Source analysis method and device for atmospheric pollutants

Abstract

The invention discloses a source analysis method and device for atmospheric pollutants. The method comprises the steps of acquiring first concentration contribution data of a simulation area to a target pollutant of a concern point in an acceptor area through simulation through a first model, wherein the target pollutant is any pollutant in at least one pollutant; performing simulation through a second model to obtain second concentration contribution data of each subdivision source in the simulation area to the target pollutant of the concern point in the acceptor area; and based on the first concentration contribution data and the second concentration contribution data, calculating to obtain third concentration contribution data of each subdivision source to the target pollutant of the concern point in the acceptor area. The device comprises a first concentration contribution acquisition unit, a second concentration contribution acquisition unit and a third concentration contribution calculation unit. According to the method and the device, the second-generation air quality model and the third-generation air quality model are combined according to the advantages and disadvantages of the second-generation air quality model and the third-generation air quality model so that refined source analysis is realized.

Description

technical field [0001] The present invention relates to refined source apportionment of air pollutants, and more specifically, the present invention relates to a method and device for source apportionment of air pollutants. Background technique [0002] Source apportionment of air pollutants is to qualitatively or quantitatively identify the sources of various pollutants in environmental receptors through chemical, physical, mathematical and other methods. The current technical methods for pollutant source apportionment 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 with different scale numerical models, and quantitatively estimates the contribution of different regions and different types of pollution sources to environmental pollutants. Existing source model methods mainly in...

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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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