Urban Stormwater: An Overlooked Pathway of Extensive Mixed Contaminants to Surface and Groundwaters in the United States
| Autor: | Paul M. Bradley, Brianna Williams, Edward T. Furlong, David L. Rus, David S. Burden, David P. Krabbenhoft, Kristin M. Romanok, Matthew E. Hopton, Michelle L. Hladik, William R. Selbig, Jason R. Masoner, Kenneth J. Forshay, Isabelle M. Cozzarelli, William T. Foreman, Richard Lowrance, Dana W. Kolpin, Steffanie H. Keefe, Larry B. Barber, Jeanne B. Jaeschke, Justin F. Groves |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Rain
Water pollutants Stormwater Environmental engineering General Chemistry Groundwater recharge 010501 environmental sciences Contamination 01 natural sciences United States Article Environmental monitoring Environmental Chemistry Environmental science Pesticides Polycyclic Aromatic Hydrocarbons Groundwater Surface water Water Pollutants Chemical Environmental Monitoring 0105 earth and related environmental sciences |
| Zdroj: | Environmental science & technology |
| ISSN: | 1520-5851 0013-936X |
| DOI: | 10.1021/acs.est.9b02867 |
| Popis: | Increasing global reliance on stormwater control measures to reduce discharge to surface water, increase groundwater recharge, and minimize contaminant delivery to receiving water-bodies 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. Graphical Abstract |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|