干旱区生态环境知识资源中心(Arid): Groundwater fluoride across the Punjab plains of Pakistan and India: Distribution and underlying mechanisms

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DOI	10.1016/j.scitotenv.2021.151353
	Groundwater fluoride across the Punjab plains of Pakistan and India: Distribution and underlying mechanisms
	Khattak, Junaid Ali; Farooqi, Abida; Hussain, Ishtiaque; Kumar, Anand; Singh, Chander Kumar; Mailloux, Brian J.; Bostick, Benjamin; Ellis, Tyler; van Geen, Alexander
通讯作者	Farooqi, A (corresponding author)，Quaid I Azam Univ, Dept Environm Sci, Islamabad, Pakistan. ; Singh, CK (corresponding author)，TERI Sch Adv Studies, Dept Energy & Environm, New Delhi, India. ; Van Geen, A (corresponding author)，Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	806
英文摘要	Chronic exposure from drinking well-water with naturally high concentrations of fluoride (F-) has serious health consequences in several regions across the world including South Asia, where the rural population is particularly dependent on untreated groundwater pumped from private wells. An extensive campaign to test 28,648 wells was conducted across the Punjab plains of Pakistan and India by relying primarily on field kits to document the scale of the problem and shed light on the underlying mechanisms. Groundwater samples were collected from a subset of 712 wells for laboratory analysis of F- and other constituents. A handful of sites showing contrasting levels of F- in groundwater were also drilled to determine if the composition of aquifer sediment differed between these sites. The laboratory data show that the field kits correctly classified 91% of the samples relative to the World Health Organization guideline for drinking water of 1.5 mg/L F-. The kit data indicate that 9% of wells across a region extending from the Indus to the Sutlej rivers were elevated in F- relative to this guideline. Field data indicate an association between the proportion of well-water samples with F- > 1.5 mg/L and electric conductivity (EC) > 1.5 mS/an across six floodplains and six intervening doabs. Low Ca2+ concentrations and elevated bicarbonate (HCO3- > 500 mg/L) and sodium (Na+ > 200 mg/L) in high F- groundwater suggest regulation by fluorite. This could be through either the lack of precipitation or the dissolution of fluorite regulated by the loss of Ca2+ from groundwater due to precipitation of calcite and/or ion exchange with clay minerals. Widespread salinization of Punjab aquifers attributed to irrigation may have contributed to higher F- levels in groundwater of the region. Historical conductivity data suggest salinization has yet to be reversed in spite of changes in water resources management. (C) 2021 Published by Elsevier B.V.
英文关键词	Groundwater Fluoride Geochemistry Public health
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000744157100007
WOS关键词	DRINKING-WATER ; THAR DESERT ; DISTRICTS ; EXPOSURE ; CHILDREN ; INTELLIGENCE ; BANGLADESH ; ENRICHMENT ; FLUOROSIS ; ARAIHAZAR
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376944
作者单位	[Khattak, Junaid Ali; Farooqi, Abida; Hussain, Ishtiaque] Quaid I Azam Univ, Dept Environm Sci, Islamabad, Pakistan; [Kumar, Anand; Singh, Chander Kumar] TERI Sch Adv Studies, Dept Energy & Environm, New Delhi, India; [Mailloux, Brian J.] Barnard Coll, Environm Sci Dept, New York, NY USA; [Bostick, Benjamin; Ellis, Tyler; van Geen, Alexander] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA; [Kumar, Anand] Nalanda Univ, Sch Management Studies, Rajgir, India
推荐引用方式 GB/T 7714	Khattak, Junaid Ali,Farooqi, Abida,Hussain, Ishtiaque,et al. Groundwater fluoride across the Punjab plains of Pakistan and India: Distribution and underlying mechanisms[J],2022,806.
APA	Khattak, Junaid Ali.,Farooqi, Abida.,Hussain, Ishtiaque.,Kumar, Anand.,Singh, Chander Kumar.,...&van Geen, Alexander.(2022).Groundwater fluoride across the Punjab plains of Pakistan and India: Distribution and underlying mechanisms.SCIENCE OF THE TOTAL ENVIRONMENT,806.
MLA	Khattak, Junaid Ali,et al."Groundwater fluoride across the Punjab plains of Pakistan and India: Distribution and underlying mechanisms".SCIENCE OF THE TOTAL ENVIRONMENT 806(2022).