Industrial impact on groundwater quality with special reference to Cr2+ and Pb2+ in coastal aquifers

The present investigation has been carried out in the Ottapidaram taluk to evaluate the suitability of groundwater for drinking purposes and to assess the non-carcinogenic health risks. Twenty groundwater samples were collected, and the major physicochemical parameters were measured along with the h...

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Veröffentlicht in:Environmental monitoring and assessment 2021-07, Vol.193 (7), Article 389
Hauptverfasser: Lakshmi, Ramamoorthy Venkada, Raja, Velayutham, Chidambaram, Sabarathinam, Sekar, Chelladurai Puthiya, Neelakantan, Mallanpillai Anthakrishnan
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container_issue 7
container_start_page
container_title Environmental monitoring and assessment
container_volume 193
creator Lakshmi, Ramamoorthy Venkada
Raja, Velayutham
Chidambaram, Sabarathinam
Sekar, Chelladurai Puthiya
Neelakantan, Mallanpillai Anthakrishnan
description The present investigation has been carried out in the Ottapidaram taluk to evaluate the suitability of groundwater for drinking purposes and to assess the non-carcinogenic health risks. Twenty groundwater samples were collected, and the major physicochemical parameters were measured along with the heavy metals lead (Pb 2+ ) and chromium (Cr 2+ ). The analyzed anions and cations follow the average dominance order, Cl −  > PO 4 3−  > SO 4 2−  > NO 3 −  > F − , and Mg 2+  > Ca 2+  > Na +  > K + , respectively. From the water quality index to know the 45% of the water samples are unsuitable for drinking purposes. The statistical analysis of the data infers that major geochemical process of the region is leaching of salts by contaminated water, followed by industrial pollution and geogenic sources. The spatial representation of the different parameters reveals that the western part of the study area is predominated by geogenic sources and the eastern part is contaminated by industrial effluents. The non-carcinogenic risks of F − , NO 3 − , Cr 2+ , and Pb 2+ were assessed. The findings show 40% of the samples exceeds the chromium hazard quotient, and 50% exceed the lead hazard quotient value of 1 recommended by the US Environmental Protection Agency (USEPA). The present investigation shows that Cr 2+ and Pb 2+ highly pollute the groundwater due to the industrial impacts. The present study suggests that the groundwater from this taluk is worse, and people from this taluk have health risks due to groundwater drinking.
doi_str_mv 10.1007/s10661-021-09186-9
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Twenty groundwater samples were collected, and the major physicochemical parameters were measured along with the heavy metals lead (Pb 2+ ) and chromium (Cr 2+ ). The analyzed anions and cations follow the average dominance order, Cl −  &gt; PO 4 3−  &gt; SO 4 2−  &gt; NO 3 −  &gt; F − , and Mg 2+  &gt; Ca 2+  &gt; Na +  &gt; K + , respectively. From the water quality index to know the 45% of the water samples are unsuitable for drinking purposes. The statistical analysis of the data infers that major geochemical process of the region is leaching of salts by contaminated water, followed by industrial pollution and geogenic sources. The spatial representation of the different parameters reveals that the western part of the study area is predominated by geogenic sources and the eastern part is contaminated by industrial effluents. The non-carcinogenic risks of F − , NO 3 − , Cr 2+ , and Pb 2+ were assessed. The findings show 40% of the samples exceeds the chromium hazard quotient, and 50% exceed the lead hazard quotient value of 1 recommended by the US Environmental Protection Agency (USEPA). The present investigation shows that Cr 2+ and Pb 2+ highly pollute the groundwater due to the industrial impacts. 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Twenty groundwater samples were collected, and the major physicochemical parameters were measured along with the heavy metals lead (Pb 2+ ) and chromium (Cr 2+ ). The analyzed anions and cations follow the average dominance order, Cl −  &gt; PO 4 3−  &gt; SO 4 2−  &gt; NO 3 −  &gt; F − , and Mg 2+  &gt; Ca 2+  &gt; Na +  &gt; K + , respectively. From the water quality index to know the 45% of the water samples are unsuitable for drinking purposes. The statistical analysis of the data infers that major geochemical process of the region is leaching of salts by contaminated water, followed by industrial pollution and geogenic sources. The spatial representation of the different parameters reveals that the western part of the study area is predominated by geogenic sources and the eastern part is contaminated by industrial effluents. The non-carcinogenic risks of F − , NO 3 − , Cr 2+ , and Pb 2+ were assessed. 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subjects Anions
Aquifers
Atmospheric Protection/Air Quality Control/Air Pollution
Calcium
Calcium ions
Carcinogens
Cations
Chromium
Coastal aquifers
Drinking
Drinking water
Earth and Environmental Science
Ecology
Ecotoxicology
Effluents
Environment
Environmental Management
Environmental monitoring
Environmental protection
Environmental science
Groundwater
Groundwater pollution
Groundwater quality
Health risk assessment
Health risks
Heavy metals
Industrial effluents
Industrial pollution
Industrial wastes
Industrial wastewater
Leaching
Lead
Magnesium
Metals
Monitoring/Environmental Analysis
Parameters
Physicochemical processes
Physicochemical properties
Quotients
Salts
Statistical analysis
Statistical analysis of data
Statistical methods
Water analysis
Water pollution
Water quality
Water sampling
title Industrial impact on groundwater quality with special reference to Cr2+ and Pb2+ in coastal aquifers
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