Arsenic toxicity of groundwater in parts of the Bengal basin in India and Bangladesh: the role of Quaternary stratigraphy and Holocene sea-level fluctuation

Acharyya, S. K.; Lahiri, S.; Raymahashay, B. C.; Bhowmik, A.

doi:10.1007/s002540000107

Cited by 342 publications

(158 citation statements)

References 12 publications

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“…Which release arsenic into liquid phase? It has been inferred that reduction dissolution of iron oxides is a primary cause of arsenic release from aquifer sediments 12 which is represented in Fig.-1. The symptoms of arsenicosis depend on the quantity ingested coupled with the nutritional status and immunity of person and may appear in 6-2 years or more.…”

Section: Introductionmentioning

confidence: 99%

"Geological Contamination of Arsenic in Ground Water: A Review"

2017

RJC

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The quest for the stability of life has lead mankind to play with his own life by poisoning his body in the name of fertilizers, herbicides, and pesticides. The drive for higher yield has ultimately poisoned the land making it redundant for time uncalculated. But man did not stop here. He went on to harvest the underground resources at a speed which only spells of greed. This greed resulted in not just the depletion of resources but also poisoning them to a level that turned it carcinogenic. Arsenic poisoning is posing a huge menace for the mankind and rapid industrialization may culminate in the extinction of mankind himself. It is the time that steps are taken to curb and control this menace.

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Section: Introductionmentioning

confidence: 99%

"Geological Contamination of Arsenic in Ground Water: A Review"

2017

RJC

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“…Nevertheless, the processes leading to the release of arsenic in groundwater aquifer are not yet fully understood. The literature synthesis indicates various hypothesis concerning the release of arsenic 1) by oxidation of arsenic-bearing pyrite [9]- [11], 2) by competitive exchange of phosphate from fertilizers [12] and 3) by reduction of iron hydroxides under anoxic conditions [13] [14]. Our study, however, provides a baseline of groundwater quality in BV using the current ongoing research results and literature synthesis addressing the source and origin, trend, and pattern of contamination in BV aquifer.…”

Section: Introductionmentioning

confidence: 99%

The Source of Arsenic and Nitrate in Borrego Valley Groundwater Aquifer

Rezaie-Boroon¹,

Chaney²,

Bowers³

2014

JWARP

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“…Arsenic-contaminated groundwater used for drinking and cooking is the cause of health problems such as keratosis and cancers reported in Bangladesh and the West Bengal area of India (Acharyya et al, 2000;Akai et al, 2004;Burgess et al, 2010;Das et al, 1996;Dowling et al, 2002;Nickson et al, 2000). Although the source of contamination is believed to be natural, cases elsewhere such as those reported in Thailand, Ghana and some areas of the United States were due to the improper disposal of contaminated soil or rock from mining activities (Bowell, 1993;Choprapawon and Rodcline, 1997;Welch et al, 1999;Williams, 1997).…”

Section: Introductionmentioning

confidence: 99%

The roles of pyrite and calcite in the mobilization of arsenic and lead from hydrothermally altered rocks excavated in Hokkaido, Japan

Tabelin¹,

Igarashi²,

Tamoto³

et al. 2012

Journal of Geochemical Exploration

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This paper describes the enrichment of hydrothermally altered volcanic and sedimentary rocks with arsenic (As) and lead (Pb), and the effects of pyrite and calcite on the mobilities and release mechanisms of these toxic elements under oxic and anoxic conditions. Enrichment of the altered rock with As and Pb predominantly occurred in precipitated pyrite grains and not on the alumino-silicate minerals making up the matrix of the rock. Arsenic was incorporated in pyrite grains formed during alteration in both volcanic and sedimentary rocks, but Pb was only found in the pyrite grains of the volcanic rock samples. When in contact with water, altered volcanic rocks had acidic pH while altered sedimentary rocks had alkaline pH. The mobilities of both As and Pb from the altered rocks were enhanced at acidic and alkaline pH and a minimum was observed in the circumneutral pH under both oxic and anoxic conditions. The absence of O 2 retarded the oxidation of pyrite most notably in the alkaline region but not in the acidic and circumneutral pH. The absence of CO 2 increased the pH of samples with significant calcite content but did not affect those containing substantial amounts of pyrite. Increasing the CO 2 also had insignificant effect on the concentrations of As and Pb in the leachate. The mechanisms controlling the mobilization of As and Pb from these rocks like dissolution of soluble secondary minerals, pyrite oxidation and adsorption were all related to pyrite while the pH of the rock when in contact with water was controlled by pyrite and calcite. Thus, excavated waste rocks that have been altered can be grouped based on the relative abundance of pyrite and calcite and their pH when in contact with water.

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Arsenic toxicity of groundwater in parts of the Bengal basin in India and Bangladesh: the role of Quaternary stratigraphy and Holocene sea-level fluctuation

Cited by 342 publications

References 12 publications

"Geological Contamination of Arsenic in Ground Water: A Review"

"Geological Contamination of Arsenic in Ground Water: A Review"

The Source of Arsenic and Nitrate in Borrego Valley Groundwater Aquifer

The roles of pyrite and calcite in the mobilization of arsenic and lead from hydrothermally altered rocks excavated in Hokkaido, Japan

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