Concentrations of pesticides associated with streambed sediment and biofilm in California streams, 2017
Hydrophobic (sediment-associated) pesticides were measured in sediment samples collected from 82 wadeable streams and in biofilm in 54 of those streams in the Central California Foothills and Coastal Mountains ecoregion.115 current-use and 3 legacy pesticides were measured in stream sediment; 93 of the current-use pesticides and the same 3 legacy pesticides were measured in biofilm. On average 4 times as many current-use pesticides were detected in biofilm at a site (median of 2) as in sediment (median of 0.5). This data release provides data for the pesticide concentrations, information on the pesticide compounds, and input data and R scripts for statistical models used in the analysis presented in the journal article "Biofilms provide new insight into pesticide occurrence in streams and links to aquatic ecological communities," by BJ Mahler, TS Schmidt, LH Nowell, SL Qi, PC Van Metre, ML Hladik, DM Carlisle, MD Munn, and J May, http://doi.org/10.1021/acs.est.9b07430.
Citation Information
| Publication Year | 2020 |
|---|---|
| Title | Concentrations of pesticides associated with streambed sediment and biofilm in California streams, 2017 |
| DOI | 10.5066/P9YYD8DI |
| Authors | Barbara J Mahler, Travis S Schmidt, Sharon L Qi, Peter C VanMetre |
| Product Type | Data Release |
| Record Source | USGS Digital Object Identifier Catalog |
| USGS Organization | Oklahoma-Texas Water Science Center – Austin, TX Office |
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Biofilms provide new insight into pesticide occurrence in streams and links to aquatic ecological communities
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Biofilms provide new insight into pesticide occurrence in streams and links to aquatic ecological communities
Streambed sediment is commonly analyzed to assess occurrence of hydrophobic pesticides and risks to aquatic communities. However, stream biofilms also have the potential to accumulate pesticides and may be consumed by aquatic organisms. To better characterize risks to aquatic life, the U.S. Geological Survey Regional Stream Quality Assessment measured 93 current-use and 3 legacy pesticides in bedAuthorsBarbara Mahler, Travis S. Schmidt, Lisa H. Nowell, Sharon L. Qi, Peter C. Van Metre, Michelle Hladik, Daren M. Carlisle, Mark D. Munn, Jason May - Connect
Peter C Van Metre (Former Employee)
Research Hydrologist