Graffiti adorns an outfall pipe discharging stormwater into Sausal Creek. Sausal Creek was one of the many urban creeks sampled by the Regional Stream Quality Assessment (RSQA).
Peter C Van Metre (Former Employee)
Science and Products
Coal-Tar-Based Pavement Sealcoat, PAHs, and Environmental Health
Water-Quality Trends From Lake Cores
USGS Research: PAHs and Coal-Tar-Based Pavement Sealcoat
Data set for an ecological risk assessment of Firpronil compounds in US streams
Dissolved Pesticides in Weekly Water Samples from the NAWQA Regional Stream Quality Assessments (2013-2017)
Concentrations of pesticides associated with streambed sediment and biofilm in California streams, 2017
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 t
Urban sediment and fallout radionuclide input characteristics of Dead Run watershed in Catonsville, Maryland for 2017-2018 (ver. 1.1, March 2020)
Pesticides in Daily and Weekly Water Samples from the NAWQA Midwest and Southeast Stream Quality Assessments (2013-2014)
Linking the Agricultural Landscape of the Midwest to Stream Health with Structural Equation Modeling: Model Input Data
Geospatial database of the study boundary, sampled sites, watersheds, and riparian zones for U.S. Geological Survey Southeast Stream Quality Assessment
Concentrations of glyphosate and atrazine compounds in 100 Midwest United States streams in 2013
Supporting Data: Complex Mixtures of Pesticides in Midwest U.S. Streams Indicated by POCIS Time-Integrating Samplers
Graffiti adorns an outfall pipe discharging stormwater into Sausal Creek. Sausal Creek was one of the many urban creeks sampled by the Regional Stream Quality Assessment (RSQA).
A hydrotech prepares to collect a water-quality sample at urban Sausal Creek, with its distinctive graffiti. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
A hydrotech prepares to collect a water-quality sample at urban Sausal Creek, with its distinctive graffiti. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
Flowers and graffiti turn urban Sausal Creek into a bizarre wonderland. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
Flowers and graffiti turn urban Sausal Creek into a bizarre wonderland. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
The Bronx River has been straightened as it flows by a street in New York City. The Bronx River was one of many streams sampled in the Northeastern U.S. as part of the Regional Stream Quality Assessments (RSQA).
The Bronx River has been straightened as it flows by a street in New York City. The Bronx River was one of many streams sampled in the Northeastern U.S. as part of the Regional Stream Quality Assessments (RSQA).
Water flows from a stormwater outfall in the Northeast. Such outfalls are considered point source discharges.
Water flows from a stormwater outfall in the Northeast. Such outfalls are considered point source discharges.
Salmonids are inventoried during the ecosurveys done for the Regional Stream Quality Assessment (RSQA)
Salmonids are inventoried during the ecosurveys done for the Regional Stream Quality Assessment (RSQA)
The Columbia River flows by the highway on its way to the Pacific Ocean.
The Columbia River flows by the highway on its way to the Pacific Ocean.
Sunfish from the Southeast Stream Quality Assessment. An increase in sunfish in southeastern streams, intentionally stocked or unintentionally transplanted, has caused the composition of fish species among streams in the Southeast to become more similar. Such homogenization of species is an emergi
Sunfish from the Southeast Stream Quality Assessment. An increase in sunfish in southeastern streams, intentionally stocked or unintentionally transplanted, has caused the composition of fish species among streams in the Southeast to become more similar. Such homogenization of species is an emergi
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
Many small farms in the Corn Belt state of the Midwest also have confined animal feeding operations (CAFOs). These CAFOs can be a source of nitrogen to receiving small streams. The USGS Regional Stream Quality Assessment (RSQA) investigated the water quality of small streams across the Midwest during 2013.
Many small farms in the Corn Belt state of the Midwest also have confined animal feeding operations (CAFOs). These CAFOs can be a source of nitrogen to receiving small streams. The USGS Regional Stream Quality Assessment (RSQA) investigated the water quality of small streams across the Midwest during 2013.
A USGS hydrologist and hydrologic technician install a microsampler in an urban creek in Milwaukee, Wisconsin. The microsampler allows collection of a sample "sip" every 6 hours; the sips are composited into a daily sample. Collection of daily samples revealed the presence of more pesticides and higher concentrations than manual samples collected weekly.
A USGS hydrologist and hydrologic technician install a microsampler in an urban creek in Milwaukee, Wisconsin. The microsampler allows collection of a sample "sip" every 6 hours; the sips are composited into a daily sample. Collection of daily samples revealed the presence of more pesticides and higher concentrations than manual samples collected weekly.
Wet weather during the 2013 USGS Regional Stream Quality Assessment (RSQA) caused water to pond on cornfields. The RSQA studied the relations between water-quality, physical habitat, and stream ecology in the Corn Belt states of the Midwest.
Wet weather during the 2013 USGS Regional Stream Quality Assessment (RSQA) caused water to pond on cornfields. The RSQA studied the relations between water-quality, physical habitat, and stream ecology in the Corn Belt states of the Midwest.
The summer of 2013 was particularly wet in the Corn Belt states of the Midwest. Water ponded in fields under stormy skies, hampering sampling by the USGS Regional Stream Quality Assessment (RSQA) team.
The summer of 2013 was particularly wet in the Corn Belt states of the Midwest. Water ponded in fields under stormy skies, hampering sampling by the USGS Regional Stream Quality Assessment (RSQA) team.
Biologists from the USGS Columbia Environmental Research Center (CERC) use fish and frogs in cages suspended in flowing streams to study the effects of stream contaminants on fish and frog development. Here, three biologists wrestle with a cage in high water, as part of the Regional Stream Quality Assessments (RSQA).
Biologists from the USGS Columbia Environmental Research Center (CERC) use fish and frogs in cages suspended in flowing streams to study the effects of stream contaminants on fish and frog development. Here, three biologists wrestle with a cage in high water, as part of the Regional Stream Quality Assessments (RSQA).
Fish biologists Diana Papoulias and Diana Nicks wrestle with cages of fathead minnows in Goodwater Creek, Missouri, during high flow. Flooding presented some special challenges to sampling.
Fish biologists Diana Papoulias and Diana Nicks wrestle with cages of fathead minnows in Goodwater Creek, Missouri, during high flow. Flooding presented some special challenges to sampling.
In the Corn Belt states of the Midwest, intensive agriculture extends up to stream banks, eliminating trees and other riparian vegegation. In 2013, the USGS Regional Stream Quality Assessment (RSQA) investigated the effects of land use, stream quality, and other stressors on the ecological health of 100 streams i
In the Corn Belt states of the Midwest, intensive agriculture extends up to stream banks, eliminating trees and other riparian vegegation. In 2013, the USGS Regional Stream Quality Assessment (RSQA) investigated the effects of land use, stream quality, and other stressors on the ecological health of 100 streams i
A tile drain concentrates and transports irrigation water and the chemicals it contains to a stream.
A tile drain concentrates and transports irrigation water and the chemicals it contains to a stream.
Runoff from this sealcoated lot will flow into the storm drain, where it will be transported to streams and lakes.
Runoff from this sealcoated lot will flow into the storm drain, where it will be transported to streams and lakes.
Multiple lines of evidence point to pesticides as stressors affecting invertebrate communities in small streams in five United States regions
Ecological consequences of neonicotinoid mixtures in streams
Sediment sources and sealed-pavement area drive polycyclic aromatic hydrocarbon and metal occurrence in urban streams
New-generation pesticides are prevalent in California's Central Coast streams
Multiple in-stream stressors degrade biological assemblages in five U.S. regions
Is there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity
Inclusion of pesticide transformation products is key to estimating pesticide exposures and effects in small U.S. streams
Multi-region assessment of chemical mixture exposures and predicted cumulative effects in USA wadeable urban/agriculture-gradient streams
Chemical-contaminant mixtures are widely reported in large stream reaches in urban/agriculture-developed watersheds, but mixture compositions and aggregate biological effects are less well understood in corresponding smaller headwaters, which comprise most of stream length, riparian connectivity, and spatial biodiversity. During 2014–2017, the U.S. Geological Survey (USGS) measured 389 unique orga
Common insecticide disrupts aquatic communities: A mesocosm-to-field ecological risk assessment of fipronil and its degradates in U.S. streams
Prioritizing river basins for intensive monitoring and assessment by the US Geological Survey
Design and methods of the California stream quality assessment (CSQA), 2017
Biofilms provide new insight into pesticide occurrence in streams and links to aquatic ecological communities
Science and Products
- Science
Coal-Tar-Based Pavement Sealcoat, PAHs, and Environmental Health
Sealcoat is the black, viscous liquid applied to many asphalt parking lots, driveways, and playgrounds in North America to protect and enhance the appearance of the underlying asphalt. Coal-tar-based pavement sealcoat is a potent source of polycyclic aromatic hydrocarbon (PAH) contamination in urban and suburban areas and a potential concern for human health and aquatic life.Water-Quality Trends From Lake Cores
Sediment cores let us look back in time at the contaminant history of a watershed. Learn about what lake and reservoir sediment cores tell us about trends in metals, organochlorine pesticides, polycyclic aromatic hydrocarbons, and other sediment-related contaminants.USGS Research: PAHs and Coal-Tar-Based Pavement Sealcoat
Coal-tar-based pavement sealant is a potent source of polycyclic aromatic hydrocarbons (PAHs), as documented by the USGS and other researchers. Coal-tar-based sealcoat products typically are 20 to 35% coal tar or coal-tar pitch—these materials are known human carcinogens that contain high concentrations of PAHs and related chemicals. Coal-tar-based pavement sealcoat typically contains 35,000 to... - Data
Data set for an ecological risk assessment of Firpronil compounds in US streams
The phenylpyrazole insecticide fipronil and its degradates are a potential surface-water contaminant and toxicant to nontarget species such as aquatic macroinvertebrates. To better understand how fipronil, fipronil sulfide, fipronil sulfone, desulfinyl fipronil, and fipronil amide affect aquatic communities, a 30-day mesocosm experiment was run. Rock trays were colonized with natural benthic commuDissolved Pesticides in Weekly Water Samples from the NAWQA Regional Stream Quality Assessments (2013-2017)
Dissolved pesticides were measured in weekly water samples from 482 wadeable streams in five regions of the United States during 2013-2017, as part of the U.S. Geological Survey's (USGS) Regional Stream Quality Assessment (RSQA). One study was conducted each year, starting with the Midwest (2013), followed by the Southeast Piedmont (2014), Pacific Northwest (2015), Northeast (2016), and Central CaConcentrations 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 tConcentrations 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 t
Urban sediment and fallout radionuclide input characteristics of Dead Run watershed in Catonsville, Maryland for 2017-2018 (ver. 1.1, March 2020)
This metadata record documents two comma delimited tables that contain information on fallout radionuclides and urban sediments within Dead Run watershed in Catonsville, Baltimore County, Maryland. Measurements include radiological activity for rainwater and sediment samples, sediment particle size information, suspended sediment concentration measurements, elemental composition of sediments, andPesticides in Daily and Weekly Water Samples from the NAWQA Midwest and Southeast Stream Quality Assessments (2013-2014)
These datasets are one component of the multistressor studies conducted in Midwest streams in 2013 (MSQA) and in Southeast streams in 2014 (SESQA) by the U.S. Geological Survey National Water Quality Assessment Project. High-frequency small-volume autosamplers were deployed at 7 sites each in MSQA and SESQA that collected daily and weekly composite water samples, which were analyzed for 225 pesticLinking the Agricultural Landscape of the Midwest to Stream Health with Structural Equation Modeling: Model Input Data
Biological, chemical, physical habitat, riparian, and land-use data collected from the Midwest streams by the National Water Quality Project Regional Stream Quality Team. Data were used to develop structural equation models for the purpose of understanding how networks of potential stressors influence stream ecological health. For more information about the Midwest Regional Stream Quality AssessmeGeospatial database of the study boundary, sampled sites, watersheds, and riparian zones for U.S. Geological Survey Southeast Stream Quality Assessment
In 2015, the second of several Regional Stream Quality Assessments (RSQA) was done in the southeastern United States. The Southeast Stream Quality Assessment (SESQA) was a study by the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project. One of the objectives of the RSQA, and thus the SESQA, is to characterize the relationships between water-quality stressors and streamConcentrations of glyphosate and atrazine compounds in 100 Midwest United States streams in 2013
Glyphosate and atrazine are the most intensively used herbicides in the United States. Temporal patterns in glyphosate and atrazine concentrations were measured weekly by the USGS during the 2013 growing season in 100 small streams in the Midwestern United States. Concentrations also were measured every 2 days at a subset of 8 of the sites, all located in Missouri. Glyphosate was detected more frSupporting Data: Complex Mixtures of Pesticides in Midwest U.S. Streams Indicated by POCIS Time-Integrating Samplers
The Midwest United States is an intensely agricultural region where pesticides in streams pose risks to aquatic biota, but temporal variability in pesticide concentrations makes characterization of their exposure to organisms challenging. To compensate for the effects of temporal variability, we deployed polar organic chemical integrative samplers (POCIS) in 100 small streams across the Midwest fo - Multimedia
Filter Total Items: 31Urban outfall to Sausal Creek
Graffiti adorns an outfall pipe discharging stormwater into Sausal Creek. Sausal Creek was one of the many urban creeks sampled by the Regional Stream Quality Assessment (RSQA).
Graffiti adorns an outfall pipe discharging stormwater into Sausal Creek. Sausal Creek was one of the many urban creeks sampled by the Regional Stream Quality Assessment (RSQA).
Graffiti at Sausal CreekA hydrotech prepares to collect a water-quality sample at urban Sausal Creek, with its distinctive graffiti. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
A hydrotech prepares to collect a water-quality sample at urban Sausal Creek, with its distinctive graffiti. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
Urban creek graced by flowers and graffitiFlowers and graffiti turn urban Sausal Creek into a bizarre wonderland. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
Flowers and graffiti turn urban Sausal Creek into a bizarre wonderland. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.
Bronx River by streetThe Bronx River has been straightened as it flows by a street in New York City. The Bronx River was one of many streams sampled in the Northeastern U.S. as part of the Regional Stream Quality Assessments (RSQA).
The Bronx River has been straightened as it flows by a street in New York City. The Bronx River was one of many streams sampled in the Northeastern U.S. as part of the Regional Stream Quality Assessments (RSQA).
Water flows from a stormwater outfallWater flows from a stormwater outfall in the Northeast. Such outfalls are considered point source discharges.
Water flows from a stormwater outfall in the Northeast. Such outfalls are considered point source discharges.
Salmonid in a Pacific Northwest StreamSalmonids are inventoried during the ecosurveys done for the Regional Stream Quality Assessment (RSQA)
Salmonids are inventoried during the ecosurveys done for the Regional Stream Quality Assessment (RSQA)
Columbia River in Portland, OR, with Mt. HoodThe Columbia River flows by the highway on its way to the Pacific Ocean.
The Columbia River flows by the highway on its way to the Pacific Ocean.
SunfishSunfish from the Southeast Stream Quality Assessment. An increase in sunfish in southeastern streams, intentionally stocked or unintentionally transplanted, has caused the composition of fish species among streams in the Southeast to become more similar. Such homogenization of species is an emergi
Sunfish from the Southeast Stream Quality Assessment. An increase in sunfish in southeastern streams, intentionally stocked or unintentionally transplanted, has caused the composition of fish species among streams in the Southeast to become more similar. Such homogenization of species is an emergi
Midwest streams flow through intensive row croppingMidwest streams flow through intensive row croppingIn the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
Midwest streams flow through intensive row croppingMidwest streams flow through intensive row croppingIn the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
Midwest streams flow through intensive row croppingMidwest streams flow through intensive row croppingIn the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
Midwest streams flow through intensive row croppingMidwest streams flow through intensive row croppingIn the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
In the Corn Belt states of the Midwestern U.S., intensive row-cropping surrounds small streams, effectively eliminating riparian cover and habitat. Agricultural activities can have profound effects on the chemical and physical characteristics of small streams.
CAFOs in Midwest a source of nitrogenMany small farms in the Corn Belt state of the Midwest also have confined animal feeding operations (CAFOs). These CAFOs can be a source of nitrogen to receiving small streams. The USGS Regional Stream Quality Assessment (RSQA) investigated the water quality of small streams across the Midwest during 2013.
Many small farms in the Corn Belt state of the Midwest also have confined animal feeding operations (CAFOs). These CAFOs can be a source of nitrogen to receiving small streams. The USGS Regional Stream Quality Assessment (RSQA) investigated the water quality of small streams across the Midwest during 2013.
Installing a microsampler for daily collection of pesticidesInstalling a microsampler for daily collection of pesticidesA USGS hydrologist and hydrologic technician install a microsampler in an urban creek in Milwaukee, Wisconsin. The microsampler allows collection of a sample "sip" every 6 hours; the sips are composited into a daily sample. Collection of daily samples revealed the presence of more pesticides and higher concentrations than manual samples collected weekly.
A USGS hydrologist and hydrologic technician install a microsampler in an urban creek in Milwaukee, Wisconsin. The microsampler allows collection of a sample "sip" every 6 hours; the sips are composited into a daily sample. Collection of daily samples revealed the presence of more pesticides and higher concentrations than manual samples collected weekly.
Drainage of cornfields a problem in wet Midwest weatherDrainage of cornfields a problem in wet Midwest weatherWet weather during the 2013 USGS Regional Stream Quality Assessment (RSQA) caused water to pond on cornfields. The RSQA studied the relations between water-quality, physical habitat, and stream ecology in the Corn Belt states of the Midwest.
Wet weather during the 2013 USGS Regional Stream Quality Assessment (RSQA) caused water to pond on cornfields. The RSQA studied the relations between water-quality, physical habitat, and stream ecology in the Corn Belt states of the Midwest.
Missouri barn in wet Midwest summerThe summer of 2013 was particularly wet in the Corn Belt states of the Midwest. Water ponded in fields under stormy skies, hampering sampling by the USGS Regional Stream Quality Assessment (RSQA) team.
The summer of 2013 was particularly wet in the Corn Belt states of the Midwest. Water ponded in fields under stormy skies, hampering sampling by the USGS Regional Stream Quality Assessment (RSQA) team.
USGS CERC scientists study toxicity using caged fish and frogsUSGS CERC scientists study toxicity using caged fish and frogsBiologists from the USGS Columbia Environmental Research Center (CERC) use fish and frogs in cages suspended in flowing streams to study the effects of stream contaminants on fish and frog development. Here, three biologists wrestle with a cage in high water, as part of the Regional Stream Quality Assessments (RSQA).
Biologists from the USGS Columbia Environmental Research Center (CERC) use fish and frogs in cages suspended in flowing streams to study the effects of stream contaminants on fish and frog development. Here, three biologists wrestle with a cage in high water, as part of the Regional Stream Quality Assessments (RSQA).
USGS biologists with fish and frog cages in high waterUSGS biologists with fish and frog cages in high waterFish biologists Diana Papoulias and Diana Nicks wrestle with cages of fathead minnows in Goodwater Creek, Missouri, during high flow. Flooding presented some special challenges to sampling.
Fish biologists Diana Papoulias and Diana Nicks wrestle with cages of fathead minnows in Goodwater Creek, Missouri, during high flow. Flooding presented some special challenges to sampling.
Riparian zone absent in cropped fieldsIn the Corn Belt states of the Midwest, intensive agriculture extends up to stream banks, eliminating trees and other riparian vegegation. In 2013, the USGS Regional Stream Quality Assessment (RSQA) investigated the effects of land use, stream quality, and other stressors on the ecological health of 100 streams i
In the Corn Belt states of the Midwest, intensive agriculture extends up to stream banks, eliminating trees and other riparian vegegation. In 2013, the USGS Regional Stream Quality Assessment (RSQA) investigated the effects of land use, stream quality, and other stressors on the ecological health of 100 streams i
Tile drain in intensive Corn Belt agricultureA tile drain concentrates and transports irrigation water and the chemicals it contains to a stream.
A tile drain concentrates and transports irrigation water and the chemicals it contains to a stream.
Sealcoated parking lot and storm drainRunoff from this sealcoated lot will flow into the storm drain, where it will be transported to streams and lakes.
Runoff from this sealcoated lot will flow into the storm drain, where it will be transported to streams and lakes.
- Publications
Filter Total Items: 88
Multiple lines of evidence point to pesticides as stressors affecting invertebrate communities in small streams in five United States regions
Multistressor studies were performed in five regions of the United States to assess the role of pesticides as stressors affecting invertebrate communities in wadable streams. Pesticides and other chemical and physical stressors were measured in 75 to 99 streams per region for 4 weeks, after which invertebrate communities were surveyed (435 total sites). Pesticides were sampled weekly in filtered wAuthorsLisa H. Nowell, Patrick W. Moran, Ian R. Waite, Travis S. Schmidt, Paul M. Bradley, Barbara J. Mahler, Peter Van MetreEcological consequences of neonicotinoid mixtures in streams
Neonicotinoid mixtures are common in streams worldwide, but corresponding ecological responses are poorly understood. We combined experimental and observational studies to narrow this knowledge gap. The mesocosm experiment determined that concentrations of the neonicotinoids imidacloprid and clothianidin (range of exposures, 0 to 11.9 μg/liter) above the hazard concentration for 5% of species (0.0AuthorsTravis S. Schmidt, Janet L. Miller, Barbara Mahler, Peter C. Van Metre, Lisa H. Nowell, Mark W. Sandstrom, Daren Carlisle, Patrick W. Moran, Paul M. BradleySediment sources and sealed-pavement area drive polycyclic aromatic hydrocarbon and metal occurrence in urban streams
Metals and polycyclic aromatic hydrocarbons (PAHs) are common pollutants in urban streambed sediment, yet their occurrence is highly variable and difficult to predict. To investigate sources of PAHs and metals to streambed sediment, we sampled pavement dust, soil, and streambed sediment in 10 urban watersheds in three regions of the United States and applied a fallout-radionuclide-based sediment-sAuthorsPeter C. Van Metre, Barbara Mahler, Sharon L. Qi, Allen C. Gellis, Christopher C. Fuller, Travis S. SchmidtNew-generation pesticides are prevalent in California's Central Coast streams
Pesticides are widely recognized as important biological stressors in streams, especially in heavily developed urban and agricultural areas like the Central California Coast region. We assessed occurrence and potential toxicity of pesticides in small streams in the region using two analytical methods: a broad-spectrum (223 compounds) method in use since 2012 and a newly developed method for 30 addAuthorsMark W. Sandstrom, Lisa H. Nowell, Barbara Mahler, Peter C. Van MetreMultiple in-stream stressors degrade biological assemblages in five U.S. regions
Biological assemblages in streams are affected by a wide variety of physical and chemical stressors associated with land-use development, yet the importance of combinations of different types of stressors is not well known. From 2013 to 2017, the U.S. Geological Survey completed multi-stressor/multi-assemblage stream ecological assessments in five regions of the United States (434 streams total).AuthorsIan R. Waite, Peter C. Van Metre, Patrick W. Moran, Christopher P. Konrad, Lisa H. Nowell, Michael R. Meador, Mark D. Munn, Travis S. Schmidt, Allen C. Gellis, Daren Carlisle, Paul M. Bradley, Barbara MahlerByEcosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center, Kansas Water Science Center, Oklahoma-Texas Water Science Center, Oregon Water Science Center, South Atlantic Water Science Center (SAWSC), Washington Water Science Center, Wyoming-Montana Water Science CenterIs there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity
Pesticides occur in urban streams globally, but the relation of occurrence to urbanization can be obscured by regional differences. In studies of five regions of the United States, we investigated the effect of region and urbanization on the occurrence and potential toxicity of dissolved pesticide mixtures. We analyzed 225 pesticide compounds in weekly discrete water samples collected during 6–12AuthorsLisa H. Nowell, Patrick W. Moran, Laura M. Bexfield, Barbara Mahler, Peter C. Van Metre, Paul M. Bradley, Travis S. Schmidt, Daniel T. Button, Sharon L. QiByEcosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center, Fort Collins Science Center, Maryland-Delaware-D.C. Water Science Center, New Mexico Water Science Center, Oklahoma-Texas Water Science Center, Oregon Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Washington Water Science CenterInclusion of pesticide transformation products is key to estimating pesticide exposures and effects in small U.S. streams
Improved analytical methods can quantify hundreds of pesticide transformation products (TPs), but understanding of TP occurrence and potential toxicity in aquatic ecosystems remains limited. We quantified 108 parent pesticides and 116 TPs in more than 3 700 samples from 442 small streams in mostly urban basins across five major regions of the United States. TPs were detected nearly as frequently aAuthorsBarbara Mahler, Lisa H. Nowell, Mark W. Sandstrom, Paul M. Bradley, Kristin M. Romanok, Christopher Konrad, Peter Van MetreByEcosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center, New Jersey Water Science Center, Oklahoma-Texas Water Science Center, South Atlantic Water Science Center (SAWSC), Washington Water Science Center, National Water Quality LaboratoryMulti-region assessment of chemical mixture exposures and predicted cumulative effects in USA wadeable urban/agriculture-gradient streams
Chemical-contaminant mixtures are widely reported in large stream reaches in urban/agriculture-developed watersheds, but mixture compositions and aggregate biological effects are less well understood in corresponding smaller headwaters, which comprise most of stream length, riparian connectivity, and spatial biodiversity. During 2014–2017, the U.S. Geological Survey (USGS) measured 389 unique orga
AuthorsPaul M. Bradley, Celeste A. Journey, Kristin M. Romanok, Sara E. Breitmeyer, Daniel T. Button, Daren M. Carlisle, Bradley Huffman, Barbara Mahler, Lisa H. Nowell, Sharon L. Qi, Kelly L. Smalling, Ian R. Waite, Peter C. Van MetreByEcosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, California Water Science Center, Colorado Water Science Center, Maryland-Delaware-D.C. Water Science Center, New Jersey Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oklahoma-Texas Water Science Center, Oregon Water Science Center, South Atlantic Water Science Center (SAWSC)Common insecticide disrupts aquatic communities: A mesocosm-to-field ecological risk assessment of fipronil and its degradates in U.S. streams
Insecticides in streams are increasingly a global concern, yet information on safe concentrations for aquatic ecosystems is sparse. In a 30-day mesocosm experiment exposing native benthic aquatic invertebrates to the common insecticide fipronil and four degradates, fipronil compounds caused altered emergence and trophic cascades. Effect concentrations eliciting a 50% response (EC50) were developedAuthorsJanet L. Miller, Travis S. Schmidt, Peter C. Van Metre, Barbara Mahler, Mark W. Sandstrom, Lisa H. Nowell, Daren Carlisle, Patrick W. MoranPrioritizing river basins for intensive monitoring and assessment by the US Geological Survey
The US Geological Survey (USGS) is currently (2020) integrating its water science programs to better address the nation’s greatest water resource challenges now and into the future. This integration will rely, in part, on data from 10 or more intensively monitored river basins from across the USA. A team of USGS scientists was convened to develop a systematic, quantitative approach to prioritize cAuthorsPeter C. Van Metre, Sharon L. Qi, Jeffrey R. Deacon, Cheryl A. Dieter, Jessica M. Driscoll, Michael N. Fienen, Terry A. Kenney, Patrick M. Lambert, David P. Lesmes, Christopher Allen Mason, Anke Mueller-Solger, MaryLynn Musgrove, Jaime A. Painter, Donald O. Rosenberry, Lori A. Sprague, Anthony J. Tesoriero, Lisamarie Windham-Myers, David M. WolockDesign and methods of the California stream quality assessment (CSQA), 2017
During 2017, as part of the National Water-Quality Assessment Project, the U.S. Geological Survey conducted the California Stream Quality Assessment to investigate the quality of streams in the Central California Foothills and Coastal Mountains ecoregion, United States. The goal of the California Stream Quality Assessment study was to assess the health of wadeable streams in the region by characteAuthorsJason T. May, Lisa H. Nowell, James F. Coles, Daniel T. Button, Amanda H. Bell, Sharon L. Qi, Peter C. Van MetreBiofilms 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 - News