A new method for estimating the environmental capacity of fine particulate matter and its precursors

Abstract

The invention provides a novel method for estimating the environment capacity of fine particles and precursors of the fine particles. The novel method comprises steps as follows: obtaining the total atmosphere static capacity; obtaining the total conveying quantity of pollutants in the horizontal direction; obtaining the total quantity of dry deposition and the total quantity of wet deposition and obtaining the total quantity of deposition through summation; obtaining the total quantity of horizontal diffusion and the total quantity of vertical diffusion, and obtaining the total quantity of diffusion clearing through summation; obtaining the atmosphere dynamic capacity through summation of the total conveying quantity in the horizontal direction, the total quantity of deposition and the total quantity of diffusion clearing; performing summation on the total atmosphere static capacity and atmosphere dynamic capacity, performing correction and obtaining the corrected environment capacity of the pollutants. The method has the advantages as follows: the containing capability of the atmosphere to the pollutants is quantified through generation, conversion, extinction and other physical and chemical processes on the pollutants, and the environment capacity of the fine particles and the precursors of the fine particles has the characteristic of spatiotemporal dynamics; when the provided method is used for estimating the environment capacity of the atmospheric pollutants, the result more approaches the real monitoring value. The method further has the advantages of simple and rapid estimation process and small calculated quantity.

Description

technical field [0001] The invention belongs to the field of environmental science and technology, and in particular relates to a new method for estimating the environmental capacity of fine particles and their precursors. Background technique [0002] Atmospheric environmental capacity refers to the maximum allowable emission of air pollutants in a region under the constraints of certain environmental objectives. Atmospheric environmental capacity has been used as an important basis to support the national total control of air pollutants and air quality management in my country. [0003] At present, the atmospheric environmental capacity accounting methods mainly include: A-P value method, multi-source model method, linear programming method, and third-generation air quality model iterative algorithm. [0004] The A-P value method takes the air quality standard as the control target, and on the basis of the diffusion and dilution laws of air pollutants, uses the allowable ...

AI Technical Summary

Problems solved by technology

This method can realize the calculation of the environmental capacity of fine particulate matter, but it needs repeated simulations, which requires a large amount of calculation, and the simple emission reduction plan based on the principle of anti-degradation of air quality will lead to a serious underestimation of the environmental capacity of areas that do not exceed the standard

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