Arid
DOI10.1007/s40808-016-0260-1
Geostatistical modeling of fluoride enrichment and nitrate contamination in the groundwater of Lower Bhavani Basin in Tamil Nadu, India
Kumar, P. J. Sajil
通讯作者Kumar, PJS
来源期刊MODELING EARTH SYSTEMS AND ENVIRONMENT
ISSN2363-6203
EISSN2363-6211
出版年2017
卷号3期号:1
英文摘要Contamination of groundwater is posing serious threat to the household and drinking water supply schemes all over the world. Increase in concentration of Fluoride (F-) and Nitrate (NO3-) in the groundwater is frequently reported from Indian subcontinent. In this paper, we have studied the F- and NO3- concentration in the Lower Bhavani Basin located in Tamil Nadu state in south India. This is a hard rock dominated semi-arid climatic region, where groundwater is the potential source of drinking and agricultural purposes. Among the total 36 groundwater samples, 22% showed a higher concentration than the permissible of Indian Standard 1.2 mg/L for fluoride. The influence of geochemical factors such as pH, conductivity and Na/Ca ratios were identified. On the other hand, 16% of the samples exceeded the permissible limit of nitrate (45 mg/L). The source of nitrate is identified preliminarily as fertilizer usage in the agricultural fields and secondarily from the sewages. Kriging based Geostatistical model were used the spatial variation mapping of these ions. For fluoride, spatial variation maps showed definite correlation with the Geological formations, i.e., the high fluoride samples were observed in the NE regions of the basin. In case of Nitrate, higher concentration was observed in the Southern part of the basin. Mapping of water quality parameters spatially is proved to be an effective tool for better visualization and management of the groundwater resources in the study area.
英文关键词Groundwater Fluoride enrichment Nitrate pollution Geostatistical model Lower Bhavani Basin
类型Article
语种英语
收录类别ESCI
WOS记录号WOS:000432216000001
WOS关键词INFORMATION-SYSTEM ; DISTRICT ; QUALITY
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/2XILL650/332576
作者单位[Kumar, P. J. Sajil] Free Univ Berlin, Inst Geol Sci, Hydrogeol Grp, Malteserstr 74-100, D-12249 Berlin, Germany
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Kumar, P. J. Sajil. Geostatistical modeling of fluoride enrichment and nitrate contamination in the groundwater of Lower Bhavani Basin in Tamil Nadu, India[J],2017,3(1).
APA Kumar, P. J. Sajil.(2017).Geostatistical modeling of fluoride enrichment and nitrate contamination in the groundwater of Lower Bhavani Basin in Tamil Nadu, India.MODELING EARTH SYSTEMS AND ENVIRONMENT,3(1).
MLA Kumar, P. J. Sajil."Geostatistical modeling of fluoride enrichment and nitrate contamination in the groundwater of Lower Bhavani Basin in Tamil Nadu, India".MODELING EARTH SYSTEMS AND ENVIRONMENT 3.1(2017).
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