Search results: “Hladik”

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  • Salinity Changes the Dynamics of Pyrethroid Toxicity in Terms of Behavioral Effects on Newly Hatched Delta Smelt Larvae

    Salinity Changes the Dynamics of Pyrethroid Toxicity in Terms of Behavioral Effects on Newly Hatched Delta Smelt Larvae

    Toxics | February 20, 2021...
    Summary

    Salinity can interact with organic compounds and modulate their toxicity. Studies have shown that the fraction of pyrethroid insecticides in the aqueous phase...

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  • Pesticide Concentrations Associated with Augmented Flow Pulses in the Yolo Bypass and Cache Slough Complex, California

    Pesticide Concentrations Associated with Augmented Flow Pulses in the Yolo Bypass and Cache Slough Complex, California

    U.S. Geological Survey (USGS) | July 23, 2020...
    Summary

    Surface-water and suspended-sediment samples were collected and analyzed by the U.S. Geological Survey for multiple current-use pesticides and pesticide degradates approximately every 2...

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  • Current-Use Pesticides, Fragrance Ingredients, and Other Emerging Contaminants in San Francisco Bay Margin Sediment and Water

    Current-Use Pesticides, Fragrance Ingredients, and Other Emerging Contaminants in San Francisco Bay Margin Sediment and Water

    San Francisco Estuary Institute (SFEI) | February 28, 2020...
    Summary

    The Regional Monitoring Program for Water Quality in San Francisco Bay (RMP) has recently focused attention on better characterization of contaminants in nearshore “margin”...

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  • Review of and recommendations for monitoring contaminants and their effects in the San Francisco Bay−Delta

    Review of and recommendations for monitoring contaminants and their effects in the San Francisco Bay−Delta

    San Francisco Estuary & Watershed Science (UC Davis) | December 3, 2019...
    Summary

    Legacy and current-use contaminants enter into and accumulate throughout the San Francisco Bay−Delta (Bay−Delta), and are present at concentrations with known effects on...

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  • Pesticide Mixtures in the Sacramento–San Joaquin Delta, 2016–17: Results from Year 2 of the Delta Regional Monitoring Program

  • Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations

    Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations

    Applied Geochemistry, Elsevier | March 10, 2017...
    Summary

    The large volume of wastewater produced during unconventional oil and gas (UOG) extraction is a significant challenge for the energy industry and of...

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  • Chlorinated Byproducts of Neonicotinoids and Their Metabolites: An Unrecognized Human Exposure Potential?

    Chlorinated Byproducts of Neonicotinoids and Their Metabolites: An Unrecognized Human Exposure Potential?

    American Chemical Society (ACS) | January 14, 2019...
    Summary

    We recently reported the initial discovery of neonicotinoid pesticides in drinking water and their potential for transformation through chlorination and alkaline hydrolysis during...

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  • Detections of current-use pesticides at 12 surface water sites in California during a 2-year period beginning in 2015

    Detections of current-use pesticides at 12 surface water sites in California during a 2-year period beginning in 2015

    U.S. Geological Survey (USGS), Central Valley Regional Water Quality Control Board | July 27, 2018...
    Summary

    Surface water samples were collected by the U.S. Geological Survey and multiple cooperators during base flow/irrigation runoff and storm runoff conditions from 12...

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  • Pesticide inputs to the Sacramento–San Joaquin Delta, 2015–16: Results from the Delta Regional Monitoring Program

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    Pesticide inputs to the Sacramento–San Joaquin Delta, 2015–16: Results from the Delta Regional Monitoring Program

    U.S. Geological Survey (USGS), Delta Regional Monitoring Program | July 11, 2018...
    Summary

    Emergent hypotheses about causes of the pelagic organism decline in the Sacramento–San Joaquin Delta (Delta) indicate that a more complete understanding of the...

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  • Dissolved Pesticide Concentrations Entering the Sacramento–San Joaquin Delta from the Sacramento and San Joaquin Rivers, California, 2012–13

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    Dissolved Pesticide Concentrations Entering the Sacramento–San Joaquin Delta from the Sacramento and San Joaquin Rivers, California, 2012–13

    USGS | August 20, 2014...
    Summary

    Surface-water samples were collected from the Sacramento and San Joaquin Rivers where they enter the Sacramento–San Joaquin Delta, and analyzed by the U.S....

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