Concentrations of pesticides in sediment in 82 streams and in biofilms in 54 streams in California in 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://dx.doi.org/xxxxxxxx.

Data and Resources

Field Value
accessLevel public
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identifier USGS:5dfa73fee4b0cdded73d1b4f
metadata_type geospatial
modified 20200827
old-spatial -123.7994, 34.5495, -119.2195, 38.6641
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash aae23275c57ef4fc0addd7db292426276777ab8a
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spatial {"type": "Polygon", "coordinates": [[[-123.7994, 34.5495], [-123.7994, 38.6641], [ -119.2195, 38.6641], [ -119.2195, 34.5495], [-123.7994, 34.5495]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • biofilm
  • biota
  • california
  • central-california-coastal
  • ckan
  • geo
  • geoss
  • national
  • north-america
  • pesticide
  • sediment
  • stream
  • united-states
  • usgs-5dfa73fee4b0cdded73d1b4f
isopen False
license_id notspecified
license_title License not specified
maintainer Public Information Officer, Oklahoma-Texas Water Science Center
maintainer_email gs-w-txpublicinfo@usgs.gov
metadata_created 2025-11-22T21:24:57.698599
metadata_modified 2025-11-22T21:24:57.698604
notes 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://dx.doi.org/xxxxxxxx.
num_resources 2
num_tags 16
title Concentrations of pesticides in sediment in 82 streams and in biofilms in 54 streams in California in 2017