气候变化领域集成服务门户(CCPortal): Ecological and health risk assessment of potentially toxic elements in the major rivers of Pakistan: General population vs. Fishermen

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DOI	10.1016/j.chemosphere.2018.03.082
	Ecological and health risk assessment of potentially toxic elements in the major rivers of Pakistan: General population vs. Fishermen
	Nawab, Javed; Khan, Sardar; Wang Xiaoping
通讯作者	Wang, XP (通讯作者)
发表日期	2018
ISSN	0045-6535
EISSN	1879-1298
起始页码	154
结束页码	164
卷号	202
英文摘要	Large amounts of potentially toxic elements (PTEs) have, and continue to be, released into the freshwater ecosystems of Pakistan. However, there is limited information available on the ecological risk of PTEs from sediments and fish consumption, for both the general population and fishermen, at the national scale in Pakistan. In this study, water, sediments and fish samples were collected from major rivers (Chenab, Upper Indus, Lower Indus and Kabul) across Pakistan and analyzed through Inductively Coupled Plasma Mass Spectrometer (ICP-MS), Inductively Coupled Plasma Atomic Emission Spectroscopy ICP-AES and Atomic Fluorescence Spectrometry (AFS), respectively. Ecological risk analysis of sediments revealed that Cd posed a high ecological risk in the Upper Indus and Chenab, a considerable risk in the Lower Indus, and moderate risk in the Kabul. The target hazard quotient of As through fish tissue consumption exceeded safety levels for fishermen at all the rivers, where Cd exceeded at Upper Indus and Chenab, and Pb for Chenab fishermen only. For the general population, PTE ingestion through fish tissues was within the safety limits at all rivers. Meanwhile, the total target hazard quotient in all three rivers exceeded the safety limit, representing a high risk for the fishermen of Pakistan. The results show that ecological risk and target hazard quotient assessment not only provides valuable information for future research in terms of PTE contamination in the major rivers of Pakistan, but also all the metal pollutants from rivers finally reach to Arabian Sea, therefore might pose a risk to marine ecosystem at national and international scale. (C) 2018 Elsevier Ltd. All rights reserved.
关键词	HEAVY-METAL POLLUTION TRACE-METALS ORGANOCHLORINE PESTICIDES NORTHEAST CHINA BURIGANGA RIVER CHENAB RIVER PEARL RIVER FISH WATER SEDIMENTS
英文关键词	Ecological risk assessment; Fish consumption; PTE contamination; Fishing industry; Health risk
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000430882700019
来源期刊	CHEMOSPHERE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259233
推荐引用方式 GB/T 7714	Nawab, Javed,Khan, Sardar,Wang Xiaoping. Ecological and health risk assessment of potentially toxic elements in the major rivers of Pakistan: General population vs. Fishermen[J]. 中国科学院青藏高原研究所,2018,202.
APA	Nawab, Javed,Khan, Sardar,&Wang Xiaoping.(2018).Ecological and health risk assessment of potentially toxic elements in the major rivers of Pakistan: General population vs. Fishermen.CHEMOSPHERE,202.
MLA	Nawab, Javed,et al."Ecological and health risk assessment of potentially toxic elements in the major rivers of Pakistan: General population vs. Fishermen".CHEMOSPHERE 202(2018).