Inclusion of Pesticide Transformation Products Is Key to Estimating Pesticide Exposures and Effects in Small U.S. Streams

Environmental Science & Technology, Год журнала: 2021, Номер 55(8), С. 4740 - 4752

Опубликована: Март 10, 2021

Improved analytical methods can quantify hundreds of pesticide transformation products (TPs), but understanding TP occurrence and potential toxicity in aquatic ecosystems remains limited. We quantified 108 parent pesticides 116 TPs more than 3 700 samples from 442 small streams mostly urban basins across five major regions the United States. were detected nearly as frequently parents (90 95% streams, respectively); 102 at least once 28 >20% one region—TPs 9 herbicides, 2 fungicides (chlorothalonil thiophanate-methyl), 1 insecticide (fipronil) most detected. occurred commonly during baseflow conditions, indicating chronic environmental exposures to organisms likely importance groundwater a source. Hazard quotients based on acute aquatic-life benchmarks for invertebrates nonvascular plants vertebrate-centric molecular endpoints (sublethal effects) range contribution risk highlight several exposure–response data gaps. A precautionary approach using equimolar substitution or missing indicates that effects could be underestimated by an order magnitude more.

Язык: Английский

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Ecological consequences of neonicotinoid mixtures in streams

Science Advances, Год журнала: 2022, Номер 8(15)

Опубликована: Апрель 13, 2022

Neonicotinoid mixtures are common in streams worldwide, but corresponding ecological responses poorly understood. We combined experimental and observational studies to narrow this knowledge gap. The mesocosm experiment determined that concentrations of the neonicotinoids imidacloprid clothianidin (range exposures, 0 11.9 μg/liter) above hazard concentration for 5% species (0.017 0.010 μg/liter, respectively) caused a loss taxa abundance richness, disrupted adult emergence, altered trophodynamics, while two dose-dependent synergistic effects. In 85 Coastal California streams, were commonly detected [59% samples (n = 340), 72% streams], frequently occurred as (56% streams), potential toxicity was dominated by (maximum 1.92 2.51 μg/liter). Ecological field consistent with effects observed experiment, indicating neonicotinoid pose greater than expected risks stream health.

Язык: Английский

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Flushing away the future: The effects of wastewater treatment plants on aquatic invertebrates

Water Research, Год журнала: 2023, Номер 243, С. 120388 - 120388

Опубликована: Июль 19, 2023

Язык: Английский

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An inclusive outlook on the fate and persistence of pesticides in the environment and integrated eco-technologies for their degradation

Toxicology and Applied Pharmacology, Год журнала: 2023, Номер 466, С. 116449 - 116449

Опубликована: Март 15, 2023

Язык: Английский

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Forever Pesticides: A Growing Source of PFAS Contamination in the Environment

Environmental Health Perspectives, Год журнала: 2024, Номер 132(7)

Опубликована: Июль 1, 2024

Environmental contamination by fluorinated chemicals, in particular chemicals from the per- and polyfluoroalkyl substances (PFAS) class, has raised concerns around globe because of documented adverse impacts on human health, wildlife, ecosystem quality. Recent studies have indicated that pesticide products may contain a variety meet PFAS definition, including active ingredients themselves. Given pesticides are some most widely distributed pollutants across world, legacy addition into could be widespread wide-ranging implications agriculture food water contamination, as well presence rural environments.

Язык: Английский

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Common insecticide disrupts aquatic communities: A mesocosm-to-field ecological risk assessment of fipronil and its degradates in U.S. streams

Science Advances, Год журнала: 2020, Номер 6(43)

Опубликована: Окт. 23, 2020

Study shows that a common insecticide frequently detected in U.S. streams is more toxic than previously thought.

Язык: Английский

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Pesticides in US Rivers: Regional differences in use, occurrence, and environmental toxicity, 2013 to 2017

The Science of The Total Environment, Год журнала: 2021, Номер 787, С. 147147 - 147147

Опубликована: Апрель 17, 2021

Pesticides pose a threat to the environment, but because of substantial number compounds, comprehensive assessment pesticides and an evaluation risk that they human aquatic life is challenging. In this study, improved analytical methods were used quantify 221 pesticide concentrations in surface waters over time period from 2013 2017. Samples collected 74 river sites conterminous US (CONUS). Potential toxicity was assessed by comparing water standard are considered have adverse effects on health or organisms. The majority use related agriculture, agricultural production varies across CONUS. Therefore, our results summarized region (Northeast, South, Midwest, West Pacific), with expectation crop differences would drive variability use, detection frequency, benchmark exceedance patterns. Although at least 2.5 times higher Midwest (49 kg km-2) than any other four regions West, Pacific, 3 21 average detected 1.5 (n = 25) 8 n 16), potential more evenly distributed. At 50% within each 5 had 1 chronic exceedance. Imidacloprid posed greatest total 245 exceedances 60 sites. These show persist environment beyond site application expected use. Continued monitoring research needed improve understanding life.

Язык: Английский

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Three reasons why the Water Framework Directive (WFD) fails to identify pesticide risks

Water Research, Год журнала: 2021, Номер 208, С. 117848 - 117848

Опубликована: Ноя. 8, 2021

Язык: Английский

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Emerging investigator series: municipal wastewater as a year-round point source of neonicotinoid insecticides that persist in an effluent-dominated stream

Environmental Science Processes & Impacts, Год журнала: 2021, Номер 23(5), С. 678 - 688

Опубликована: Янв. 1, 2021

Municipal wastewater effluent is a significant year-round point source of neonicotinoids to temperate-region effluent-dominated stream, leading ecological exposure conditions concern that persist downstream.

Язык: Английский

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Impacts of neonicotinoids on biodiversity: a critical review

Environmental Science and Pollution Research, Год журнала: 2023, Номер unknown

Опубликована: Дек. 1, 2023

Язык: Английский

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