Heavy metal contamination and health risks of indoor dust around Xinqiao Mining Area,Tongling, China |
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Authors: | Yangbing Li Yuesheng Lin Yue Wang Ying Kuang Minghong Wu |
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Affiliation: | 1. College of Life Sciences, Anhui Normal University, China;2. College of Geographical Information and Tourism, Chuzhou College, China;3. College of Territorial Resources and Tourism, Anhui Normal University, China |
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Abstract: | AbstractIn this study, the concentrations and health risks of heavy metals (Cu, Pb, Zn, Ni, Co, Cd, and Cr) in indoor dust are investigated in the vicinity of the Xinqiao mining area, Tongling, China. Results indicate that heavy metals except Co were clearly enriched in indoor dust. Especially Cd was extremely enriched, followed by Zn, Cu, and Pb. However, no significant regional differences (p?>?0.05) were found in other elemental contents aside from Cu. Statistical analysis revealed that metal elements except Co were presumed to originate primarily from mining activities. Health risk assessment indicated that the hazard quotients and hazard indices of all studied metal elements were less than 1 and thus posed no potential noncancer health risks to adults and children. Moreover, the cancer risks of Ni, Cr, Cd, and Co were within acceptable ranges, implying no cancer risk to local residents; however, the noncarcinogenic risk of Pb and the carcinogenic risk of Cr and Cd warrant close attention. |
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Keywords: | source health risk heavy metals indoor dust mining area |
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