Microbiological water quality in a decentralized Arctic drinking water system,Environmental Science: Water Research & Technology

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Microbiological water quality in a decentralized Arctic drinking water system
Environmental Science: Water Research & Technology ( IF 3.5 ) Pub Date : 2020-05-28 , DOI: 10.1039/d0ew00019a
Stephanie L. Gora _{1,

2,

3,

4} , Tim Anaviapik Soucie _{4,

5,

6} , Nicole E. McCormick _{1,

2,

3,

4} , C. Carolina Ontiveros _{1,

2,

3,

4} , Vincent L'Hérault _{4,

7,

8} , Megan Gavin _{4,

9,

10} , Benjamin F. Trueman _{1,

2,

3,

4} , Jessica Campbell _{1,

2,

3,

4,

11} , Amina K. Stoddart _{1,

2,

3,

4} , Graham A. Gagnon _{1,

2,

3,

4}

Affiliation

Drinking water samples were collected from the water source, water delivery truck, domestic water storage tanks, and at the point of use in a decentralized drinking water system in Pond Inlet, Nunavut, a predominantly Inuit community in Canada's Arctic region. The samples were analyzed for standard water quality parameters (turbidity, colour, pH, conductivity), biological water quality parameters (coliforms, adenosine triphosphate), and free and total chlorine. The microbial communities in a subset of water and biofilm samples were characterized with DNA analysis. Physiochemical characteristics at the tap were influenced by source water quality and building-specific conditions. Multiple aesthetic water quality parameters were above recommended values including turbidity and colour. Turbidity and biological activity (measured as cellular ATP) varied temporally in some locations. DNA analysis at the phylum, family, and genus level demonstrated that microbial ecology evolved from source water to tap and that individual storage tanks and taps were influenced by distinct microbial communities.

中文翻译：

北极分散饮水系统中的微生物水质

从水源，输水车，家用储水箱中收集饮用水样品，并在使用时使用了加拿大北极地区因纽特人社区努纳武特的Pond Inlet分散式饮用水系统。分析了样品的标准水质参数（浊度，颜色，pH，电导率），生物水质参数（大肠菌群，三磷酸腺苷）以及游离氯和总氯。用DNA分析对水和生物膜样品的一部分中的微生物群落进行了表征。水龙头的理化特性受水源水质和建筑物特定条件的影响。多个美学水质参数均高于建议值，包括浊度和颜色。在某些位置，浊度和生物活性（以细胞ATP衡量）随时间变化。在门，科和属水平的DNA分析表明，微生物生态学从水源发展到自来水，各个储罐和水龙头受到不同微生物群落的影响。

更新日期：2020-07-02

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