Theemissioncharacteristics Of Airpollutantsbased On Emission Inventoryin Hohhot-baotou-erdos Urban Agglomeration

Regional air pollution has become a hot and difficult issue in air pollution prevention and control in China.Hohhot-Baotou-Erdos urban agglomeration,as a representative of the resource and Energy-based Cities around Beijing,Tianjin and Hebei,has become an important part of air pollution prevention and control in Beijing,Tianjin and Hebei and surrounding areas.Based on establish of emission inventory of Hohhot-Baotou-Erdos urban agglomeration in 2015,this paper analyzes the proportion of coal consumption and pollutant emissions of various industries,and studies the emission characteristics of major pollutants in this region.The conclusion is as follows:1.According to the industrial characteristics of Hohhot-Baotou-Erdos urban agglomeration,six categories of pollution sources,i.e.combustion source,industrial source,living source,mobile source,dust source and agricultural source,as well as six main air pollutants,i.e.SO₂,NOx,NH₃,VOCs,PM₁₀0 and PM_2.5,were determined.Through extensive collection and sorting of pollution source activity level data,the Hohhot-Baotou-Erdos urban agglomeration in 2015 was established by using emission factor method and empirical formula method List of air pollution sources in urban agglomeration.The results are as follows:the total emission of PM₁₀0 in Hohhot-Baotou-Erdos urban agglomeration is 61.96×10⁴ tons,PM_2.5.5 is 27.10×10⁴ tons,VOCs is 63.76×10⁴ tons,NH₃ is 15.80×10⁴ tons,NOx is 44.32×10⁴tons,SO₂ is 48.21×10⁴tons.2.The research shows that PM_2.5.5 is the most important air pollutant in Hohhot-Baotou-Erdos urban agglomeration,in which the living source and combustion source of Hohhot City have significant contribution,and the industrial source also has great contribution;the industrial source,living source and dust source have high contribution in Baotou City;the dust source,industrial source and living source are the main contribution source in Ordos City.3.Hohhot-Baotou-Erdos urban agglomeration should reduce the air pollutant emissions in this area by eliminating backward production capacity,upgrading key industries and cleaning the combustion of bulk coal.4.Hohhot city should control the sources of life,combustion,industry and motor vehicles in order;Baotou city should control the sources of industry,life,dust and motor vehicles in order;Ordos City should control the sources of dust,industry,life and motor vehicles in order...