title: Contamination and health risks of heavy metals in street dust from a coal-mining city in eastern China.
abstract: We collected street dust from Huainan, a typical coal-mining city in China, to investigate the contamination features and health risks of heavy metals. Concentrations of Co, Cr, Cu, Pb, As, and Sb were generally low to moderate, while pollution levels of Cd and Hg were moderate to high. Concentrations of Cd and Hg were associated with considerable health risks at 64.3% and 58.6% of sites, respectively. In particular, about a fifth of samples had associated high risks as a result of Hg contamination levels. Relative to other urban areas, the street dust from the mining area had no more severe metal pollution, which might be partly attributed to the deposition of coal dust onto street dusts. A source assessment indicated that metals in dust form Huainan were mainly derived from vehicular-related activities, industrial emissions, weathering of coal dust and natural soils, and coal combustion. Although the health risk levels from exposure to individual metals in dusts were low, the non-carcinogenic risks from multiple metals to local children exceeded the acceptable level (1.0), suggesting that the overall risk from exposure to multiple metals in dust is concerning.
authors.affiliation: MOE Key Laboratory of Regional Energy and Environmental Systems Optimization, Environmental Research Academy, North China Electric Power University, Beijing 102206, China. Electronic address: zwtang@ncepu.edu.cn.
authors.forename: Zhenwu
authors.initials: Z
authors.lastname: Tang
authors.affiliation: MOE Key Laboratory of Regional Energy and Environmental Systems Optimization, Environmental Research Academy, North China Electric Power University, Beijing 102206, China. Electronic address: 15650798262@163.com.
authors.forename: Miao
authors.initials: M
authors.lastname: Chai
authors.affiliation: Key Laboratory of Trace Element Nutrition of National Health and Family Planning Commission, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China. Electronic address: jlcheng77@163.com.
authors.forename: Jiali
authors.initials: J
authors.lastname: Cheng
authors.affiliation: Beijing GeoEnviron Engineering & Technology, Inc., Beijing 100095, China. Electronic address: jinsolid@qq.com.
authors.forename: Jing
authors.initials: J
authors.lastname: Jin
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: cqyyf@163.com.
authors.forename: Yufei
authors.initials: Y
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: niezq@craes.org.cn.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Nie
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: huangqf@craes.org.cn.
authors.forename: Qifei
authors.initials: Q
authors.lastname: Huang
authors.affiliation: Huanghua Municipal Environmental Protection Bureau, Huanghua, Hebei 061100, China. Electronic address: 851585506@qq.com.
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Li
mesh_terms: D000328:Adult; D000393:Air Pollutants / Q000032:analysis; D002104:Cadmium / Q000032:analysis; D002648:Child; D002681:China; D002947:Cities; D003032:Coal Mining; D004391:Dust / Q000032:analysis*; D004435:Eating; D004784:Environmental Monitoring; D004787:Environmental Pollution; D006801:Humans; D019570:Inhalation Exposure / Q000032:analysis*; D008628:Mercury / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D018570:Risk Assessment; D012867:Skin / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D004391:Dust; D019216:Metals, Heavy; D012989:Soil Pollutants; D002104:Cadmium; D008628:Mercury
keywords: Heavy metal; Huainan; Human health risk; Pollution; Street dust