title: [Characteristic of elements in PM2.5 and health risk assessment of heavy metals during heating season in Taiyuan].
abstract: The fine particulate matter (PM2.5) sampled during heating season in Taiyuan city and nineteen samples were used to investigate elemental concentrations and its source potential ecological risks of heavy metals, and to assess human exposure and health risk. The result indicated that main elements were Si, Ca, Al, Na, Mg, K, Fe in PM2.5. The main sources of elements in PM2.5 were divided into five categories including soil dust (43.46%), coal burning (15.69%), vehicle emission (13.41%), industrial dust (9.89%) and the construction cement dust (9.03%). Moreover, the order of potential ecological risk index of heavy metals in PM2.5 was Cd > Ni > Hg > Pb > Cu > Zn > As > Co > Cr > Mn, and the ecological hazards were high. The main exposure of heavy metals in atmosphere was respiratory inhalation . The exposure quantity for children was significantly higher than that for adult. The hazard index values suggested a potential non-carcinogenic risk in PM2.5.
authors.forename: Li-juan
authors.initials: LJ
authors.lastname: Li
authors.forename: Yan-ping
authors.initials: YP
authors.lastname: Wen
authors.forename: Lin
authors.initials: L
authors.lastname: Peng
authors.forename: Hui-ling
authors.initials: HL
authors.lastname: Bai
authors.forename: Feng-xian
authors.initials: FX
authors.lastname: Liu
authors.forename: Mei-xian
authors.initials: MX
authors.lastname: Shi
mesh_terms: D000328:Adult; D000393:Air Pollutants / Q000032:analysis*; D001272:Atmosphere; D002648:Child; D002681:China; D002947:Cities; D003031:Coal; D004391:Dust; D004784:Environmental Monitoring; D006801:Humans; D019216:Metals, Heavy / Q000032:analysis*; D052638:Particulate Matter; D018570:Risk Assessment; D012621:Seasons; D012987:Soil; D001335:Vehicle Emissions
chemical_list: D000393:Air Pollutants; D003031:Coal; D004391:Dust; D019216:Metals, Heavy; D052638:Particulate Matter; D012987:Soil; D001335:Vehicle Emissions