Environmental arsenic contamination and its health effects in a historic gold mining area of the Mangalur greenstone belt of Northeastern Karnataka, India.
Environmental arsenic contamination and its health effects in a historic gold mining area of the Mangalur greenstone belt of Northeastern Karnataka, India.
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DOI：
10.1016/j.jhazmat.2012.10.002
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发表时间：
2013-11-15
影响因子：
13.6
通讯作者：
Das, Kusal K.
中科院分区：
文献类型：
--
作者：
Chakraborti, Dipankar;Rahman, Mohammad Mahmudur;Murrill, Matthew;Das, Reshmi;Siddayya;Patil, S. G.;Sarkar, Atanu;Dadapeer, H. J.;Yendigeri, Saeed;Ahmed, Rishad;Das, Kusal K.
本报告总结了印度卡纳塔克邦曼加鲁尔绿岩带历史性金矿开采活动附近社区环境砷 (As) 污染的最新发现以及由此产生的健康影响。采用 FI-HG-AAS 测定了水、头发、指甲、土壤和食物中的砷含量。土壤元素分析通过 ICP-MS（电感耦合等离子体质谱法）进行测定。 59 个管井水样中，79% 的 As 含量高于 10 μg L−1（最多 303 μg L−1）。在 12 个表土样本中，有 6 个被发现含有超过 2000 mg kg−1 的砷，这可能表明尾矿对该地区的影响。从 171 名居民采集的所有头发和指甲样本中砷含量均升高。在 181 名接受筛查的个体中，58.6% 的人发现砷皮肤损伤。对疑似砷皮肤病症状的穿刺活检进行的组织病理学分析证实了四分之三的患者的诊断。根据社区报告的砷样症状的时间进程以及明显砷中毒的存在，推测研究区域的主要暴露途径是通过受污染的地下水；然而，住宅土壤中已发现的高砷含量也可能是摄入砷的重要来源。需要进行更多研究来确定地质和人为因素对该地区环境砷污染的程度以及相对贡献。据我们所知，这份研究报告是第一份描述印度卡纳塔克邦这一地区以及更广泛的具有潜在绿岩地质和历史采矿活动的地区明显砷中毒的报告之一。
This report summarizes recent findings of environmental arsenic (As) contamination and the consequent health effects in a community located near historic gold mining activities in the Mangalur greenstone belt of Karnataka, India. Arsenic contents in water, hair, nail, soil and food were measured by FI-HG-AAS. Elemental analyses of soils were determined by ICP-MS (inductively coupled plasma-mass spectrometry). Of 59 tube-well water samples, 79% had As above 10 μg L−1 (maximum 303 μg L−1). Of 12 topsoil samples, six were found to contain As greater than 2000 mg kg−1 possibly indicating the impact of mine tailings on the area. All hair and nail samples collected from 171 residents contained elevated As. Arsenical skin lesions were observed among 58.6% of a total 181 screened individuals. Histopathological analysis of puncture biopsies of suspected arsenical dermatological symptoms confirmed the diagnosis in 3 out of 4 patients. Based on the time-course of arsenic-like symptoms reported by the community as well as the presence of overt arsenicosis, it is hypothesized that the primary route of exposure in the study area was via contaminated groundwater; however, the identified high As content in residential soil could also be a significant source of As exposure via ingestion. Additional studies are required to determine the extent as well as the relative contribution of geologic and anthropogenic factors in environmental As contamination in the region. This study report is to our knowledge one of the first to describe overt arsenicosis in this region of Karnataka, India as well as more broadly an area with underlying greenstone geology and historic mining activity.
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DOI：
10.1007/s00254-002-0733-6
发表时间：
2003-05-01
期刊：
ENVIRONMENTAL GEOLOGY
影响因子：
--
作者：
Borba, RP;Figueiredo, BR;Matschullat, J
通讯作者：
Matschullat, J
影响因子：
8.9
作者：
Liu, Chuan-ping;Luo, Chun-ling;Li, Xiang-dong
通讯作者：
Li, Xiang-dong
影响因子：
3.4
作者：
Haffert, Laura;Craw, Dave
通讯作者：
Craw, Dave
影响因子：
10.4
作者：
Hinwood AL;Sim MR;Jolley D;de Klerk N;Bastone EB;Gerostamoulos J;Drummer OH
通讯作者：
Drummer OH
影响因子：
8.3
作者：
Basu, Niladri;Nam, Dong-Ha;Nriagu, Jerome O.
通讯作者：
Nriagu, Jerome O.