Expanded Target-Chemical Analysis Reveals Extensive Mixed-Organic-Contaminant Exposure in U.S. Streams
| Autor: | Dana W. Kolpin, Michael T. Meyer, Daniel K. Jones, Edward T. Furlong, James L. Orlando, Timothy J. Reilly, Kathryn M. Kuivila, Keith A. Loftin, Kristin M. Romanok, Michelle L. Hladik, Luke R. Iwanowicz, Larry B. Barber, Kelly L. Smalling, William T. Foreman, Daniel L. Villeneuve, Marc A. Mills, Herbert T. Buxton, Paul M. Bradley, Susan T. Glassmeyer, Celeste A. Journey |
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| Rok vydání: | 2017 |
| Předmět: |
010504 meteorology & atmospheric sciences
Pesticide residue General Chemistry 010501 environmental sciences Pesticide Contamination Wastewater 01 natural sciences Article Triclosan chemistry.chemical_compound Dieldrin chemistry Rivers Environmental chemistry Environmental Chemistry Atrazine Chlorpyrifos Pesticides Metolachlor Water Pollutants Chemical 0105 earth and related environmental sciences Environmental Monitoring |
| Zdroj: | Environmental sciencetechnology. 51(9) |
| ISSN: | 1520-5851 |
| Popis: | Surface water from 38 streams nationwide was assessed using 14 target-organic methods (719 compounds). Designed-bioactive anthropogenic contaminants (biocides, pharmaceuticals) comprised 57% of 406 organics detected at least once. The 10 most-frequently detected anthropogenic-organics included 8 pesticides (desulfinylfipronil, AMPA, chlorpyrifos, dieldrin, metolachlor, atrazine, CIAT, glyphosate) and 2 pharmaceuticals (caffeine, metformin) with detection frequencies ranging 66–84% of all sites. Detected contaminant concentrations varied from less than 1 ng L−1 to greater than 10 μg L−1, with 77 and 278 having median detected concentrations greater than 100 ng L−1 and 10 ng L−1, respectively. Cumulative detections and concentrations ranged 4-161 compounds (median 70) and 8.5–102,847 ng L−1, respectively, and correlated significantly with wastewater discharge, watershed development, and Toxic Release Inventory metrics. Log10 concentrations of widely monitored HHCB, triclosan, and carbamazepine explained 71%–82% of the variability in the total number of compounds detected (linear regression; p-values |
| Databáze: | OpenAIRE |
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