Characteristics, Sources and Health Risk Assessment of Trace Metals in PM10 in Panzhihua, China
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- 作者：Xin Cheng ; Yi Huang ; Zhijie Long ; Shijun Ni…
- 关键词：Mining City ; PM10 ; Trace metals ; SEM ; EDX ; Health risk assessment
- 刊名：Bulletin of Environmental Contamination and Toxicology
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：98
- 期：1
- 页码：76-83
- 全文大小：
- 刊物主题：Pollution, general; Environmental Health; Ecotoxicology; Soil Science & Conservation; Environmental Chemistry; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution;
- 出版者：Springer US
- ISSN：1432-0800
- 卷排序：98
文摘
Ambient PM10 air samples were collected at two industrial sites and one urban residential site in the mining city of Panzhihua, China, from April, 2014, to January, 2015. Mass concentrations of ten trace metals (As, Cd, Cr, Ni, Co, V, Mn, Cu, Pb, and Zn) in PM10 were determined by inductively coupled plasma-mass spectrometry. The results showed Zn, Pb, Cu, Mn and V were the most abundant elements from the industrial sites. Concentrations for Cd, Cr, Co, Ni, Mn and Cu at industrial sites greatly exceeded the air quality standards of the World Health Organization and the Chinese Ministry of Environmental Protection. Principal component analysis indicated that the main sources of the trace metals were steel smelting, fuel combustion, geological and mineral dust. Four different clusters of particles (i.e., mineral, calcium-containing, soot and aluminosilicate) were identified by scanning electron microscopy coupled with energy dispersive X-ray spectrometry. Chromium (Cr) was found to present the highest excess cancer risk, implying the potential for carcinogenic health effects in local inhabitants. Manganese (Mn) presented a non-carcinogenic health risk to children and adults, while the other metals were within acceptable limits.