美国的饮用水分配系统容易受到突发性污染 事件（包括无意和有意）。美国环境保护局 （美国环保局）正在进行研究，以调查广谱在线毒性的使用 配电系统中的监测器（OTM）。这项研究是在早期进行的 位于美国环保局测试与评估（T&E）的预警系统实验室（EWSL） 该设施位于俄亥俄州辛辛那提市，是正在进行的OTM水源研究的一部分 监测和流域管理。OTMs收集的数据提供了水 质量经理提供与水质有关的持续、与时间相关的信息 地位为了进行该测试，一个中试规模的配电系统模拟器（DSS） 可在美国环保局T&E设施与俄亥俄州辛辛那提的EWSL联合使用 习惯于污染物被注入分配系统和来自实验室的采样线 分配系统连接到两个OTM，以监控它们的响应。 明确地 本文介绍了发光细菌费氏弧菌（Vibrio fischeri）的反应 microLAN Toxis（控制系统）和鱼青春痘（包含在bbe中） Moldanke ToxProtect系统）对两种有毒污染物:氟乙酸钠和 在野外条件下使用氰化钾。包括10个参考文献、图表。

Drinking water distribution systems in the U.S. are vulnerable to episodic contamination events (both unintentional and intentional). The U.S. Environmental Protection Agency (USEPA) is conducting research to investigate the use of broad-spectrum online toxicity monitors (OTMs) in distribution systems. This research was conducted at the Early Warning Systems Laboratory (EWSL) located at the USEPA's Test and Evaluation (T&E) Facility in Cincinnati, Ohio and is part of ongoing OTM research for source water monitoring and watershed management. The data collected by the OTMs provides water quality managers with continuous, time-relevant information regarding water quality status. For the purposes of this testing, a pilot-scale distribution system simulator (DSS) available at the USEPA T&E Facility collocated with the EWSL in Cincinnati, Ohio was used. Contaminants were injected into the distribution system and a sample line from the distribution system was connected to two OTMs to monitor their responses. Specifically, this paper presents the responses of luminescence bacteria Vibrio fischeri (as contained in the microLAN Toxcontrol system) and fish Pimephales promelas (as contained in the bbe Moldaenke ToxProtect system) to two toxic contaminants: sodium fluoroacetate and potassium cyanide under field conditions. Includes 10 references, figures.