title: [Health risk assessment of atmospheric volatile organic compounds in urban-rural juncture belt area].
abstract: A method for determining volatile organic compounds (VOCs) by cryogenic dynamic adsorption in solid adsorbent tubes, subsequent thermal desorption with cryofocusing in a cold trap and analysis by gas chromatography and mass spectrometry was adapted. An internationally recognized four-step evaluation model of health risk assessment (HRA) was adapted to preliminarily assess the health risks caused by volatile organic compounds (VOCs) in urban-rural juncture belt area in Beijing. Results of HRA indicated that non-carcinogenic risk indexes of VOCs are below 1 and non-carcinogenic risk indexes of aromatic substances range from 10(-4)-10(-5), halohydrocarbons in the 10(-4)-10(-1). Volatile pollutants would not cause non-carcinogenic health hazard to exposed population. However, the cancer risk index exposed to carcinogenic benzene was 2.21 x 10(-5), which is higher than that suggested value of USEPA (1x10(-6)) and may cause potential harm to human health. The greatest health risk is in winter, followed by autumn, summer minimum.
authors.affiliation: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. zym8496@163.com
authors.forename: Yu-Min
authors.initials: YM
authors.lastname: Zhou
authors.forename: Zheng-Ping
authors.initials: ZP
authors.lastname: Hao
authors.forename: Hai-Lin
authors.initials: HL
authors.lastname: Wang
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000473:Alkanes / Q000032:analysis; D000475:Alkenes / Q000032:analysis; D001272:Atmosphere / Q000032:analysis; D001554:Benzene / Q000032:analysis; D002681:China; D004784:Environmental Monitoring / Q000379:methods; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006846:Hydrocarbons, Halogenated / Q000032:analysis; D018570:Risk Assessment; D012621:Seasons; D001335:Vehicle Emissions / Q000032:analysis; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D000473:Alkanes; D000475:Alkenes; D006846:Hydrocarbons, Halogenated; D001335:Vehicle Emissions; D055549:Volatile Organic Compounds; D001554:Benzene