A report groundwater arsenic contamination assay in the delta area of West Bengal

Groundwater contaminated with arsenic adds an extra percentage of arsenic load at the time of the different irrigated processes. In an arsenic-contaminated locality, an experimental drinking water contamination study was done on tap water, pump water used for irrigation, hand pump water used for cooking, and drinking in the delta area in West Bengal, Nadia, 24-Parganas (north and south) Hooghly, Bardhaman, suspicious villages and in Kolkata, in Bengal delta.

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GROUNDWATER ARSENIC IN SHALLOW AQUIFERS OF BENGAL DELTA PLAIN (WEST BENGAL): A MICROBIOLOGICAL APPROACH

10.1130/abs/2016am-286096 ◽

2016 ◽

Author(s):

Jishnu Adhikari ◽

◽

Debashis Chatterjee ◽

Shilajit Barua ◽

Thomas R. Kulp

Keyword(s):

West Bengal ◽

Shallow Aquifers ◽

Bengal Delta ◽

Delta Plain ◽

Groundwater Arsenic

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Geospatial assessment of groundwater arsenic contamination in the Holocene aquifers of Bengal Delta from western parts of the Bhaghirathi River in West Bengal, India

Arabian Journal of Geosciences ◽

10.1007/s12517-020-06375-7 ◽

2021 ◽

Vol 14 (3) ◽

Author(s):

Babar Ali Shah ◽

Sunam Chatterjee

Keyword(s):

West Bengal ◽

Arsenic Contamination ◽

The Holocene ◽

Bengal Delta ◽

Groundwater Arsenic

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Reduction in Arsenic Exposure by Domestic Water Purification Devices in Shanghai Area and Related Health Risk Assessment

Water ◽

10.3390/w13202916 ◽

2021 ◽

Vol 13 (20) ◽

pp. 2916

Author(s):

Qin Qin ◽

Hongtao Lu ◽

Zhiliang Zhu ◽

Minghao Sui ◽

Yanling Qiu ◽

...

Keyword(s):

Drinking Water ◽

Water Purification ◽

Water Contamination ◽

Arsenic Removal ◽

Tap Water ◽

Arsenic Exposure ◽

Arsenic Contamination ◽

Domestic Water ◽

Drinking Water Contamination ◽

Household Water

Domestic water purification devices (point-of-use) are important choices for people to deal with sudden drinking water contamination. Especially for sudden heavy metal and arsenic contamination, home water purification units can play a key role as a secondary line of defense. Most of the arsenic removal studies are limited to meeting the requirements of local water quality standards and few studies have been conducted on arsenic removal from household water purifiers. In this paper, the distribution characteristics of arsenic in water at the end of the pipeline network in the Shanghai water supply area have been investigated. Three types of household water purifiers, mainly with membrane separation technology, were selected to treat the simulated arsenic contamination in tap water sources. The effects of pH and inorganic salts on arsenic removal were studied in comparison to the results of coexisting ion concentrations in tap water. The results showed that the total arsenic concentrations in different tap water samples range from 0.479–1.195 µg L−1, which is lower than the limit value for arsenic concentration set by China’s drinking water standard GB 5749–2006 (10 µg L−1) and by the World Health Organization (10 µg L−1). It is found that reverse osmosis and nanofiltration water purifiers were more effective in removing As(V), with removal rate above 97.7%, and less effective in removing As(III), the rate ranging from 40.1 to 56.3%. Preliminary validation was provided for the safety of household water purifiers in securing universal and sudden drinking water contamination. Domestic water purifiers are effective in reducing the risk of arsenic exposure in drinking water.

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Unintentional drinking-water contamination events of unknown origin: surrogate for terrorism preparedness

Journal of Water and Health ◽

10.2166/wh.2008.036 ◽

2008 ◽

Vol 6 (S1) ◽

pp. 11-19 ◽

Cited By ~ 7

Author(s):

Gary Winston ◽

Alex Leventhal

Keyword(s):

Public Health ◽

Drinking Water ◽

Water Contamination ◽

Tap Water ◽

Management Strategies ◽

Unknown Origin ◽

Drinking Water Contamination ◽

Health Crisis ◽

Tel Aviv ◽

Contamination Event

Drinking-water is a direct conduit to many human receptors. An intentional attack (e.g. terrorism) on drinking-water systems can shock and disrupt elements of national infrastructures. We report on an unintentional drinking-water contamination event that occurred in Tel Aviv, Israel in July, 2001. Initially of unknown origin, this event involved risk management strategies used by the Ministry of Health for abating a potential public health crisis as might be envisaged of water contamination due to terrorism. In an abrupt event of unknown origin, public health officials need to be responsible for the same level of preparedness and risk communication. This is emphasized by comparison of management strategies between the Tel Aviv event and one of dire consequences that occurred in Camelford, England in 1988. From the onset of the Tel Aviv incident, the public health strategy was to employ the precautionary principle by warning residents of the affected region to not drink tap water, even if boiled. This strategy was in contrast to an earlier crisis that occurred in Camelford, England in 1988. An outcome of this event was heightened awareness that a water crisis can occur in peacetime and not only in association with terrorism. No matter how minor the contamination event or short-term the disruption of delivery of safe drinking-water, psychological, medical and public health impact could be significant.

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An extensive gastroenteritis outbreak after drinking-water contamination by sewage effluent, Finland

Epidemiology and Infection ◽

10.1017/s0950268810002141 ◽

2010 ◽

Vol 139 (7) ◽

pp. 1105-1113 ◽

Cited By ~ 40

Author(s):

J. LAINE ◽

E. HUOVINEN ◽

M. J. VIRTANEN ◽

M. SNELLMAN ◽

J. LUMIO ◽

...

Keyword(s):

Drinking Water ◽

Water Contamination ◽

Disease Burden ◽

Tap Water ◽

Population Based ◽

Accurate Estimate ◽

Control Population ◽

Gastroenteritis Outbreak ◽

Drinking Water Contamination ◽

Developed Country

SUMMARYAn inappropriate cross-connection between sewage- and drinking-water pipelines contaminated tap water in a Finnish town, resulting in an extensive waterborne gastroenteritis outbreak in this developed country. According to a database and a line-list, altogether 1222 subjects sought medical care as a result of this exposure. Seven pathogens were found in patient samples of those who sought treatment. To establish the true disease burden from this exposure, we undertook a population-based questionnaire investigation with a control population, infrequently used to study waterborne outbreaks. The study covered three areas, contaminated and uncontaminated parts of the town and a control town. An estimated 8453 residents fell ill during the outbreak, the excess number of illnesses being 6501. Attack rates were 53% [95% confidence interval (CI) 49·5–56·4] in the contaminated area, 15·6% (95% CI 13·1–18·5) in the uncontaminated area and 6·5% (95% CI 4·8–8·8) in the control population. Using a control population allowed us to differentiate baseline morbidity from the observed morbidity caused by the water contamination, thus enabling a more accurate estimate of the disease burden of this outbreak.

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