title: Source apportionment of ambient total suspended particulates and coarse particulate matter in urban areas of Jiaozuo, China.
abstract: Approximately 750 total suspended particulates (TSPs) and coarse particulate matter (PM10) filter samples from six urban sites and a background site and >210 source samples were collected in Jiaozuo City during January 2002 to April 2003. They were analyzed for mass and abundances of 25 chemical components. Seven contributive sources were identified, and their contributions to ambient TSP/PM10 levels at the seven sites in three seasons (spring, summer, and winter days) and a "whole" year were estimated by a chemical mass balance (CMB) receptor model. The spatial TSP average was high in spring and winter days at a level of approximately 530 microg/m(3) and low in summer days at 456 microg/m(3); however, the spatial PMo0 average exhibited little variation at a level of approximately 325 microg/m(3), and PM10-to-TSP ratios ranged from 0.58 to 0.81, which suggested heavy particulate matter pollution existing in the urban areas. Apportionment results indicated that geological material was the largest contributor to ambient TSP/PM10 concentrations, followed by dust emissions from construction activities, coal combustion, secondary aerosols, vehicle movement, and other industrial sources. In addition, paved road dust and re-entrained dust were also apportioned to the seven source types and found soil, coal combustion, and construction dust to be the major contributors.
authors.affiliation: State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, Nankai University, Tianjin, People's Republic of China. fengyc@nankai.edu.cn
authors.forename: Yinchang
authors.initials: Y
authors.lastname: Feng
authors.forename: Yonghua
authors.initials: Y
authors.lastname: Xue
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Chen
authors.forename: Jianhui
authors.initials: J
authors.lastname: Wu
authors.forename: Tan
authors.initials: T
authors.lastname: Zhu
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Bai
authors.forename: Shengtang
authors.initials: S
authors.lastname: Fu
authors.forename: Changju
authors.initials: C
authors.lastname: Gu
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000465:Algorithms; D002244:Carbon / Q000032:analysis; D002681:China; D004391:Dust / Q000032:analysis; D004784:Environmental Monitoring; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis*; D012621:Seasons; D012989:Soil Pollutants / Q000032:analysis; D013052:Spectrometry, X-Ray Emission
chemical_list: D000393:Air Pollutants; D004391:Dust; D052638:Particulate Matter; D012989:Soil Pollutants; D002244:Carbon