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首页> 外文期刊>Canadian Water Resources Journal >A decade of drinking water advisories: Historical evidence of frequency, duration and causes
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A decade of drinking water advisories: Historical evidence of frequency, duration and causes

机译：十年的饮用水咨询：频率，持续时间和原因的历史证据

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摘要

Maintaining acceptable drinking water quality is a challenge in Canadian First Nations communities, resulting in many residents experiencing frequent drinking water advisories (DWAs). Detailed information about drinking water systems on reserves was combined with 11 years of advisory data to consolidate existing data sets and to understand historical trends. Patterns related to the frequency, duration and causes of advisories are summarized. The results show that the total number of DWAs has increased over the last decade despite recent attention, policy renewal and funding commitments. The frequency and duration of DWAs vary according to location, source type, system size and operator certification. Facilities relying on surface water have a higher likelihood of experiencing DWAs, and systems without fully trained operators are more likely to experience long-lasting DWAs. Findings indicate the need exists to maintain an up-to-date record of First Nations system information to close existing data gaps.
机译：在加拿大原住民社区中，保持可接受的饮用水质量是一项挑战，导致许多居民经常遇到饮用水咨询（DWA）。有关储备中饮用水系统的详细信息与11年的咨询数据相结合，以巩固现有数据集并了解历史趋势。总结了与咨询的频率，持续时间和原因相关的模式。结果表明，尽管最近受到关注，政策更新和资金投入，但过去十年来DWA的总数有所增加。 DWA的频率和持续时间根据位置，源类型，系统大小和操作员认证而有所不同。依赖地表水的设施更有可能发生DWA，而没有经过充分培训的操作员的系统则更有可能经历长期的DWA。调查结果表明，有必要保持原住民系统信息的最新记录，以弥补现有的数据空白。

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