干旱区生态环境知识资源中心(Arid): Arsenic contamination, subsequent water toxicity, and associated public health risks in the lower Indus plain, Sindh province, Pakistan

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DOI	10.1007/s11356-018-2320-8
	Arsenic contamination, subsequent water toxicity, and associated public health risks in the lower Indus plain, Sindh province, Pakistan
	Shahab, Asfandyar 1; Qi, Shihua 2; Zaheer, Muhammad 3
通讯作者	Shahab, Asfandyar
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2019
卷号	26 期号:30 页码:30642-30662
英文摘要	Arsenic (As) contamination in drinking water is a global public health risk. The present study highlighted the geological and anthropogenic causes of As contamination in groundwater (GW) and surface water (SW) and assessment of their potential health risks in Sindh province of Pakistan. Upon analyzing 720 GW and SW samples from 18 different sites, the estimates of As in groundwater and surface water was observed in the range of 0 to 125 and 0 to 35 mu g/L with mean values of 46.8 and 15.43 mu g/L respectively. Majority of the samples exceeded WHO permissible limit of As (10 mu g/L) with higher concentration detected in groundwater samples compared to surface water. Moreover, both of these sample sources were found not potable based on physicochemical characteristics. The results of statistical analysis (correlation analysis, principal component analysis (PCA), and hierarchy cluster analysis (HCA)) indicate that natural mobilization of As in groundwater is believed to be enhanced by the pH-based reductive dissolution of iron hydroxide (FeOH) and competitive sorption of bicarbonate minerals in the presence of microorganisms along with evaporative enrichment while water logging, coal mining, and excessive use of pesticides are believed to be the anthropogenic causes of As enrichment. Furthermore, enormous health risk was associated with As in terms of chronic daily intake (CRI), hazard quotient (HQ), and cancer risk probability (CR) in GW and SW. Mean HQ values in GW were 4.47 mg/kg/day in adults and 3.89 mg/kg/day in children (standard HQ <= 1) and was 1.43 and 1.28 mg/kg/day in SW. Mean CR value in both GW and SW was found higher than the safe limit (10(-6)) having a mean of 2x10(-3) in GW and 7x10(-4) (mg/kg/day) in SW. These findings suggest that majority of the sampling sites carry serious public health risk due to high As values and hence demands exigent remedial and management measures.
英文关键词	Arsenic Ground- and surface water Physicochemical parameters Spatial distribution Multivariate analysis Risk assessment
类型	Article
语种	英语
国家	Peoples R China ; Pakistan
收录类别	SCI-E
WOS记录号	WOS:000494047900013
WOS关键词	MULTIVARIATE STATISTICAL TECHNIQUES ; HIGH-FLUORIDE GROUNDWATER ; DRINKING-WATER ; PHYSICOCHEMICAL PARAMETERS ; QUALITY ASSESSMENT ; UNDERGROUND WATER ; HEAVY-METALS ; THAR DESERT ; DISTRICT ; EXPOSURE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-10-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310196
作者单位	1.Guilin Univ Technol, Coll Environm Sci & Engn, 12 Jiangan Rd, Guilin City 541004, Guangxi, Peoples R China; 2.China Univ Geosci, Sch Environm Studies, Dept Environm Sci, Wuhan, Hubei, Peoples R China; 3.Balochistan Univ IT Engn & Management Sci, Dept Environm Management & Policy, Quetta, Pakistan
推荐引用方式 GB/T 7714	Shahab, Asfandyar,Qi, Shihua,Zaheer, Muhammad. Arsenic contamination, subsequent water toxicity, and associated public health risks in the lower Indus plain, Sindh province, Pakistan[J],2019,26(30):30642-30662.
APA	Shahab, Asfandyar,Qi, Shihua,&Zaheer, Muhammad.(2019).Arsenic contamination, subsequent water toxicity, and associated public health risks in the lower Indus plain, Sindh province, Pakistan.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,26(30),30642-30662.
MLA	Shahab, Asfandyar,et al."Arsenic contamination, subsequent water toxicity, and associated public health risks in the lower Indus plain, Sindh province, Pakistan".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 26.30(2019):30642-30662.