Arsenic groundwater contamination in Middle Ganga Plain, Bihar, India: a future danger?
Arsenic groundwater contamination in Middle Ganga Plain, Bihar, India: a future danger?
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DOI：
10.1289/ehp.5966
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发表时间：
2003-07
影响因子：
10.4
通讯作者：
Basu GK
中科院分区：
文献类型：
--
作者：
Chakraborti D;Mukherjee SC;Pati S;Sengupta MK;Rahman MM;Chowdhury UK;Lodh D;Chanda CR;Chakraborti AK;Basu GK
尽管早期调查报告显示，印度西孟加拉和整个孟加拉国的地下水受到砷污染，但人们认为砷中毒大流行仅限于恒河三角洲（恒河下游平原）。西北部上恒河平原的昌迪加尔联邦领地及其周边地区以及尼泊尔德赖地区最近的调查结果。关于村民砷皮肤损伤的传闻报告使我们评估了比哈尔邦中恒河平原的Semria Ojha Patti村的砷暴露和后遗症，大约20年前，这里的管井威尔斯取代了挖的威尔斯。对206口威尔斯管井（占总数的95%）砷含量的分析表明，56.8%的管井砷浓度超过50微克/升，19.9%的管井砷浓度超过300微克/升，该浓度预示着明显的砷性皮肤损伤。在对550名自我选择的样本（390名成人和160名儿童）进行医学检查时，13%的成人和6.3%的儿童患有典型的皮肤病变，除了极端暴露和营养不良之外，儿童的发病率异常高。尿、头发和指甲中的砷浓度与饮用水中砷浓度显著相关（r = 0.72-0.77），最高可达1，654微克/升。在神经系统检查中，63%的成年人被诊断为砷典型神经病，以前只在严重的亚急性暴露中发现这种患病率。我们还观察到，在饮用水中砷浓度最高的妇女中，胎儿丢失和早产率明显增加。恒河中、上平原其他地点地下水受污染的可能性值得调查。
The pandemic of arsenic poisoning due to contaminated groundwater in West Bengal, India, and all of Bangladesh has been thought to be limited to the Ganges Delta (the Lower Ganga Plain), despite early survey reports of arsenic contamination in groundwater in the Union Territory of Chandigarh and its surroundings in the northwestern Upper Ganga Plain and recent findings in the Terai area of Nepal. Anecdotal reports of arsenical skin lesions in villagers led us to evaluate arsenic exposure and sequelae in the Semria Ojha Patti village in the Middle Ganga Plain, Bihar, where tube wells replaced dug wells about 20 years ago. Analyses of the arsenic content of 206 tube wells (95% of the total) showed that 56.8% exceeded arsenic concentrations of 50 micro g/L, with 19.9% > 300 micro g/L, the concentration predicting overt arsenical skin lesions. On medical examination of a self-selected sample of 550 (390 adults and 160 children), 13% of the adults and 6.3% of the children had typical skin lesions, an unusually high involvement for children, except in extreme exposures combined with malnutrition. The urine, hair, and nail concentrations of arsenic correlated significantly (r = 0.72-0.77) with drinking water arsenic concentrations up to 1,654 micro g/L. On neurologic examination, arsenic-typical neuropathy was diagnosed in 63% of the adults, a prevalence previously seen only in severe, subacute exposures. We also observed an apparent increase in fetal loss and premature delivery in the women with the highest concentrations of arsenic in their drinking water. The possibility of contaminated groundwater at other sites in the Middle and Upper Ganga Plain merits investigation.
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影响因子：
4.2
作者：
Das, D;Samanta, G;Chakraborti, D
通讯作者：
Chakraborti, D
DOI：
10.1007/s002540000107
发表时间：
2000-09-01
期刊：
ENVIRONMENTAL GEOLOGY
影响因子：
--
作者：
Acharyya, SK;Lahiri, S;Bhowmik, A
通讯作者：
Bhowmik, A
影响因子：
64.8
作者：
Acharyya, SK;Chakraborty, P;Bhowmik, A
通讯作者：
Bhowmik, A
影响因子：
10.4
作者：
Ahmad, SA;Sayed, SU;Talukder, HK
通讯作者：
Talukder, HK
影响因子：
4.2
作者：
CHATTERJEE, A;DAS, D;CHAKRABORTI, D
通讯作者：
CHAKRABORTI, D