Pollution, ecological-health risks, and sources of heavy metals in soil of the northeastern Qinghai-Tibet Plateau

doi:10.1016/j.chemosphere.2018.02.122

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	Pollution, ecological-health risks, and sources of heavy metals in soil of the northeastern Qinghai-Tibet Plateau
	Wu, Jun; Lu, Jian; Li, Leiming; Min, Xiuyun; Luo, Yongming
第一作者	Wu, Jun
	2018-06
发表期刊	CHEMOSPHERE
ISSN	0045-6535
卷号	201 页码:234-242
摘要	The Qinghai-Tibet Plateau, especially the northeastern region, is not a pure land any more due to recently increasing anthropogenic activities. This study collected soil samples from 70 sites of the northeastern Qinghai-Tibet Plateau to evaluate pollution, ecological-health risks, and possible pollution sources of heavy metals. The concentrations of heavy metals in soil were relatively high. Values of geo-accumulation index exhibited that Hg pollution was the most serious meanwhile Hg possessed the strongest enrichment feature based on enrichment factor values. The modified degrees of contamination showed that about 54.3% and 17.1% of sampling sites were at moderate and high contamination degree while pollution load indexes illustrated that 72.9% and 27.1% of sampling sites possessed moderate and high contamination level, respectively. Ecological risk indexes of heavy metals in soil ranged from 234.6 to 3759.0, suggesting that most of sites were under considerable/very high risks. Cancer risks for adults and children were determined as high and high-very high levels while non-cancer risks for children were high although those for adults were low. Industrial source contributed to the main fraction of ecological and health risks. Summarily speaking, heavy metals in soil of the study area has caused significantly serious pollution and exerted high potential ecological and health risks, especially for children who are more susceptible to hurt from pollutants. Therefore, more efficient and strict pollution control and management in study area should be put out as soon as possible. (C) 2018 Elsevier Ltd. All rights reserved.
DOI	10.1016/j.chemosphere.2018.02.122
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34503
专题	支撑部门
推荐引用方式 GB/T 7714	Wu, Jun,Lu, Jian,Li, Leiming,et al. Pollution, ecological-health risks, and sources of heavy metals in soil of the northeastern Qinghai-Tibet Plateau[J]. CHEMOSPHERE,2018,201:234-242.
APA	Wu, Jun,Lu, Jian,Li, Leiming,Min, Xiuyun,&Luo, Yongming.(2018).Pollution, ecological-health risks, and sources of heavy metals in soil of the northeastern Qinghai-Tibet Plateau.CHEMOSPHERE,201,234-242.
MLA	Wu, Jun,et al."Pollution, ecological-health risks, and sources of heavy metals in soil of the northeastern Qinghai-Tibet Plateau".CHEMOSPHERE 201(2018):234-242.

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