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首页> 外文期刊>International Journal of Environmental Research and Public Health >Assessing Health Risk due to Exposure to Arsenic in Drinking Water in Hanam Province, Vietnam
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Assessing Health Risk due to Exposure to Arsenic in Drinking Water in Hanam Province, Vietnam

机译：评估越南哈纳姆省因饮用水中砷暴露造成的健康风险

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摘要

We assessed health risks related to Arsenic (As) in contaminated drinking water in Hanam, applying the Australian Environmental Health Risk Assessment Framework, which promotes stakeholder involvement in risk assessments. As concentrations in 300 tube-well water samples, before and after filtration, were analyzed and the water consumption levels in 150 households were estimated. Skin cancer risk was characterized using Cancer Slope Factor index and lifetime average daily dose with a probabilistic approach. The results showed that arsenic concentrations in tube-well water ranged from 8–579 ppb (mean 301 ppb) before filtration and current sand filters used by the households did not meet the standard for As removal. Arsenic daily consumption of 40% of the adults exceeded the level of TDI (Tolerable Daily Intake) at 1 μg/kg/day. The average skin cancer risk in adults due to consuming filtered tube-well water for drinking purpose were 25.3 × 10?5 (using only well water) and 7.6 × 10?5 (using both well and rain water). The skin cancer risk would be 11.5 times higher if the water was not filtered. Improvement of filtration measures or the replacement of the current drinking water sources to minimize the health risks to the local population is urgently needed.
机译：我们使用澳大利亚环境健康风险评估框架，评估了哈纳姆受污染饮用水中砷（As）的健康风险，该框架促进了利益相关者参与风险评估。在过滤之前和之后，对300个管井水样中的浓度进行了分析，并估算了150户家庭的用水量。使用癌症斜率因子指数和终生平均日剂量以及概率方法来表征皮肤癌风险。结果表明，在进行过滤之前，管井水中砷的浓度范围为8–579 ppb（平均301 ppb），并且家庭使用的当前砂滤池不满足As去除标准。 40％的成年人每天的砷摄入量超过TDI（可耐受的每日摄入量）水平，为1μg/ kg /天。由于饮用过滤后的管井水作饮用，因此成年人的平均皮肤癌风险为25.3×10？5（仅使用井水）和7.6×10？5（同时使用井水和雨水）。如果不过滤水，皮肤癌的风险将高出11.5倍。迫切需要改进过滤措施或更换当前的饮用水源，以最大程度地减少对当地居民的健康风险。

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