Sources of low-arsenic groundwater in the Bengal Basin: investigating the influence of the last glacial maximum palaeosol using a 115-km traverse across Bangladesh
Sources of low-arsenic groundwater in the Bengal Basin: investigating the influence of the last glacial maximum palaeosol using a 115-km traverse across Bangladesh
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孟加拉盆地低砷地下水来源:通过穿越孟加拉国 115 公里来调查末次盛冰期古土壤的影响
DOI:
10.1007/s10040-014-1139-8
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发表时间:
2014
影响因子:
2.8
通讯作者:
Hoque M
中科院分区:
文献类型:
--
作者:
Hoque M
Pollution of groundwater in the Bengal Basin (Bangladesh and West Bengal, India) by arsenic (As) puts at risk the health of more than 100 million consumers. Using 1,580 borehole lithological logs and published hydrochemistry on 2,387 wells, it was predicted that low-As (<10 μg/L) groundwater exists, in palaeo-interfluvial aquifers of brown sand capped by a protective palaeosol, beneath at least 45,000 km2 of the Bengal Basin. The aquifers were predicted to be at a depth of as little as 25 m below ground level (mbgl), and typically no more than 50 mbgl. The predictions were confirmed along an east–west traverse 115 km in length (i.e. across half of Bangladesh) by drilling 28 new boreholes to 91-m depth to reveal subsurface sedimentology, and by mapping As distribution in groundwater. The aquifers identified occur at typically <40 mbgl and so are accessible with local drilling methods. A protective palaeosol that caps the palaeo-interfluvial aquifers prevents downward movement into them of As-polluted groundwater present in shallower palaeo-channel aquifers and ensures that the palaeo-interfluvial aquifers will yield low-As groundwater for the foreseeable future. Their use, in place of the shallower As-polluted palaeo-channel aquifers, would rapidly mitigate the health risks from consumption of As-polluted groundwater.
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影响因子:
11.4
作者:
J. McArthur;B. Nath;D. M. Banerjee;R. Purohit;N. Grassineau
通讯作者:
J. McArthur;B. Nath;D. M. Banerjee;R. Purohit;N. Grassineau
DOI:
--
发表时间:
2007
期刊:
The Lancet Oncology
影响因子:
--
作者:
M. Jakariya;M. Vahter;Mahfuzar Rahman;M. Wahed;S. K. Hore;Prosun Bhattacharya;G. Jacks;L. Persson
通讯作者:
L. Persson
影响因子:
11.4
作者:
McArthur, J. M.;Sikdar, P. K.;Banerjee, D. M.
通讯作者:
Banerjee, D. M.
影响因子:
9.2
作者:
Russell D. Pate;S. Goodbred;Sirajur R. Khan
通讯作者:
Sirajur R. Khan
影响因子:
11.1
作者:
Allan H. Smith;Elena O Lingas;Mahfuzar Rahman
通讯作者:
Allan H. Smith;Elena O Lingas;Mahfuzar Rahman