Pesticide Fate Research Group (PFRG) Active
Pesticides are used in both agricultural and urban settings to manage unwanted plants, insects, fungi, and other pests. However, these substances and their breakdown products can move beyond their intended application sites through various means, ending up in areas where they weren't meant to be. This movement can happen via the air, through water (both surface and groundwater), and by sticking to soil or sediment particles. Depending on how long they stick around and how concentrated they are, pesticides can harm aquatic creatures and people. To grasp the risks associated with pesticide exposure, it's crucial to comprehend how these chemicals move and behave in the environment.
Neonicotinoid Seed Treatment Study
Neonicotinoids are a new class of insecticides chemically related to nicotine. Like nicotine, they act on receptors in the nerves and are generally much more toxic to insects, than they are to mammals and other higher organisms. Their use has increased rapidly over the last decade, driven in large part by their use for seed coating.
USGS Environmental Health Science
In the Pesticide Fate Research Group Laboratory, we see a scientist using an instrument to identify unknown organic compounds in environmental samples. It gives exact masses of chemical compounds, allowing scientists to decipher the elemental composition of a compound, and the chemical structure, without ever having known what they were looking for in the first place.
Organic Chemistry Research Laboratory
The Organic Chemistry Research Laboratory is comprised of multidisciplinary scientists with experiences in method development, sample collection, sample preparation, and instrumental analysis. The lab is equipped with instrumentation for the identification and quantification of trace level organic contaminants in water, sediment, soil, plants, biota, etc.
The Pesticide Fate Research Group (PFRG) operates within the USGS California Water Science Center, focusing on evaluating the occurrence, fate, and transport of current-use pesticides and organic contaminants in both aquatic and terrestrial environments across California and the nation. Comprising chemists, hydrologists, and physical scientists with specialized expertise, the PFRG engages in all stages of research, from field study design and sampling to analytical method development across various matrices such as water, sediment, plants, and biota. Utilizing cutting-edge instrumentation, the group conducts sample analysis, interprets data, manages information, and communicates findings to diverse stakeholders.
While pesticides represent the primary research domain, the PFRG's capabilities extend to investigating a broader spectrum of organic chemicals, including disinfection by-products, substances linked to cannabis production, alkylphenols, and others. By leveraging their skills and analytical prowess, the group addresses a wide array of environmental contaminants.
Establishing collaborative partnerships with state agencies, academic researchers, and fellow scientists within the USGS and other federal entities is central to the PFRG's approach. Funding for projects stems from various sources, including USGS mission areas such as Environmental Health (including the Toxic Substances Hydrology Program and Contaminant Biology Program), Ecosystems, and Water, as well as support from other USGS Water Science Centers and cooperating entities like the California State Department of Pesticide Regulation, Water Resources Control Board, Department of Water Resources, among others.
Below are other science projects associated with this project.
Data releases in ScienceBase are primarily focused on raw and processed data resulting from various research activities. The primary goal of these data releases is to make the data collected by USGS scientists accessible and usable. This open data approach facilitates transparency, reproducibility, and further research by allowing others to analyze, reinterpret, or build upon the original data.
USGS publications serve as authoritative sources of information for scientists, policymakers, educators, and the general public, contributing significantly to our understanding of the earth's processes, landscape changes, resource management, and environmental health. The accessibility of these publications ensures that the valuable insights and findings from the USGS are widely available.
Dissolved pesticides, dissolved organic carbon, and water-quality characteristics in selected Idaho streams, April--December 2010
Contaminants in stream sediments from seven U.S. metropolitan areas: Data summary of a National Pilot Study
Pyrethroid insecticides in bed sediments from urban and agricultural streams across the United States
Occurrence of pesticides in surface water and sediments from three central California coastal watersheds, 2008-2009
Collection of pyrethroids in water and sediment matrices: Development and validation of a standard operating procedure
Assessing the occurrence and distribution of pyrethroids in water and suspended sediments
Concentrations and loads of suspended sediment-associated pesticides in the San Joaquin River, California and tributaries during storm events
Effects of the herbicide diuron on cordgrass (Spartina foliosa) reflectance and photosynthetic parameters
Pesticides in Water and Suspended Sediment of the Alamo and New Rivers, Imperial Valley/Salton Sea Basin, California, 2006-2007
Level 1 water-quality inventory of baseline levels of pesticides in urban creeks: Golden Gate National Recreation Area and Presidio of San Francisco, California
A multi-residue method for the analysis of pesticides and pesticide degradates in water using HLB solid-phase extraction and gas chromatography-ion trap mass spectrometry
Multi-residue method for the analysis of 85 current-use and legacy pesticides in bed and suspended sediments
Below are news stories associated with this project.
Below are partners associated with this project.
- Overview
Pesticides are used in both agricultural and urban settings to manage unwanted plants, insects, fungi, and other pests. However, these substances and their breakdown products can move beyond their intended application sites through various means, ending up in areas where they weren't meant to be. This movement can happen via the air, through water (both surface and groundwater), and by sticking to soil or sediment particles. Depending on how long they stick around and how concentrated they are, pesticides can harm aquatic creatures and people. To grasp the risks associated with pesticide exposure, it's crucial to comprehend how these chemicals move and behave in the environment.
Neonicotinoid Seed Treatment StudyNeonicotinoids are a new class of insecticides chemically related to nicotine. Like nicotine, they act on receptors in the nerves and are generally much more toxic to insects, than they are to mammals and other higher organisms. Their use has increased rapidly over the last decade, driven in large part by their use for seed coating.
USGS Environmental Health ScienceIn the Pesticide Fate Research Group Laboratory, we see a scientist using an instrument to identify unknown organic compounds in environmental samples. It gives exact masses of chemical compounds, allowing scientists to decipher the elemental composition of a compound, and the chemical structure, without ever having known what they were looking for in the first place.
Organic Chemistry Research LaboratoryThe Organic Chemistry Research Laboratory is comprised of multidisciplinary scientists with experiences in method development, sample collection, sample preparation, and instrumental analysis. The lab is equipped with instrumentation for the identification and quantification of trace level organic contaminants in water, sediment, soil, plants, biota, etc.
The Pesticide Fate Research Group (PFRG) operates within the USGS California Water Science Center, focusing on evaluating the occurrence, fate, and transport of current-use pesticides and organic contaminants in both aquatic and terrestrial environments across California and the nation. Comprising chemists, hydrologists, and physical scientists with specialized expertise, the PFRG engages in all stages of research, from field study design and sampling to analytical method development across various matrices such as water, sediment, plants, and biota. Utilizing cutting-edge instrumentation, the group conducts sample analysis, interprets data, manages information, and communicates findings to diverse stakeholders.
While pesticides represent the primary research domain, the PFRG's capabilities extend to investigating a broader spectrum of organic chemicals, including disinfection by-products, substances linked to cannabis production, alkylphenols, and others. By leveraging their skills and analytical prowess, the group addresses a wide array of environmental contaminants.
Establishing collaborative partnerships with state agencies, academic researchers, and fellow scientists within the USGS and other federal entities is central to the PFRG's approach. Funding for projects stems from various sources, including USGS mission areas such as Environmental Health (including the Toxic Substances Hydrology Program and Contaminant Biology Program), Ecosystems, and Water, as well as support from other USGS Water Science Centers and cooperating entities like the California State Department of Pesticide Regulation, Water Resources Control Board, Department of Water Resources, among others.
- Science
Below are other science projects associated with this project.
- Data
Data releases in ScienceBase are primarily focused on raw and processed data resulting from various research activities. The primary goal of these data releases is to make the data collected by USGS scientists accessible and usable. This open data approach facilitates transparency, reproducibility, and further research by allowing others to analyze, reinterpret, or build upon the original data.
- Publications
USGS publications serve as authoritative sources of information for scientists, policymakers, educators, and the general public, contributing significantly to our understanding of the earth's processes, landscape changes, resource management, and environmental health. The accessibility of these publications ensures that the valuable insights and findings from the USGS are widely available.
Filter Total Items: 106Dissolved pesticides, dissolved organic carbon, and water-quality characteristics in selected Idaho streams, April--December 2010
Water-quality samples were collected from April through December 2010 from four streams in Idaho and analyzed for a suite of pesticides, including fungicides, by the U.S. Geological Survey. Water samples were collected from two agricultural and two nonagricultural (control) streams approximately biweekly from the beginning of the growing season (April) through the end of the calendar year (DecembeAuthorsTimothy J. Reilly, Kelly L. Smalling, Emma R. Wilson, William A. BattaglinContaminants in stream sediments from seven U.S. metropolitan areas: Data summary of a National Pilot Study
This report presents data collected as a part of a synoptic survey of stream sediment contaminants, associated watershed characteristics and invertebrate responses in laboratory sediment toxicity tests from 98 streams (sites) in seven metropolitan study areas across the continental United States. The report presents methods, data, and sediment-quality guidelines, including the derivation of a newAuthorsPatrick W. Moran, Dan L. Calhoun, Lisa H. Nowell, Nile E. Kemble, Chris G. Ingersoll, Michelle Hladik, Kathryn Kuivila, James A. Falcone, Robert J. GilliomPyrethroid insecticides in bed sediments from urban and agricultural streams across the United States
Pyrethroid insecticides are hydrophobic compounds that partition to streambed sediments and have been shown to cause toxicity to non-target organisms; their occurrence is well documented in parts of California, but there have been limited studies in other urban and agricultural areas across the United States. To broaden geographic understanding of pyrethroid distributions, bed sediment samples werAuthorsMichelle Hladik, Kathryn KuivilaOccurrence of pesticides in surface water and sediments from three central California coastal watersheds, 2008-2009
Water and sediment (bed and suspended) were collected from January 2008 through October 2009 from 12 sites in 3 of the largest watersheds along California's Central Coast (Pajaro, Salinas, and Santa Maria Rivers) and analyzed for a suite of pesticides by the U.S. Geological Survey. Water samples were collected in each watershed from the estuaries and major tributaries during 4 storm events and 11AuthorsKelly L. Smalling, James L. OrlandoCollection of pyrethroids in water and sediment matrices: Development and validation of a standard operating procedure
Loss of pyrethroid insecticides onto surfaces during sample collection can confound the interpretation of analytical and toxicity test results. Sample collection devices, container materials, and water matrix composition have a significant influence on the association of pyrethroids to container walls, which can be as high as 50 percent. Any sample collection method involving transfer through multAuthorsMichelle Hladik, James L. Orlando, Kathryn KuivilaAssessing the occurrence and distribution of pyrethroids in water and suspended sediments
The distribution of pyrethroid insecticides in the environment was assessed by separately measuring concentrations in the dissolved and suspended sediment phases of surface water samples. Filtered water was extracted by HLB solid-phase extraction cartridges, while the sediment on the filter was sonicated and cleaned up using carbon and aluminum cartridges. Detection limits for the 13 pyrethroids aAuthorsM.L. Hladik, K.M. KuivilaConcentrations and loads of suspended sediment-associated pesticides in the San Joaquin River, California and tributaries during storm events
Current-use pesticides associated with suspended sediments were measured in the San Joaquin River, California and its tributaries during two storm events in 2008. Nineteen pesticides were detected: eight herbicides, nine insecticides, one fungicide and one insecticide synergist. Concentrations for the herbicides (0.1 to 3000 ng/g; median of 6.1 ng/g) were generally greater than those for the insecAuthorsM.L. Hladik, Joseph L. Domagalski, K.M. KuivilaEffects of the herbicide diuron on cordgrass (Spartina foliosa) reflectance and photosynthetic parameters
Early indicators of salt marsh plant stress are needed to detect stress before it is manifested as changes in biomass and coverage. We explored a variety of leaf-level spectral reflectance and fluorescence variables as indicators of stress in response to the herbicide diuron. Diuron, a Photosystem II inhibitor, is heavily used in areas adjacent to estuaries, but its ecological effects are just begAuthorsS.L. Williams, A. Carranza, J. Kunzelman, S. Datta, Kathryn KuivilaPesticides in Water and Suspended Sediment of the Alamo and New Rivers, Imperial Valley/Salton Sea Basin, California, 2006-2007
Water and suspended-sediment samples were collected at eight sites on the Alamo and New Rivers in the Imperial Valley/Salton Sea Basin of California and analyzed for both current-use and organochlorine pesticides by the U.S. Geological Survey. Samples were collected in the fall of 2006 and spring of 2007, corresponding to the seasons of greatest pesticide use in the basin. Large-volume water samplAuthorsJames L. Orlando, Kelly L. Smalling, Kathryn KuivilaLevel 1 water-quality inventory of baseline levels of pesticides in urban creeks: Golden Gate National Recreation Area and Presidio of San Francisco, California
To characterize baseline water-quality levels of pesticides in Golden Gate National Recreation Area and the Presidio of San Francisco, the U.S. Geological Survey collected and analyzed surface-water and bed-sediment samples at 10 creeks during February, April, and July 2006. Pesticide data were obtained using previously developed methods. Samples from sites in the Presidio were analyzed only for pAuthorsMichelle Hladik, James L. OrlandoA multi-residue method for the analysis of pesticides and pesticide degradates in water using HLB solid-phase extraction and gas chromatography-ion trap mass spectrometry
A method was developed for the analysis of over 60 pesticides and degradates in water by HLB solid-phase extraction and gas-chromatography/mass spectrometry. Method recoveries and detection limits were determined using two surface waters with different dissolved organic carbon (DOC) concentrations. In the lower DOC water, recoveries and detection limits were 80%–108% and 1–12 ng/L, respectively. IAuthorsM.L. Hladik, K.L. Smalling, K.M. KuivilaMulti-residue method for the analysis of 85 current-use and legacy pesticides in bed and suspended sediments
A multi-residue method was developed for the simultaneous determination of 85 current-use and legacy organochlorine pesticides in a single sediment sample. After microwave-assisted extraction, clean-up of samples was optimized using gel permeation chromatography and either stacked carbon and alumina solid-phase extraction cartridges or a deactivated Florisil column. Analytes were determined by gasAuthorsK.L. Smalling, K.M. Kuivila - News
Below are news stories associated with this project.
- Partners
Below are partners associated with this project.