Method for determining PM2.5 primary pollution source in urban atmosphere

Abstract

The invention provides a method for determining a PM2.5 primary pollution source in urban atmosphere and relates to the technical field of environmental protection and the prevention and control of atmospheric pollution. The method comprises the following steps: firstly, determining a primary pollutant (NOx, SO2 and volatile organic compounds VOCs) controlling the production of ozone according to continuous monitoring data within an urban region range (such as a national control monitoring site); secondly, the determining the primary pollutant giving the greatest contribution to the production of PM2.5; and finally, determining the primary pollution source of the atmospheric pollution in an urban area according to a discharging list of to-be-controlled primary pollutants. The method is simple, convenient, rapid and reliable.

Description

technical field [0001] The invention relates to the technical fields of environmental protection and air pollution prevention and control. Background technique [0002] The control of air pollutant PM2.5 is a major problem that needs to be solved urgently in the current economic development. In 2014, the Ministry of Environmental Protection of China required all provincial capitals to carry out source analysis of PM2.5, and issued the "Technical Guidelines for Atmospheric Particulate Matter Source Analysis". The development of this work will be conducive to the most economical, most reasonable, most effective, phased governance and control of air pollution while the economy continues to develop. [0003] At present, the method of determining the main pollution sources of the atmosphere mainly adopts the receptor model method in the PM2.5 source apportionment method. The receptor model method is based on the composition of PM2.5 and the composition and characteristics of th...

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Problems solved by technology

The receptor model method is based on the composition of PM2.5 and the composition and characteristics of the pollution source to determine the source of pollution with mathematical methods. This method is complex to operate and has many problems, such as using a linear method to deal with nonlinear, self-organized The characteristic photochemical smog process; the amount of information adopted in the analysis is not much, such as the amount of pollution emissions and changes in meteorological conditions are not considered; only the analysis of local time periods and regions, etc.

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