Source Apportionment of PM10 in Kaifeng, China
Air pollution caused by ambient PM10 (paniculate matter with the aerodynamics diameter less than 10μm) is a serious problem in Kaifeng, the city in Henan province of China. In order to provide a better understanding of the sources contributing to PM10, about 200 filter samples were collected at 7-day intervals in February, April, and September in 2005 at five locations. Nineteen chemical elements, two water-soluble ions, total carbon, and organic carbon were analyzed in this study. Seven contributive sources were identified and their contributions to PM10 in Kaifeng City were estimated using chemical mass balance (CMB) model. The apportionment result showed that: resuspended dust was the largest contributor and the second largest contributor was coal combustion dust; vehicle exhaust contribution rate was more than 10％; there was serious secondary aerosol pollution in the urban atmosphere. Some control measures were proposed to reduce the PM10 pollution in this paper.
Source apportionment PM10 Chemical mass balance
Lin Wu Yinchang Feng Jianhui Wu
College of Environmental Science and Engineering, Nankai University
国际会议
天津
英文
210-220
2007-07-17（万方平台首次上网日期，不代表论文的发表时间）