Effects of Inland Dust of China on the Particulate Pollution of Mid-Eastern China
【摘要】：Using the dust data, MODIS remote sensing data and AERONET, we find that: The transmission of west sand-dust is an important factor of the increase of AOT and decline of air quality in mid-eastern China, especially from March to May of each year. The intensity, range and duration of source region sand-dust are directly related to the effect of west dust on the particulate pollution of mid-eastern China, and higher latitude cities are affected more than the lower latitude cities. The increase of precipitation, decrease of cold air activities and good vegetation growth condition can reduce this effect. The main dust source regions of Xi'an are South Xinjiang Basin, Gansu and Ningxia area, and the main dust source region of Beijing is mid-western of Inner Mongolia. During 2000 to 2007 the transmission of west sand-dust all courses the increase of AOT in Beijing, but this effect vary with the frequency of dust weather, the intension of cold air activities in spring, the precipitation and vegetation growth condition of the transmission path areas and Beijing.