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标题：Assessment of groundwater quality, toxicity and health risk in an industrial area using multivariate statistical methods
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作者：A. Keshav Krishna ; K. Rama Mohan ; B. Dasaram 等
期刊名称：Environmental Systems Research
电子版ISSN：2193-2697
出版年度：2019
卷号：8
期号：1
页码：1-17
DOI：10.1186/s40068-019-0154-0
语种：English
出版社：Springer
摘要：AbstractBackgroundThis study investigates the common and anthropogenic activities that impact the science of groundwater in and around an industrial zone and exhibits the utilization of multivariate statistical methods for groundwater quality, toxicity and health risk associated with contaminated industrial sites for proficient administration of water assets. A total of 120 groundwater samples were collected during summer and winter season, and analyzed for their twenty physicochemical constituents including seven toxic heavy metals (pH, EC, total dissolved solids (TDS), F, K, Na, Ca, Mg, Cl, CO3, HCO3, NO3, SO4, As, Cd, Cr, Cu, Ni, Pb and Zn). Data obtained was treated using principal component analysis (PCA)/factor analysis (FA), hierarchical cluster analysis (HCA), Correlation coefficient and health risk analysis to find the common pollution source.ResultsThe results for mean abundance during two seasons for cations and anions were 7 and 6.9 for pH; 1875 and 1527 for TDS; 3 and 3.3 (µs/cm) for EC; 655 and 569 for Ca2+; 59 and 56 for Mg2+; 340 and 211 for Na+; 5 and 4 mg/L for K+; 148 and 126 for CO32−301 and 228 for HCO3−; 289 and 223 for Cl−0.5 and 0.85 for F−; 99 and 86 for SO42−28 and 23 mg/L for NO3−. While for heavy metals 18 and 4 for As; 2 and 0.4 for Cd; 29 and 5 for Cr; 17 and 4 for Cu; 25 and 6 for Ni; 82 and 3 for Pb; 953 and 989 µg/L for Zn, respectively. FA identified six dominant factors for each during summer and winter seasons that explained 70.43% and 71.06% of the variance in the dataset. Health risk assessment of chronic daily intake (CDI) and hazard quotient (HQ) during both seasons were in the order Ca > Na > HCO3 > Cl > CO3 > SO4 > Mg > NO3 > K > F and was as well computed.ConclusionThe significant reasons for water quality degrading in the study area were associated with various natural and anthropogenic sources and their unsystematic apportionment, show that proper land uses, industrial planning, design some remedial techniques and implementation of existing laws to have active groundwater resource management.
关键词：KeywordsEnWater qualityGroundwaterContaminationMultivariate analysisRisk assessment