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首页> 外文期刊>Environmental toxicology and chemistry >THE ACUTE WHOLE EFFLUENT TOXICITY OF STORM WATER FROM AN INTERNATIONAL AIRPORT
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THE ACUTE WHOLE EFFLUENT TOXICITY OF STORM WATER FROM AN INTERNATIONAL AIRPORT

机译：国际机场的暴食水的急性全毒性

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摘要

In October 1990, the U.S. Environmental Protection Agency promulgated application requirements with deadlines for storm-water dischargers associated with industrial activity and certain municipal systems. Major airports have a number of hydrocarbon-based contaminants that could appear in storm-water runoff. In addition, ethylene, diethylene, and propylene glycol deicing and anti-icing mixtures are used during freezing and near-freezing weather. The objective of this study was to characterize the potential acute impact on aquatic life from industrial storm-water discharges from an international airport. Samples from winter storm events caused acute toxicity to both the fathead minnow (Pimephales promelas) and the daphnid (Daphnia magna), with LC50 values for both species as low as 1.0 to 2.0% effluent. The toxicity of the samples was due to the various glycol-based deicer/anti-icer mixtures used during these events. High oxygen demands and elevated total nitrogen levels are other potential problems during anti-icing/deicing activities. Samples from rain events during the nonwinter months at the airport did not cause acute toxicity unless associated with fuel spills. As a result of this study, a new discharge permit has been issued for this airport, requiring the implementation of plans for the collection and recycling and/or disposal of the deicer/anti-icer mixtures.
机译：1990年10月，美国环境保护局颁布了申请要求，规定了与工业活动和某些市政系统有关的雨水排放装置的截止日期。主要机场有许多基于碳氢化合物的污染物，可能会出现在雨水径流中。此外，在冰冻和接近冰冻的天气中，还会使用乙二醇，二甘醇和丙二醇的除冰和防冰混合物。这项研究的目的是描述国际机场工业雨水排放对水生生物的潜在急性影响。冬季风暴事件的样品对黑头fat鱼（Pimephales promelas）和水蚤（Daphnia magna）都产生了急性毒性，两种物种的LC50值均低至1.0％至2.0％。样品的毒性归因于在这些事件中使用的各种基于乙二醇的除冰剂/防冰剂混合物。在除冰/除冰过程中，高需氧量和升高的总氮含量是其他潜在问题。除非与燃油泄漏有关，否则在机场非冬季月份降雨事件中产生的样品不会引起急性毒性。这项研究的结果是，已经为该机场签发了新的排放许可证，要求实施除冰剂/除冰剂混合物的收集，再循环和/或处置计划。

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