Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The shallow aquifer hydrogeochemistry and arsenic exposure from drinking water in rural Bengal have been vividly investigated in the present study. It has been observed that shallow aquifers (<50 m) are often contaminated with arsenic, whereas deeper aquifers (>100 m) are mostly free from arsenic contamination. In some pockets, deeper aquifers are contaminated which is surrounded by safer aquifers. Mostly, shallow aquifers (<50 m) are contaminated with arsenic surrounded by safe and/or deep aquifers (>100 m) with low arsenic concentrations and are scattered throughout the study area with more heterogeneity. Furthermore, sedimentological (color of the sediment and its successions) and/or geomorphological features (land-use pattern and local recharge) are playing a key role to control the arsenic distribution pattern in groundwater from the study area. They control local hydrogeochemical factors thereby mobilizing arsenic into groundwater. It has also been found that yellow sand aquifers are mostly free from arsenic contamination. The deeper aquifers mainly consist of coarse to medium sand (mostly yellow sand) which incorporates the relatively lower concentration of arsenic in groundwater. For the long-term mitigation options, the findings from this investigation are very useful.
The shallow aquifer hydrogeochemistry and arsenic exposure from drinking water in rural Bengal have been vividly investigated in the present study. It has been observed that shallow aquifers (<50 m) are often contaminated with arsenic, whereas deeper aquifers (>100 m) are mostly free from arsenic contamination. In some pockets, deeper aquifers are contaminated which is surrounded by safer aquifers. Mostly, shallow aquifers (<50 m) are contaminated with arsenic surrounded by safe and/or deep aquifers (>100 m) with low arsenic concentrations and are scattered throughout the study area with more heterogeneity. Furthermore, sedimentological (color of the sediment and its successions) and/or geomorphological features (land-use pattern and local recharge) are playing a key role to control the arsenic distribution pattern in groundwater from the study area. They control local hydrogeochemical factors thereby mobilizing arsenic into groundwater. It has also been found that yellow sand aquifers are mostly free from arsenic contamination. The deeper aquifers mainly consist of coarse to medium sand (mostly yellow sand) which incorporates the relatively lower concentration of arsenic in groundwater. For the long-term mitigation options, the findings from this investigation are very useful.
Hydrogeochemical assessment of shallow aquifer in Chakdah, West Bengal for safe water supply
Ayan Das (Autor:in)
2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Hydrogeochemical assessment of shallow aquifer in Chakdah, West Bengal for safe water supply
| Taylor & Francis Verlag | 2020
| British Library Conference Proceedings | 2014
Shallow aquifer water quality risks
| British Library Conference Proceedings | 1997
A Dugwell Program to Provide Arsenic-Safe Water in West Bengal, India: Preliminary Results
| Online Contents | 2003
Assessment of ground water potential of Jalpaiguri district, West Bengal
| British Library Online Contents | 1997