原子能科学技术Issue(7)：1325-1330,6.DOI:10.7538/yzk.2014.48.07.1325
PIXE 和 XRF 用于北京新镇地区P M2.5源解析研究
Source Apportionment of PM2.5 in Xinzhen, Beijing Using PIXE and XRF
摘要
Abstract
Increasing attention has been paid to the influence of airborne particulate mat-ter (APM ) on human health and environment .China has set new standards for PM 2.5 , and adopted particular measures to control air pollution .GENT sampler was used to collect sample in Xinzhen ,southwest suburb of Beijing .Proton induced X-ray emissionand X-ray fluorescence were used to analyze 140 APM samples for multielements .Relia-bility assessment and data reconstruction were made in order to build a local air pollution elemental database ,w hich includes elemental concentrations ,sampling parameters and meteorology parameters .The source apportionment was analyzed by positive matrix fac-torization model .Five major sources in Xinzhen were identified and their corresponding apportionment rates were estimated .They are coal burning (29.2% ) ,vehicle exhaust and waste incineration (26.2% ) ,construction industry (23.3% ) ,soil (15.4% ) ,and industry with chlorine (5.9% ) .The trajectories of sources were analyzed using source contribution rates and global meteorological data .Conditional probability function and the potential source contribution function were used to determine where the sources came from ,and the results correspond with surroundings .关键词
大气颗粒物/源解析/贡献率Key words
airborne particulate matter/source apportionment/contribution rate分类
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金象春,倪邦发,张贵英,肖才锦,黄东辉,袁国军,姚永刚,王兴华,华龙,王平生..PIXE 和 XRF 用于北京新镇地区P M2.5源解析研究[J].原子能科学技术,2014,(7):1325-1330,6.基金项目
国际原子能机构区域合作项目资助 （）
