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Urban Stormwater: An Overlooked Pathway of Extensive Mixed Contaminants to Surface and Groundwaters in the United States.
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2019-08-21 , DOI: 10.1021/acs.est.9b02867 Jason R Masoner 1 , Dana W Kolpin 2 , Isabelle M Cozzarelli 3 , Larry B Barber 4 , David S Burden 5 , William T Foreman 6 , Kenneth J Forshay 5 , Edward T Furlong 6 , Justin F Groves 5 , Michelle L Hladik 7 , Matthew E Hopton 8 , Jeanne B Jaeschke 3 , Steffanie H Keefe 4 , David P Krabbenhoft 9 , Richard Lowrance 5 , Kristin M Romanok 10 , David L Rus 11 , William R Selbig 9 , Brianna H Williams 10 , Paul M Bradley 12
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2019-08-21 , DOI: 10.1021/acs.est.9b02867 Jason R Masoner 1 , Dana W Kolpin 2 , Isabelle M Cozzarelli 3 , Larry B Barber 4 , David S Burden 5 , William T Foreman 6 , Kenneth J Forshay 5 , Edward T Furlong 6 , Justin F Groves 5 , Michelle L Hladik 7 , Matthew E Hopton 8 , Jeanne B Jaeschke 3 , Steffanie H Keefe 4 , David P Krabbenhoft 9 , Richard Lowrance 5 , Kristin M Romanok 10 , David L Rus 11 , William R Selbig 9 , Brianna H Williams 10 , Paul M Bradley 12
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Increasing global reliance on stormwater control measures to reduce discharge to surface water, increase groundwater recharge, and minimize contaminant delivery to receiving waterbodies necessitates improved understanding of stormwater–contaminant profiles. A multiagency study of organic and inorganic chemicals in urban stormwater from 50 runoff events at 21 sites across the United States demonstrated that stormwater transports substantial mixtures of polycyclic aromatic hydrocarbons, bioactive contaminants (pesticides and pharmaceuticals), and other organic chemicals known or suspected to pose environmental health concern. Numerous organic-chemical detections per site (median number of chemicals detected = 73), individual concentrations exceeding 10 000 ng/L, and cumulative concentrations up to 263 000 ng/L suggested concern for potential environmental effects during runoff events. Organic concentrations, loads, and yields were positively correlated with impervious surfaces and highly developed urban catchments. Episodic storm-event organic concentrations and loads were comparable to and often exceeded those of daily wastewater plant discharges. Inorganic chemical concentrations were generally dilute in concentration and did not exceed chronic aquatic life criteria. Methylmercury was measured in 90% of samples with concentrations that ranged from 0.05 to 1.0 ng/L.
中文翻译：
城市雨水：美国地表水和地下水中广泛混合污染物被忽视的途径。
全球越来越依赖雨水控制措施来减少向地表水的排放，增加地下水补给，并最大限度地减少污染物向受纳水体的输送，因此需要加深对雨水污染物概况的了解。一项多机构研究对美国 21 个地点的 50 次径流事件中的城市雨水中的有机和无机化学物质进行了研究，结果表明，雨水输送了大量的多环芳烃、生物活性污染物（农药和药物）以及其他已知或疑似构成的有机化学物质的混合物。环境健康关注。每个地点检测到大量有机化学物质（检测到的化学物质中位数 = 73），个体浓度超过 10 000 ng/L，累积浓度高达 263 000 ng/L，表明人们担心径流事件期间潜在的环境影响。有机浓度、负荷和产量与不透水表面和高度发达的城市流域呈正相关。偶发风暴事件的有机浓度和负荷与日常废水处理厂排放的相当，并且常常超过。无机化学物质浓度一般较稀，未超过慢性水生生物标准。 90% 的样品中检测到甲基汞，浓度范围为 0.05 至 1.0 ng/L。
更新日期：2019-08-21
中文翻译：
城市雨水：美国地表水和地下水中广泛混合污染物被忽视的途径。
全球越来越依赖雨水控制措施来减少向地表水的排放，增加地下水补给，并最大限度地减少污染物向受纳水体的输送，因此需要加深对雨水污染物概况的了解。一项多机构研究对美国 21 个地点的 50 次径流事件中的城市雨水中的有机和无机化学物质进行了研究，结果表明，雨水输送了大量的多环芳烃、生物活性污染物（农药和药物）以及其他已知或疑似构成的有机化学物质的混合物。环境健康关注。每个地点检测到大量有机化学物质（检测到的化学物质中位数 = 73），个体浓度超过 10 000 ng/L，累积浓度高达 263 000 ng/L，表明人们担心径流事件期间潜在的环境影响。有机浓度、负荷和产量与不透水表面和高度发达的城市流域呈正相关。偶发风暴事件的有机浓度和负荷与日常废水处理厂排放的相当，并且常常超过。无机化学物质浓度一般较稀，未超过慢性水生生物标准。 90% 的样品中检测到甲基汞，浓度范围为 0.05 至 1.0 ng/L。
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