分布式环境污染之间的联系 水与运行维护的发生 配电系统（DSs）中的（O&M）活动 主要是基于导致 水传播疾病暴发。这也是可能的 了解报告疫情的比例，尤其是 在美国，这可以归因于DS缺陷。 然而，在没有疾病的情况下 疫情暴发后，供水企业可能会面临疾病 水质变化，如大肠菌群的出现- 阳性样本，异养发生率 细菌计数和客户投诉。不 对这些水质成分的具体研究 源于DS活动的事件已被编译。 本研究采用数据集成方法 基于对不同类型 历史数据库是验证和更新历史数据库的第一步 建立这样的联系。分析表明，O&M 这些活动可能与当地的水质变化有关 不同的比例，以及 确定水质变化（例如管道更换 以及阀门和消防栓操作）。供水商 可以应用数据集成的概念来评估 他们自己的系统。包括21个参考文献、表格和图表。

The link between the contamination of distributed water and the occurrence of operations and maintenance (O&M) activities in distribution systems (DSs) has mostly been based on specific cases resulting in waterborne disease outbreaks. It has also been possible to know the fraction of reported outbreaks, particularly in the United States, that can be attributed to DS deficiencies. However, without being in a situation of disease outbreak, water utilities can be faced with DS water quality variations such as the occurrence of coliform- positive samples, occurrences of heterotrophic plate count bacteria, and customer complaints. No specific study of the fraction of these water quality events originating from DS activities has been compiled. This research, using a data integration approach based on the simultaneous study of different types of historical databases, is a first step toward verifying and establishing such a link. The analysis shows that O&M activities can be related to water quality variations in various proportions, and some of the main causes of water quality changes are identified (e.g., pipe replacement and valve and hydrant operation). Water suppliers can apply this concept of data integration to assess their own systems. Includes 21 references, tables, figures.