Research On PM_2.5 Pollution Characteristics Of Fuxin

In recent years, haze around the world, China is the focus of the coverage area of global haze and air pollution problems become an important factor of sustainable development of cities. All of the complex atmospheric pollutants, PM2.5 is the primary pollutant,which decline air quality and occure haze,and disease number are increasing gradually by PM2.5.So PM2.5 air pollution caused by the more and more people’s attention. Complete control of PM2.5 pollution characteristics, variation and regional distribution of effective prevention and control of air pollution is basic research.In this paper, using Fuxin City as an example, based on MODIS remote sensing data, quantitative retrieval February 1,2014 to January 31,2015 in Fuxin City aerosol optical thickness, combined with ground monitoring of PM2.5 data, research Fuxin City PM2.5 pollution characteristics and laws, propose effective preventive measures against the results in order to solve the problem of air pollution in Fuxin.Conclusions are as follows:On the time distribution,PM2.5 of Fuxin City was "Twin Peaks double dip" feature, and on the spatial distribution, concentration of PM2.5.showed obvious seasonal distribution, west of the east side of prevalent than PM2.5 low, but "Evergreen Street station" was highest in spring and autumn.Aerosol optical thickness distribution over time, location and weather changes significantly, the main city of the region is the focus of prevention and treatment of aerosol pollution in Fuxin city. Among the many factors, the wind direction is aerosol pollution in Fuxin city migration change the dominant factor.In the role of wind,the Horqin sandy which located on the north of Fuxin and the Haizhou open-pit mine on the south of city should not be underestimated for Fuxin City.AOD inversion analysis results are directly related to the concentration of PM2.5 mass displays of only 0.18 in Fuxin City, but under the revised elevation and humidity revised, the correlation coefficient increased to 0.87, which is significantly correlated on 0.01 confidence level. Therefore, using aerosol optical thickness retrieval of PM2.5 concentration is feasible, we can use it study the characteristics of PM2.5 in Fuxin City.Among all administrative region of Fuxin,emissions of SO2 and dust Fuxin Mongolian autonomous county is largest.and the emissions of NO2 Taiping is the largest administrative region.But redrawing of Fuxin City under considering factors such as pollution and weather, pollution,levels in descending region is Ⅲ>Ⅳ>Ⅱ>Ⅰ,.The result could be an accordance to adjust the industrial structure, control PM2.5 pollution.