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Levels of five metals in male hair from urban and rural areas of Chongqing, China

文献类型： 外文期刊

作者： He, Ming-Jing 1 ; Wei, Shi-Qiang 1 ; Sun, Yu-Xin 4 ; Yang, Ting 1 ; Li, Qi 1 ; Wang, Deng-Xiang 1 ;

作者机构： 1.Southwest Univ, Coll Resources & Environm Sci, Chongqing 400716, Peoples R China

2.Southwest Univ, Dept Environm Sci & Engn, Coll Resources & Environm, Key Lab Three Gorges Reservoir Reg Ecoenvironm,Mi, Chongqing 400716, Peoples R China

3.Chongqing Key Lab Agr Resources & Environm, Chongqing 400716, Peoples R China

4.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangdong Prov Key Lab Appl Marine Biol, Guangzhou 510301

关键词： Male hair;Metals;Cadmium;Copper;Lead;Nickel;Urban and rural areas;China

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

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收录情况： SCI

摘要： Heavy metals were measured by flame atomic absorption in male hair from residents in urban and rural areas in Chongqing. The median values of the Cd, Cu, Ni, Pb and Zn were 2.90, 23.9, 9.31, 39.3 and 203 mu g/g in urban areas and 0.84, 13.4, 5.56, 14.5 and 169 mu g/g in rural area, respectively. The levels of Cd, Ni and Pb both in urban and rural areas lie at the high end of the worldwide figures. The differences in heavy metal distribution pattern indicated that there were more sources of Cd and Pb in urban areas. The levels of Cd were increasing along with the growth of age except for the aged people in urban areas, and no significant relationship was observed between the levels of the heavy metal and the age. It is noticed that the hair of smokers exhibited more heavy metal levels than that of non-smokers both in urban and rural areas. In addition, the hair metal levels of the smokers and non-smokers in urban areas were significantly higher than those in rural area, respectively. Significant pairwise correlations (p < 0.01) were observed among Cd, Cu, Ni and Pb in rural area and only between Cu and Ni and between Pb and Ni in urban areas, indicating the elements in these two areas might originate from different sources. The elevated levels of Cd, Pb and Ni implied that the residents both in urban and rural areas might be at high risk of toxic metal exposure, especially for the children.

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