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

Environmental Health Perspectives, Journal Year: 2024, Volume and Issue: 132(7)

Published: July 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.

Language: Английский

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Assessment of the impact of chemical pollution on endangered migratory fish in two major rivers of France, including spawning grounds

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 931, P. 172748 - 172748

Published: April 26, 2024

Language: Английский

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Co-Exposure to Cyazofamid and Polymyxin E: Variations in Microbial Community and Antibiotic Resistance in the Soil‐Animal-Plant System

Published: Jan. 1, 2025

Human activity is accelerating the emergence of fungal pathogens, prompting substantial efforts to discover novel fungicides. The runoff and spray drift from agricultural fields adversely affect aquatic terrestrial nontarget organisms. However, few studies have examined effects co-contamination by agrochemical fungicides pharmaceutical antibiotics on microorganisms antibiotic resistance genes (ARGs) in soil-animal-plant system. To further explore mechanisms, we investigated individual combined a widely used fungicide (cyazofamid, CZF) last-resort (colistin, polymyxin E, PME) soil-earthworm-tomato Our study revealed that CZF PME exerted synergistic toxicity, significantly reducing earthworm survival inhibiting tomato growth. microbial community structure was perturbed, specific bacteria were enriched. Fungicides had distinct bacterial functional pathways: CZF+PME treatments enhanced compound degradation, whereas promoted biological nitrogen cycling. Moreover, increased abundance insertional plasmid-associated number totalARGs bulk rhizosphere soil. We also linkages between communities resistome. findings provide new insights into potential impacts complex real-life environments, such as soil–animal–plant systems.

Language: Английский

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Pesticide Pollution Reduces the Functional Diversity of Macroinvertebrates in Urban Aquatic Ecosystems

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Urbanization accelerates innovation and economic growth but imposes significant ecological challenges, particularly to aquatic biodiversity ecosystem functionality. Among urban stressors, pesticide-driven chemical pollution represents a critical, yet under-recognized, global threat. Quantifying the causes consequences of pesticides on loss degradation is vital for risk assessment management, offering insights promote sustainable societal development. This study evaluated anthropogenic stressors macroinvertebrate communities at 42 sites across two major drainages in Beijing using analysis environmental DNA (eDNA), focusing responses pesticide exposure context multiple stressors. Pesticides significantly impacted α- β-functional diversity macroinvertebrates, accounting 18.46 14.6% total observed variation, respectively, underscoring role functional groups assessment. Land use flow quantity directly influenced levels, which turn affected diversity, while basic water quality had less pronounced effect. These results provide empirical evidence pollution's impact watershed scale under field conditions highly urbanized area. The findings highlight importance considering sensitive taxa management ecosystems.

Language: Английский

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Factors contributing to pesticide contamination in riverine systems: The role of wastewater and landscape sources

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 174939 - 174939

Published: July 24, 2024

Wastewater treatment plant (WWTP) discharges can be a source of organic contaminants, including pesticides, to rivers. An integrated model was developed for the Potomac River watershed (PRW) determine amount accumulated wastewater percentage streamflow (ACCWW) and calculate predicted environmental concentrations (PECs) 14 pesticides in non-tidal National Hydrography Dataset Plus Version 2.1 stream segments. Predicted were compared measured (MECs) from 32 sites that represented range ACCWW land use evaluate performance assess possible non-WWTP loading sources. Statistical agreement between PECs MECs strongest insecticides, followed by fungicides herbicides. Principal component analysis utilizing optical fluorescence ancillary water quality data identified urban runoff Pesticides indicated relatively larger sources WWTPs included dinotefuran, fipronil, carbendazim, thiabendazole, prometon whereas imidacloprid, azoxystrobin, propiconazole, tebuconazole, diuron more related runoff. In addition, generally comprised low proportion MECs, which indicates dominant beyond WWTP discharges. Cumulative potential toxicity higher with greater and/or located areas. Imidacloprid, carbendazim accounted largest portion across sites. The chronic aquatic life benchmarks freshwater invertebrates exceeded 82 % imidacloprid detections (n = 28) 47 fipronil 19). These results highlight ecological implications pesticide contamination also legacy effects soil groundwater Pesticide management strategies mitigate both current historical impacts may improve health ecosystems.

Language: Английский

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Co-exposure to cyazofamid and polymyxin E: variations in microbial community and antibiotic resistance in the soil-animal-plant system

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121160 - 121160

Published: Feb. 1, 2025

Language: Английский

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Integrating the Bright and Dark Sides of Aquatic Resource Subsidies—A Synthesis

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(4)

Published: April 1, 2025

ABSTRACT Aquatic and terrestrial ecosystems are linked through the reciprocal exchange of materials organisms. Aquatic‐to‐terrestrial subsidies relatively small in most ecosystems, but they can provide high contents limiting resources that increase consumer fitness ecosystem production. However, also may carry significant contaminant loads, particularly anthropogenically impacted watersheds. Global change processes, including land use change, climate biodiversity declines, altering quantity quality aquatic subsidies, potentially shifting balance costs benefits for consumers. Many global processes interact impact both bright dark sides simultaneously, highlighting need future integrative research bridges as well disciplinary boundaries. We identify key priorities, increased quantification spatiotemporal variability across a range greater understanding landscape‐scale extent subsidy impacts deeper exploration relative

Language: Английский

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Quantification and risk assessment of polar organic contaminants in two chalk streams in Hampshire, UK using the Chemcatcher passive sampler

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 939, P. 173316 - 173316

Published: May 21, 2024

Freshwater systems are facing a number of pressures due to the inputs polar organic contaminants from range sources including agriculture, domestic and industry. The River Itchen Test two sensitive chalk streams in Southern England that experiencing decline invertebrate communities. We used Chemcatcher passive samplers measure time-weighted average concentrations (14 days) pollutants at nine sites on eight over 12-month period. Sampler extracts were analysed using targeted LC/MS method. In total, 121 plant protection products pharmaceutical personal care quantified (range log K

Language: Английский

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