Impact of geology and anthropogenic activities over the water quality with emphasis on fluoride in water scarce Lalitpur district of Bundelkhand region, India
| Autor: | P. Purushothaman, Rajesh Singh, Ravi Saini, Sudhir Kumar, Kamaleshwar Pratap, S. P. Rai, Megha Sharma, P. Nijesh, Neeraj Pant, Y. S. Rawat |
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| Rok vydání: | 2021 |
| Předmět: |
Adult
Environmental Engineering Groundwater flow δ18O Health Toxicology and Mutagenesis 0208 environmental biotechnology India 02 engineering and technology 010501 environmental sciences 01 natural sciences Water scarcity Fluorides Water Quality Humans Environmental Chemistry Precipitation Drainage Child Groundwater 0105 earth and related environmental sciences Hydrology Hydrogeology Public Health Environmental and Occupational Health Geology General Medicine General Chemistry Pollution 020801 environmental engineering Water quality Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Chemosphere. 279:130496 |
| ISSN: | 0045-6535 |
| Popis: | The Bundelkhand region of India is suffering from acute water scarcity, raising concern over the potability in the region. Therefore, to develop a baseline data set of groundwater quality, sampling was carried out from the 110 existing shallow hand pumps and tube wells covering the Lalitpur district. Groundwater samples were investigated for hydro-geochemical and isotopic signatures (δ18O and δ2H) to understand the driving factors leading to water quality and its contamination in the region. The results of Hierarchical cluster analysis revealed four different clusters according to their water quality. Cluster 1 and 2 water samples have a good quality of water and these samples fall in the vicinity of major or minor drainage networks of the area. Whereas, clusters 3 and 4 are of deteriorated water quality and located far-off from the drainage networks in the study area. The findings from chemical analysis and chemometric method suggest that the groundwater composition is mainly influenced by rock weathering and anthropogenic activities. Fluoride exposure dosage for the infant and children is twice that of adults in the study area, indicating a stronger impact of fluoride concentration in infants and children. The stable isotopic analysis shows that origin of groundwater is local precipitation, with evaporative enrichment in groundwater. The groundwater of cluster 3 and 4 shows evaporative nature along with high EC and Cl concentration. The variation of concentration of ions in the study area prevails along the groundwater flow direction and surface drainage reveals the control of hydrogeological attributes in the groundwater. |
| Databáze: | OpenAIRE |
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