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Evaluation of groundwater contamination in Chandigarh: Source identification and health risk assessment

Environmental pollution (1987), 2019-12, Vol.255 (Pt 1), p.113062 [Peer Reviewed Journal]

Copyright © 2019 Elsevier Ltd. All rights reserved. ;EISSN: 1873-6424 ;DOI: 10.1016/j.envpol.2019.113062 ;PMID: 31622959

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  • Title:
    Evaluation of groundwater contamination in Chandigarh: Source identification and health risk assessment
  • Author: Ravindra, Khaiwal ; Thind, Parteek Singh ; Mor, Sahil ; Singh, Tanbir ; Mor, Suman
  • Subjects: Agriculture ; Child ; Environmental Monitoring - methods ; Groundwater - chemistry ; Humans ; India ; Industrial Waste - analysis ; Nitrates - analysis ; Risk Assessment ; Solid Waste - analysis ; Water Pollutants, Chemical - analysis ; Water Quality - standards
  • Is Part Of: Environmental pollution (1987), 2019-12, Vol.255 (Pt 1), p.113062
  • Description: The major objective of the current study is to estimate the groundwater quality and identify the likely sources of contamination in Chandigarh, India. Total 80 groundwater samples were collected from different locations and at various depths. Further, physcio-chemical analysis was done to estimate pH, electrical conductivity (EC), total dissolved solids, total hardness (TH), total alkalinity (TA), Na , K , Cl , SO , PO and NO . The groundwater samples collected from shallow water sources contain higher concentration of total dissolved salts. EC, TA, Cl , TH, Na , and K were found relatively higher in the shallow aquifer (<150 ft). Based on the location of pollution sources at the surface and consecutive geo-statistical distribution of physicochemical characteristics, this study suggests that non-scientific disposal of municipal solid waste, dumping of industrial waste and agricultural activities, in the nearby areas lead to the deterioration of groundwater of shallow aquifer. These observations were also confirmed using various water quality indices and outcomes of multivariate modeling, including principal component analysis. Health risk assessment for nitrates indicated that 29 groundwater samples pose non-carcinogenic health risk for children due to dermal and oral exposure. Hence, there is a need to establish a system for regularly assessing the groundwater quality to minimize public health risks.
  • Publisher: England
  • Language: English
  • Identifier: EISSN: 1873-6424
    DOI: 10.1016/j.envpol.2019.113062
    PMID: 31622959
  • Source: MEDLINE
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