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首页> 外文期刊>Environmental Science & Technology >Source Water Characteristics and Building-specific Factors Influence Corrosion and Point of Use Water Quality in a Decentralized Arctic Drinking Water System
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Source Water Characteristics and Building-specific Factors Influence Corrosion and Point of Use Water Quality in a Decentralized Arctic Drinking Water System

机译：分散式北极饮用水系统中的水源水特征和建筑物特定因素影响腐蚀和使用点水质

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摘要

Access to clean and safe drinking water is a perpetual concern in Arctic communities because of challenging climatic conditions, limited options for the transportation of equipment and process chemicals, and the ongoing effects of colonialism. Water samples were gathered from multiple locations in a decentralized trucked drinking water system in Nunavut, Canada, over the course of one year. The results indicate that point of use drinking water quality was impacted by conditions in the source water and in individual buildings and strongly suggest that lead and copper measured at the tap were related to corrosion of onsite premise plumbing components. Humic-like substances were the dominant organic fraction in all samples, as determined by regional integration of fluorescence data. Iron and manganese levels in the source water and throughout the water system were higher in the winter and lower in the summer months. Elevated concentrations of copper (＞2000 μg L~(-1)) and lead (＞5 μg L~(-1)) were detected in tap water from some buildings. Field flow fractionation coupled with inductively coupled plasma mass spectrometry and ultraviolet-visible spectrometry was used to demonstrate the link between source water characteristics (high organics, iron and manganese) and lead and copper in point of use drinking water.
机译：由于挑战性的气候条件，设备和加工化学品的运输选择有限以及殖民主义的持续影响，在北极社区，长期获得清洁和安全的饮用水一直是人们关注的问题。在一年的时间内，从加拿大努纳武特的分散式卡车饮用水系统的多个位置收集了水样。结果表明，饮用水的使用点受到源水和单个建筑物中条件的影响，并强烈暗示在水龙头处测得的铅和铜与现场自来水管道组件的腐蚀有关。通过荧光数据的区域积分确定，腐殖质样物质是所有样品中的主要有机组分。来源水和整个水系统中的铁和锰含量在冬季较高，而在夏季较低。在一些建筑物的自来水中检测到高浓度的铜（> 2000μgL〜（-1））和铅（> 5μgL〜（-1））。场流分级分离，电感耦合等离子体质谱法和紫外可见光谱法被用于证明饮用水使用中源水特征（高有机物，铁和锰）与铅和铜之间的联系。

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