Heavy metal contamination of urban topsoil in a petrochemical industrial city in Xinjiang, China
Heavy metal contamination of urban topsoil in a petrochemical industrial city in Xinjiang, China
复制标题
新疆某石化工业城城市表土重金属污染
DOI：
10.1007/s40333-016-0057-0
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发表时间：
2016-12
影响因子：
3
通讯作者：
Wang W
中科院分区：
文献类型：
--
作者：
Wang Wei;Lai Yingshuai;Ma Yuanyuan;Liu Zilong;Hong Chenglin;Wang Shufen;Wang W
重金属污染是世界上许多国家普遍存在的现象。以新疆克拉玛依市独山子区为研究区，对城市土壤重金属污染状况进行了实地调查。在市区范围内采集0-15 cm表层土壤样品56个，分析了Cu、Zn、Cd、Pb、Cr、As和Ni 7种元素。这些重金属的平均含量均高于新疆土壤背景值。采用污染指数法和生态风险指数法对城市土壤重金属污染程度和潜在生态风险进行评价。Cu、Zn、Cd、Pb、Cr、As和Ni的污染指数值分别为1.81、1.35、4.64、1.27、1.80、1.39和1.22，潜在生态风险指数值分别为12.03、1.79、185.05、8.39、4.78、18.44和1.79。结果表明，受工业活动影响，独山子城市土壤受到了一定程度的重金属污染，具有较高的生态风险。Cd是研究区城市土壤重金属污染的关键元素。相关性分析、主成分分析和元素浓度空间分布图进一步揭示了城市土壤重金属污染的主要原因是石油化工、煤化工、交通和商业活动。
Heavy metal pollution is a widespread phenomenon in many countries of the world. In this study, we conducted a field investigation to assess the status of heavy metal pollution in urban soils of Dushanzi, a district of Karamay city in Xinjiang, China. A total of 56 soil samples in the topsoil layer of 0–15 cm were collected within the urban area and seven elements (Cu, Zn, Cd, Pb, Cr, As and Ni) were analyzed. The mean concentrations of these metals were all higher than their corresponding background values of soils in Xinjiang. We used the pollution index and ecological risk index to assess the degree of heavy metal pollution and the potential ecological risk of urban soils. The pollution index values of Cu, Zn, Cd, Pb, Cr, As and Ni were 1.81, 1.35, 4.64, 1.27, 1.80, 1.39 and 1.22, respectively; and the potential ecological risk index values for them were 12.03, 1.79, 185.05, 8.39, 4.78, 18.44 and 1.79, respectively. These results indicated that urban soils in Dushanzi were polluted by heavy metals to some extent and demonstrated a high ecological risk, as influenced by industrial activities. Cd was the key element for the metal pollution of urban soils in the study area. Correlation analyses, principal component analysis coupled with the spatial distribution maps of element concentrations further revealed that heavy metal pollution of urban soils can be mainly attributed to petrochemical industry, coal chemical industry, traffic and commercial activities.
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影响因子：
3
作者：
Binggan Wei;F. Jiang;Xuemei Li;Shuyong Mu
通讯作者：
Binggan Wei;F. Jiang;Xuemei Li;Shuyong Mu
DOI：
--
发表时间：
2003-05
期刊：
Huan jing ke xue= Huanjing kexue
影响因子：
--
作者：
Xinmin Wu;Lianqing Li;G. Pan;Yufen Ju;Haiyang Jiang
通讯作者：
Xinmin Wu;Lianqing Li;G. Pan;Yufen Ju;Haiyang Jiang
影响因子：
8.9
作者：
Maas, S.;Scheifler, R.;Giraudoux, P.
通讯作者：
Giraudoux, P.
影响因子：
8.8
作者：
Mico, C.;Recatala, L.;Sanchez, J.
通讯作者：
Sanchez, J.
中国上海城市土壤和路边灰尘的潜在有毒金属污染
影响因子：
8.9
作者：
Shi, Guitao;Chen, Zhenlou;Teng, Jiyan
通讯作者：
Teng, Jiyan