0054] In this embodiment, the pollutant emission factors of different construction machines in each construction stage are determined by the machine operation parameters in each construction stage, and the weight value of the corresponding emission factor is determined by the pollutant emission factor-weight mapping table. The larger the pollutant emission factor, the higher the corresponding weight value. The mechanical pollution coefficient is calculated by taking the weighted sum of the working time of each construction machine in the construction stage and the weight value of the corresponding emission factor, and the corresponding emission condition is determined according to the size of the mechanical pollution coefficient in the construction stage.

[0055] In some embodiments of the present application, the method of screening out a standard emission factor change curve for an emission condition based on actual pollutant emission data includes: determining the actual pollutant emission factor of the emission condition based on the actual pollutant emission data, drawing the emission factor change curve based on changes in the actual pollutant emission factor, and dividing the emission factor change curve into several emission factor change cycles based on a rolling time window; obtaining the emission factor average value within the emission factor change cycle, and calculating the difference between the emission factor average value within the emission factor change cycle and the mechanical pollution coefficient of the corresponding emission condition; determining the target cycle based on the difference between the emission factor average value within the emission factor change cycle and the mechanical pollution coefficient of the corresponding emission condition, and using the emission factor change curve within the target cycle as the standard emission factor change curve.

[0056] In this embodiment, actual pollutant emission data are obtained by collecting actual measured values ​​of pollutant emissions in the construction stages of various emission conditions in historical construction projects, and the pollutant emission factors of each emission condition are determined through the actual pollutant emission data and an emission factor change curve is drawn. Several emission factor change cycles are divided through a preset rolling time window, and the target cycle with a smaller difference is screened out through the difference between the average emission factor value in the emission factor change cycle and the mechanical pollution coefficient of the corresponding emission condition. The smaller the difference between the average emission factor value in the emission factor change cycle and the mechanical pollution coefficient of the corresponding emission condition, the more representative the emission factor of the corresponding cycle is. Therefore, a standard emission factor change curve can be selected to facilitate the subsequent establishment of an emission assessment model.

[0057] In some embodiments of the present application, the emission assessment model is established according to the standard emission factor change curve, and the pollutant emissions of the current construction project in a plain environment are determined according to the emission assessment model, including: establishing a training sample set according to the emission conditions of the first data and the corresponding standard emission factor change curve, and establishing an emission assessment model; training the emission assessment model according to the training sample set to obtain a trained emission assessment model; obtaining the emission conditions corresponding to the construction stage of the current construction project, inputting the current emission conditions into the trained emission assessment model, obtaining the emission factor change curve of the current construction project in a plain environment, and determining the pollutant emissions according to the emission factor change curve.

[0058] In this embodiment, the emission conditions and the corresponding standard emission factor change curves of each construction stage in historical construction projects under a plain environment are determined through the first data, and a training sample set is established through the emission conditions and the corresponding standard emission factor change curves. The training sample set is divided into a training set and a test set in a ratio of 4:1.

[0059] The emission assessment model was established by constructing a five-layer fully connected neural network. The number of neurons in each layer of the fully connected neural network is 64, 32, 16, 8, and 2 respectively, and the activation function of each network in the first four layers is ReLU. The fully connected layer uses SoftMax as the activation function to classify and identify data. The loss function of the training process uses the cross entropy loss function, and the optimizer uses Adam.

[0060] The emission assessment model is trained through the training set, and the emission assessment model is tested through the test set to obtain a trained emission assessment model.

[0061] The emission conditions corresponding to the construction section of the current construction project are input into the trained emission prediction model, and the comprehensive pollutant emissions of the emission factors are calculated based on the output emission factor change curve.

[0062] In some embodiments of the present application, establishing an emission increase regression equation based on the second data includes: determining the pollutant emission increase corresponding to different altitudes based on the second data, drawing an altitude coefficient curve based on the pollutant emission increase corresponding to each altitude, and performing curve fitting on the altitude coefficient curve to obtain an altitude coefficient regression equation; determining the correlation coefficient between the pollutant emission factor and the construction machinery power based on the first data, and using the correlation coefficient between the pollutant emission factor and the construction machinery power as a correction coefficient; and correcting the first-order term coefficient of the altitude coefficient regression equation based on the correction coefficient to obtain an emission increase regression equation.

[0063] In this embodiment, a linear regression equation of altitude coefficient y=A is established by using the increase in pollutant emissions corresponding to different altitudes in the second data. α x, where A α is the linear coefficient of the altitude coefficient regression equation, y is the increase in emissions, and x is the altitude.

[0064] In some embodiments of the present application, determining the correlation coefficient between the pollutant emission factor and the construction machinery power based on the first data includes: determining third data based on the first data, the third data being the power change data of the construction machinery when the construction machinery is running, and drawing a power change curve based on the third data; determining fourth data based on the first data, the fourth data being the construction machinery emission factor corresponding to the third data, and drawing a pollutant change curve based on the fourth data; calculating the correlation coefficient between the power change curve and the pollutant change curve based on the Pearson correlation coefficient algorithm, and obtaining the correlation coefficient between the pollutant emission factor and the construction machinery power.

[0065] In some embodiments of the present application, the step of correcting the linear term coefficient of the altitude coefficient regression equation according to the correction coefficient includes: correcting the linear term coefficient of the altitude coefficient regression equation according to an altitude coefficient correction formula, wherein the altitude coefficient correction formula is specifically:

[0066]

[0067] Among them, A is the corrected linear coefficient, A α is the linear coefficient of the altitude coefficient regression equation, R is the correction coefficient, and R α is the preset standard correction factor, and Q is the preset range factor.

[0068] In this embodiment, the linear term coefficient of the altitude coefficient regression equation is corrected by the correlation coefficient between the power change curve of the construction machinery and the corresponding pollutant change curve. The smaller the correlation coefficient, the less correlated the two curves are. Since the altitude has a positive correlation with the power of the construction machinery, the less correlated the two curves are, the lower the impact of the altitude on the increase in the emission factor. The linear term coefficient is corrected by the correlation coefficient to obtain a more accurate emission increase regression equation y=Ax.

[0069] In some embodiments of the present application, the pollutant emissions of the current construction project in a plain environment and the altitude are input into the emission increase regression equation to obtain the pollutant emissions of the current construction project, including: obtaining the altitude of the current construction project, inputting the altitude of the current construction project into the emission increase regression equation to obtain an initial emission increase; obtaining the ambient temperature at the altitude of the current construction project, determining the fuel combustion efficiency of the construction machinery according to the ambient temperature, and correcting the initial emission increase according to the fuel combustion efficiency of the construction machinery to obtain a final emission increase; adding the final emission increase to the pollutant emissions in a plain environment to obtain the pollutant emissions of the current construction project.

[0070] In this embodiment, the emission increase corresponding to the altitude of the current construction project is calculated by the emission increase regression equation, and the emission increase is corrected and added to the pollutant emissions in a plain environment to obtain the pollutant emissions of the current construction project.

[0071] In some embodiments of the present application, the fuel combustion efficiency of the construction machinery is determined according to the ambient temperature, and the initial emission increase is corrected according to the fuel combustion efficiency of the construction machinery, including: obtaining the required temperature value for the maximum fuel combustion efficiency of the construction machinery, calculating the ratio of the ambient temperature to the required temperature value, and obtaining the maximum fuel combustion efficiency; calculating the inverse of the maximum fuel combustion efficiency, multiplying the inverse of the maximum fuel combustion efficiency by the initial emission increase, and obtaining the final emission increase.

[0072] In this embodiment, the fuel combustion efficiency of the construction machinery will cause changes in the increase in emissions. The lower the fuel combustion efficiency, the greater the increase in emissions. Therefore, the initial increase in emissions is corrected by calculating the inverse of the maximum fuel combustion efficiency to make the final increase in emissions more scientific and accurate.

[0073] By applying the above technical solution, the present invention obtains the first data and the second data, wherein the first data is the historical construction project data in a plain environment, and the second data is the historical construction project data at different altitudes; the pollutant emission of the current construction project in a plain environment is determined according to the first data, and the emission increase regression equation is established according to the second data; the pollutant emission of the current construction project in a plain environment and the altitude are input into the emission increase regression equation to obtain the pollutant emission of the current construction project. It can provide a more scientific emission assessment for tunnel construction in high-altitude areas, and help to formulate a more accurate emission reduction strategy.

[0074] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present invention can be implemented by hardware, or by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each implementation scenario of the present invention.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for determining pollutant emissions in high altitude areas, characterized in that: The method comprises: Acquire first data and second data, wherein the first data is historical construction project data in a plain environment, and the second data is historical construction project data at different altitudes; Determine the pollutant emission of the current construction project in a plain environment according to the first data, and establish a regression equation for the emission increase according to the second data; The pollutant emissions of the current construction project in a plain environment and the altitude are input into the emission increase regression equation to obtain the pollutant emissions of the current construction project.

2. The method for determining pollutant emissions in high altitude areas according to claim 1, characterized in that: Determining the pollutant emission of the current construction project in a plain environment according to the first data includes: Acquire the construction phase of the construction project in the first data and the corresponding machine operation parameters, where the machine operation parameters are the operation parameters of the construction machinery involved in the work during the construction phase; Determine the emission conditions corresponding to the construction phase according to the mechanical operation parameters, obtain the actual pollutant emission data of the construction phase within the emission conditions, and select the standard emission factor change curve of the emission conditions according to the actual pollutant emission data; An emission assessment model is established based on the standard emission factor change curve, and the pollutant emissions of the current construction project in a plain environment are determined based on the emission assessment model.

3. The method for determining pollutant emissions in high altitude areas according to claim 2, characterized in that: Determining the emission conditions corresponding to the construction stage according to the mechanical operation parameters includes: Determine the emission factor of the construction machinery and the working time of the construction machinery during the construction phase based on the machinery operation parameters, where the emission factor is the amount of pollutant emissions generated during the working time; Determine the weight value of the emission factor based on the emission factor of the construction machinery, take the weighted sum of the working time of the construction machinery during the construction phase and the weight value of the corresponding emission factor to obtain the machinery pollution coefficient of the construction phase, and determine the corresponding emission conditions based on the machinery pollution coefficient of the construction phase.

4. The method for determining pollutant emissions in high altitude areas according to claim 3, characterized in that: The standard emission factor variation curve of the emission condition is screened out according to the actual pollutant emission data, including: Determine the actual pollutant emission factors of the emission conditions based on the actual pollutant emission data, draw the emission factor change curve based on the change of the actual pollutant emission factors, and divide the emission factor change curve into several emission factor change cycles based on the rolling time window; Obtain the average value of the emission factor within the emission factor change period, and calculate the difference between the average value of the emission factor within the emission factor change period and the mechanical pollution coefficient of the corresponding emission condition; The target period is determined based on the difference between the average value of the emission factor within the emission factor change period and the mechanical pollution coefficient of the corresponding emission condition, and the emission factor change curve within the target period is used as the standard emission factor change curve.

5. The method for determining pollutant emissions in high altitude areas according to claim 4, characterized in that: The emission assessment model is established according to the standard emission factor change curve, and the pollutant emission of the current construction project in the plain environment is determined according to the emission assessment model, including: Establishing a training sample set based on the emission conditions of the first data and the corresponding standard emission factor change curve, and establishing an emission assessment model; The emission assessment model is trained according to the training sample set to obtain a trained emission assessment model; Obtain the emission conditions corresponding to the construction phase of the current construction project, input the current emission conditions into the trained emission assessment model, obtain the emission factor change curve of the current construction project in a plain environment, and determine the pollutant emissions based on the emission factor change curve.

6. The method for determining pollutant emissions in high altitude areas according to claim 1, characterized in that: The step of establishing a regression equation for the increase in emissions according to the second data includes: Determine the increase in pollutant emissions corresponding to different altitudes according to the second data, draw an altitude coefficient curve according to the increase in pollutant emissions corresponding to each altitude, perform curve fitting on the altitude coefficient curve, and obtain an altitude coefficient regression equation; Determine the correlation coefficient between the pollutant emission factor and the construction machinery power according to the first data, and use the correlation coefficient between the pollutant emission factor and the construction machinery power as a correction coefficient; The linear term coefficient of the altitude coefficient regression equation is corrected according to the correction coefficient to obtain the emission increase regression equation.

7. The method for determining pollutant emissions in high altitude areas according to claim 6, characterized in that: Determining the correlation coefficient between the pollutant emission factor and the construction machinery power according to the first data includes: Determine third data according to the first data, wherein the third data is power variation data of the construction machine when the construction machine is running, and draw a power variation curve according to the third data; Determine fourth data according to the first data, wherein the fourth data is the emission factor of the construction machinery corresponding to the third data, and draw a pollutant change curve according to the fourth data; The correlation coefficient between the power change curve and the pollutant change curve is calculated based on the Pearson correlation coefficient algorithm, and the correlation coefficient between the pollutant emission factor and the construction machinery power is obtained.

8. The method for determining pollutant emissions in high altitude areas according to claim 6, characterized in that: The step of correcting the linear term coefficient of the altitude coefficient regression equation according to the correction coefficient includes: The coefficient of the first-order term of the altitude coefficient regression equation is corrected according to the altitude coefficient correction formula, and the altitude coefficient correction formula is specifically as follows: Among them, A is the corrected linear coefficient, A α is the linear coefficient of the altitude coefficient regression equation, R is the correction coefficient, and R α is the preset standard correction factor, and Q is the preset range factor.

9. The method for determining pollutant emissions in high altitude areas according to claim 1, characterized in that: The pollutant emissions of the current construction project in a plain environment and the altitude are input into the emission increase regression equation to obtain the pollutant emissions of the current construction project, including: Obtain the altitude of the current construction project, input the altitude of the current construction project into the emission increase regression equation, and obtain the initial emission increase; Obtain the ambient temperature at the altitude of the current construction project, determine the fuel combustion efficiency of the construction machinery according to the ambient temperature, correct the initial emission increase according to the fuel combustion efficiency of the construction machinery, and obtain the final emission increase; The final increase in emissions is added to the pollutant emissions in a plain environment to obtain the pollutant emissions of the current construction project.

10. The method for determining pollutant emissions in high altitude areas according to claim 9, characterized in that: The step of determining the fuel combustion efficiency of the construction machinery according to the ambient temperature and correcting the initial emission increase according to the fuel combustion efficiency of the construction machinery includes: Obtain the required temperature value for the maximum fuel combustion efficiency of the construction machinery, calculate the ratio of the ambient temperature to the required temperature value, and obtain the maximum fuel combustion efficiency; The reciprocal of the maximum fuel combustion efficiency is calculated, and the final emission increase is obtained by multiplying the reciprocal of the maximum fuel combustion efficiency by the initial emission increase.

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