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Shukla, Saurabh
- Sources and Leaching of Nitrate Contamination in Groundwater
Abstract Views :280 |
PDF Views:100
Authors
Affiliations
1 Institute of Technology, ShriRamswaroop Memorial University, Barabanki 225 003, IN
1 Institute of Technology, ShriRamswaroop Memorial University, Barabanki 225 003, IN
Source
Current Science, Vol 118, No 6 (2020), Pagination: 883-891Abstract
Nitrate is an important and widespread contaminant of groundwater and surface water resources. Nitrate formed either by the natural processes (atmospheric fixation, lightning storms) or added through anthropogenic activities (fertilizer applications, septic tanks) enters the hydrosphere with virtual ease. In this article we review various concepts discussing the different sources behind elevated nitrate levels. Moreover, an attempt is also made towards preparing a comprehensive framework to understand the leaching of nitrate in groundwater. This framework would effectively help in understandingthe origin and dynamics controlling the fate of nitrate in groundwater, which is vital for managing the associated risks and safeguarding the water supplies.Keywords
Geogenic Sources, Groundwater Pollution, Methemoglobinemia, Mineral Weathering, Nitrate Contamination.Full Text
- Water Quality Index Assessment of Groundwater in the Central Ganga Plain with Reference to Raebareli District, Uttar Pradesh, India
Abstract Views :256 |
PDF Views:94
Authors
Affiliations
1 Institute of Technology, Shri Ramswaroop Memorial University, Barabanki 225 003, IN
1 Institute of Technology, Shri Ramswaroop Memorial University, Barabanki 225 003, IN
Source
Current Science, Vol 119, No 8 (2020), Pagination: 1308-1315Abstract
The major problem of groundwater contamination primarily in the Indo-Gangetic alluvium is of fluoride, nitrate, arsenic, iron and salinity. One such area is Raebareli district, Uttar Pradesh, India representing the central Indo-Gangetic alluvium, where groundwater contamination through fluoride, nitrate and salinity has already been reported. However, a comprehensive picture pertaining to water quality as a whole has not been published yet. The present study deals with the changes in water quality parameters in groundwater samples of Raebareli district to present a wholesome picture. The results for water quality index (WQI) show that 7% samples in the study area are in the class of ‘unsuitable for drinking’ purposes, with WQI value as high as 411.5. Moreover, the results suggest that 57% and 43% of the samples in the premonsoon and post-monsoon period respectively, are under the category of ‘poor’ water. This study will enable the government authorities to suggest alternate drinking water sources in the affected area.Keywords
Alluvium, Fluoride, Groundwater Pollution, Nitrate, Salinity, Water Quality Index.Full Text