Ground water year book- India 2021-22
Ground Water Year Book is prepared annually by CGWB depicting changes in ground water regime of the country through different seasons. It is an effort to obtain information on ground water levels through
Groundwater Quality
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Mechanism of arsenic release to groundwater, Bangladesh and West Bengal
<p>In some areas of Bangladesh and West Bengal, concentrations of As in groundwater exceed guide concentrations, set internationally and nationally at 10 to 50 ?g l?1 and may reach levels in the mg l?1 range. The As derives from reductive dissolution of Fe oxyhydroxide and release of its sorbed As.
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Conceptual model of the evolution of groundwater quality at the wet zone in Sri Lanka
The evolution of groundwater quality at a wet zone in Sri Lanka was made clear using field investigation, chemical and isotopic analyses methods. In the wet zone, the concentrations of major ions and electrical
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Groundwater quality assessment of Tehsil Kheragarh, Agra (India) with special reference to fluoride
Fluoride concentration and other parameters in groundwater from 261 villages in Tehsil Kheragarh of District Agra were assessed and attempts were made to observe the relationship between fluoride and other water quality parameters.
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Arsenic poisoning in the Ganges delta
The natural contamination of drinking water by arsenic needs to be urgently addressed.
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Detailed study of Samta, one of the arsenic-affected villages of jessore District, Bangladesh
In Bangladesh, arsenic in groundwater above 0.05 mg/1, the maximum permissible limit laid down by WHO, was found in 41 out of 64 districts. People suffering from arsenicosis have been identified in 20 districts out of 21 districts we have surveyed so far.
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Groundwater arsenic calamity in Bangladesh
<p>The arsenic affected areas of West Bengal are lying on a sediment of Younger Deltaic Deposition (YDD). The same sediment extends eastwards towards Bangladesh, covering the approximate area of 34 districts out of a total of 64 districts in Bangladesh. We suspect that the groundwater of these 34 districts of Bangladesh may be arsenic contaminated.</p>
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Arsenic in groundwater in seven districts of West Bengal, India
Arsenic has been found in groundwater in seven districts of West Bengal covering an area 37,493 km having about 34 million population. Our survey indicates that 560 villages are arsenic-affected and more
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Fluoride problems in Sri Lanka
Argues that excessive fluorides in groundwater are a serious water quality problem in some parts of Sri Lanka. The incidence of dental fluorosis shows a high correlation with the presence of groundwater
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House members call on Dow Chemical to help those harmed by Bhopal Gas Disaster
This is the letter by the Congress of United States, Washington to Chairman & CEO of Dow Chemical Company, Michigan, requesting that Dow ensures that a representative appear in the ongoing legal cases in India regarding Bhopal, that Dow meets the demands of the survivors for medical and economic rehabilitation, and cleans up the soil and groundwater contamination in and around the factory site.
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Pollution in Bhopal around tragedy site
The Central Pollution Control Board (CPCB) has carried out a study to assess the status of ground water quality and soil characteristics around Bhopal gas accident site in the surroundings of Union Carbide of India Ltd. (UCIL), Bhopal. The CPCB study confirms presence of heavy metals, pesticides and some of the volatile organic compounds in the soil samples and the groundwater.