Chemical risks in drinking water of inhabitants in the basin of the Tonle Sap Great Lake

IF 2.5 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Kongkea Phan, Sophanith Hoeng, Samnang Phin, Noreaksatya The, Tharith Sriv, Vibol Sao, Chan Oeurn Chey
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Abstract

Abstract The present study aimed to assess chemical risks in the drinking water of inhabitants in the basin of the Tonle Sap Great Lake. Water samples from tube wells (n = 52), dug wells (n = 13), stored rain water (n = 39), ponds/lakes (n = 19), canals/rivers (n = 24), and household pipe water (n = 45) were collected and analyzed for physicochemical properties, as well as microbial and chemical qualities using standard methods. Analytical results revealed that 42.1% of tube wells had As > 10 μg L−1 while 8.3% had Cr > 0.05 mg L−1. Concurrently, 55.2 and 11.8% of tube wells had Cd > 3.00 μg L–1 and Pb > 10 μg L−1, respectively. Moreover, 35.0% of pipe water had Fe > 0.3 mg L−1, whereas 85.7% of tube wells and 69.2% of dug wells had Mn > 0.1 mg L−1. All water sources including pipe water could pose risks of non-carcinogenic effects of chemical mixtures to all exposure groups through their drinking water pathway. Children were at a higher risk of chemical mixtures in their drinking water than adults. This study suggests that advanced treatment technologies should be applied to the current water treatment plants to provide inhabitants with safe drinking water.
洞里萨湖流域居民饮用水中的化学物质风险
摘要本研究旨在评估洞里萨湖流域居民饮用水中的化学物质风险。从管井(n = 52)、挖井(n = 13)、储存雨水(n = 39)、池塘/湖泊(n = 19)、运河/河流(n = 24)和家庭管道水(n = 45)中收集水样,并使用标准方法分析其理化性质、微生物和化学性质。分析结果显示,42.1%的管井存在As >10 μg L−1,8.3% Cr;0.05 mg L−1。同时,55.2和11.8%的管井存在Cd;3.00 μg L-1和Pb >10 μg L−1。此外,35.0%的管道水含铁;为0.3 mg L−1,而85.7%的管井和69.2%的挖井为Mn >0.1 mg L−1。包括管道水在内的所有水源都可能通过其饮用水途径对所有接触群体构成化学混合物的非致癌影响风险。儿童的饮用水中含有化学混合物的风险高于成人。本研究建议在现有的水处理厂采用先进的处理技术,为居民提供安全的饮用水。
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来源期刊
Journal of water and health
Journal of water and health 环境科学-环境科学
CiteScore
3.60
自引率
8.70%
发文量
110
审稿时长
18-36 weeks
期刊介绍: Journal of Water and Health is a peer-reviewed journal devoted to the dissemination of information on the health implications and control of waterborne microorganisms and chemical substances in the broadest sense for developing and developed countries worldwide. This is to include microbial toxins, chemical quality and the aesthetic qualities of water.
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