Assessing pesticide residues occurrence and risks in water systems: A Pan-European and Argentina perspective

Water Research, Journal Year: 2024, Volume and Issue: 254, P. 121419 - 121419

Published: March 7, 2024

Freshwater ecosystems face a particularly high risk of biodiversity loss compared to marine and terrestrial systems. The use pesticides in agricultural fields is recognized as relevant stressor for freshwater environments, exerting negative impact worldwide on the overall status health communities. In present work, part Horizon 2020 funded SPRINT project, occurrence 193 pesticide residues was investigated 64 small water bodies distinct typology (creeks, streams, channels, ditches, rivers, lakes, ponds reservoirs), located regions with activity 10 European countries Argentina. Mixtures were detected all (20, median; 8-40 min-max). Total levels found ranged between 6.89 5860 ng/L, highlighting herbicides dominant type pesticides. Glyphosate compound highest median concentration followed by 2,4-D MCPA, lower degree dimethomorph, fluopicolide, prothioconazole metolachlor(-S). Argentina site total Netherlands, Portugal France. One or more exceeded threshold values established Water Framework Directive surface 9 out 11 case study sites (CSS), surpassed reference value 500 ng/L 8 CSS. Although only 5% (bifenthrin, dieldrin, fipronil sulfone, permethrin, terbutryn) individual denoted (RQ > 1), ratios estimated mixtures suggested potential environmental aquatic compartment studied.

Language: Английский

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From molecular descriptors to the developmental toxicity prediction of pesticides/veterinary drugs/bio-pesticides against zebrafish embryo: Dual computational toxicological approaches for prioritization

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 476, P. 134945 - 134945

Published: June 17, 2024

Language: Английский

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

Environmental Science & Technology, Journal Year: 2021, Volume and Issue: 55(8), P. 4740 - 4752

Published: March 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.

Language: Английский

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Ecological consequences of neonicotinoid mixtures in streams

Science Advances, Journal Year: 2022, Volume and Issue: 8(15)

Published: April 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.

Language: Английский

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Linkage of antibiotic resistance genes, associated bacteria communities and metabolites in the wheat rhizosphere from chlorpyrifos-contaminated soil

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 741, P. 140457 - 140457

Published: June 23, 2020

Language: Английский

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Pesticide mixtures show potential toxicity to aquatic life in U.S. streams, water years 2013–2017

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 745, P. 141285 - 141285

Published: July 28, 2020

During water years (WY) 2013–2017, the U.S. Geological Survey, National Water-Quality Assessment (NAWQA) Project, sampled Water Quality Network – Rivers and Streams (NWQN) year-round reported on 221 pesticides at 72 sites across United States in agricultural, developed, mixed land use watersheds. The Pesticide Toxicity Index (PTI) was used to estimate potential chronic acute toxicity three taxonomic groups fish, cladocerans, benthic invertebrates. For invertebrates (either invertebrates, or both), maximum PTI score exceeded predicted screening level 18 of (25%) some point during WY 2013–2017. a single pesticide compound found overwhelm other mixtures after concentrations were weighted. this study, about 71%, 72%, 92% Fish-, Cladoceran-, Benthic Invertebrate-PTI scores, respectively, had one primarily contributing sample (>50%). There 17 (13 insecticides, 2 herbicides, 1 fungicide, synergist) compounds analyzed that primary drivers each which TUmax (toxic unit for makes largest contribution PTI) scores above (>0.1) (>1) levels taxa. cladocerans PTIs mostly insecticides. driving bifenthrin, carbaryl, chlorpyrifos, diazinon, dichlorvos, dicrotophos, diflubenzuron, flubendiamide, tebupirimfos. atrazine (an herbicide), as well insecticides carbofuran, fipronil, imidacloprid, methamidophos toxicity. there types contributed most acetochlor, an herbicide; carbendazim, fungicide degradate; piperonylbutoxide, synergist.

Language: 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, Journal Year: 2021, Volume and Issue: 787, P. 147147 - 147147

Published: April 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.

Language: Английский

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Multiple lines of evidence point to pesticides as stressors affecting invertebrate communities in small streams in five United States regions

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 915, P. 169634 - 169634

Published: Jan. 24, 2024

Multistressor studies were performed in five regions of the United States to assess role pesticides as stressors affecting invertebrate communities wadable streams. Pesticides and other chemical physical measured 75 99 streams per region for 4 weeks, after which surveyed (435 total sites). sampled weekly filtered water, once bed sediment. The a stressor was assessed by evaluating multiple lines evidence: toxicity predictions based on pesticide concentrations, multivariate models statistical analyses, previously published mesocosm experiments. Toxicity using benchmarks species sensitivity distributions correlations suggested that present at high enough concentrations adversely affect regional scale. Two undirected techniques—boosted regression tree distance-based linear models—identified predictors (respectively) metrics community composition. To put insecticides context with known, influential covariates response, generalized additive used identify individual pesticide(s) important condition each region, accounting natural covariates. Four identified scale: bifenthrin, chlordane, fipronil its degradates, imidacloprid. Fipronil particularly Southeast imidacloprid, chlordane regions. For fipronil, supported experiments demonstrated adverse effects naïve aquatic when dosed under controlled conditions. These evidence do not prove causality—which is challenging field multistressor conditions—but they make strong case within

Language: Английский

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

Water Research, Journal Year: 2021, Volume and Issue: 208, P. 117848 - 117848

Published: Nov. 8, 2021

Language: Английский

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Evaluation of pesticide pollution in the Gualeguay Basin: An extensive agriculture area in Argentina

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 851, P. 158142 - 158142

Published: Aug. 18, 2022

Language: Английский

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