Skip to main content
  1. ScienceBase Catalog
  2. National Water-Quality Assessment Project
  3. Regional Stream Quality Assessment
  4. Pesticide and transformation product concentrations and risk quotients in U.S. headwater streams

Pesticide and transformation product concentrations and risk quotients in U.S. headwater streams

Dates

Publication Date
Start Date
2013
End Date
2017

Citation

Romanok, K.M., Bradley, P.M., and Mahler, B.J., 2021, Pesticide and transformation product concentrations and risk quotients in U.S. headwater streams: U.S. Geological Survey data release, https://doi.org/10.5066/P9PSU28Y.

Summary

This dataset includes a subset of previously released pesticide data (Morace and others, 2020) from the U.S. Geological Survey (USGS) National Water Quality Assessment Program (NAWQA) Regional Stream Quality Assessment (RSQA) project and the corresponding hazard index results calculated using the R package toxEval, which are relevant to Mahler and others, 2020. Pesticide and transformation products were analyzed at the USGS National Water Quality Laboratory in Denver, Colorado. Files are grouped as pesticides (parent compounds), transformation products (degradate compounds), compounds with no Acute Invertebrate (AI) benchmarks, compounds with no Acute Non-Vascular Plant (ANVP) benchmarks, and compounds not evaluated through the toxEval [...]

Contacts

Point of Contact :
Paul M Bradley
Process Contact :
Kristin M Romanok
Originator :
Kristin M Romanok, Paul M Bradley, Barbara J Mahler
Metadata Contact :
Kristin M Romanok
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
South Atlantic Water Science Center
USGS Mission Area :
Water Resources

Attached Files

Click on title to download individual files attached to this item.

RSQA_PesticideDegradate_metadata.xml
Original FGDC Metadata
View 		76.36 KB application/fgdc+xml
Table1_RSQA_SiteInfo.txt
“Table 1. Site information” 		41.56 KB text/plain
Table2_RSQA_Methods.txt
“Table 2. Methods information” 		25.82 KB text/plain
Table3a_RSQA_DetectedOrganics_Parentonly.txt
“Table 3a. Detected organics (parent only)” 		3.53 MB text/plain
Table3b_RSQA_Detectedorganics_Degradatesonly.txt
“Table 3b. Detected organics (degradates only)” 		3.53 MB text/plain
Table3c_RSQA_Detectedorganics_nonAIdegs.txt
“Table 3c. Detected organics (non-AI)” 		1.35 MB text/plain
Table3d_RSQA_Detectedorganics_nonANVPdegs.txt
“Table 3d. Detected organics (non-ANVP)” 		1.59 MB text/plain
Table3e_RSQA_Detectedorganics_nonTCdegs.txt
“Table 3e. Detected organics (non-ToxCast)” 		1.57 MB text/plain
Table4a_RSQA_ANVPresults.txt
“Table 4a. ANVP results” 		483.21 KB text/plain
Table4b_RSQA_AIresults.txt
“Table 4b. AI results” 		503.63 KB text/plain
Table4c_RSQA_EARresults.txt
“Table 4c. EAR results” 		487.85 KB text/plain
Table5_RSQA_Estimated_HIresults.txt
“Table 5. HI results” 		36.11 KB text/plain

Purpose

Over 200 pesticide and (or) transformation product compounds were evaluated by the USGS NAWQA program’s nationwide RSQA project from 2013-17. Results from these analyses documented the presence of pesticide compounds in 89% of streams sampled. The data released herein were employed by Mahler and others (2020) to quantify the risk of acute and chronic exposures to these potentially toxic substances based on established Aquatic Life Benchmarks (ALB) or molecular bioassay activity endpoints (EPA ToxCast database). Hazard index (HI) ratios were calculated for those compounds with existing ALB or ToxCast data, but corresponding benchmarks or bioactivity metrics were not available for more than half of the detected compounds. The HI associated with detected concentrations of the latter were estimated based on equimolar substitution of the parent pesticide. The framework for that process is presented herein.

Map

Map Preview

Communities

  • National Water-Quality Assessment Project

Tags

Provenance

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9PSU28Y

Item Actions

View Item as ...

JSON ATOM ISO XML

Save Item as ...

JSON FGDC MODS XML ISO XML

View Item...

Metrics