Method and device for source analysis of air pollutants

Abstract

The invention discloses a source analysis method and device of atmospheric pollutants. The method includes: by using a first model, simulating to obtain first concentration contribution data of a simulated area to a target pollutant of a point of interest in a receptor area, wherein the target pollutant is any one of at least one pollutant; In the second model, the second concentration contribution data of each subdivided source in the simulation area to the target pollutant of interest in the receptor area is obtained by simulation; based on the first concentration contribution data and the second concentration contribution data, each subdivided source is calculated and obtained The third concentration contribution data to the target pollutant of interest within the receptor area. The apparatus includes a first concentration contribution acquisition unit, a second concentration contribution acquisition unit, and a third concentration contribution calculation unit. According to the advantages and disadvantages of the second-generation and third-generation air quality models, the method and device combine the second-generation and third-generation air-quality models to achieve refined source analysis.

Description

technical field [0001] The present invention relates to refined source analysis of air pollutants, and more specifically, the present invention relates to a method and device for source analysis of air pollutants. Background technique [0002] The source analysis of atmospheric pollutants is to qualitatively or quantitatively identify the sources of various pollutants in environmental receptors through methods such as chemistry, physics, and mathematics. At present, the technical methods used for pollutant source analysis mainly include source inventory method, source model method and receptor model method. [0003] Among them, the source model method quantitatively describes the physical and chemical processes experienced by air pollutants from source to receptor by means of numerical models at different scales, and quantitatively estimates the contribution of different regions and types of pollution sources to environmental pollutants. Existing source model methods mainly...

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Problems solved by technology

At present, it is widely used to use third-generation air quality models such as CAMx, Models / CMAQ, WRF-chem, NAQPMS, etc. for source apportionment. However, considering the current computing resources, only using third-generation air quality models can generally only Analyze the concentration contribution of a certain type of source to the acceptor point, but not specific to the source contribution of a certain enterprise to the acceptor point

For some simple second-generation air quality models such as AERMOD, ADMS, and CALPUFF, only simple physical and chemical processes are considered, and the concentration contribution of small-scale specific enterprises to receptor points can be simulated. Improvement and lack of background concentration field and other issues, the accuracy of the concentration contribution results of each enterprise to the receptor point obtained by the second-generation model simulation is low

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