Sources, distribution, and impacts of emerging contaminants – a critical review on contamination of landfill leachate

Journal of Hazardous Materials Advances, Journal Year: 2025, Volume and Issue: unknown, P. 100602 - 100602

Published: Jan. 1, 2025

Language: Английский

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Flame retardant contamination and ecological risk analysis in estuarine and marine sediments around an industrial port

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 214, P. 117783 - 117783

Published: March 5, 2025

Language: Английский

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Organophosphate flame retardants and their metabolites in the Pearl River Estuary: Occurrence, influencing factors, and ecological risk control strategies based on a mass balance model

Environment International, Journal Year: 2024, Volume and Issue: 184, P. 108478 - 108478

Published: Feb. 1, 2024

Estuaries serve as crucial filters for land-based pollutants to the open sea, but there is a lack of information on migration and fate organophosphate flame retardants (OPFRs) within estuaries. This study focused Pearl River Estuary (PRE) by examining co-occurrence OPFRs their metabolites quantifying transport fluxes using mass balance model. The seawater concentrations exhibited significant seasonal variations (p < 0.01), while sediment reflected long-term distributional equilibrium in PRE. concentration Σ

Language: Английский

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Investigation of alkyl, aryl, and chlorinated OPFRs in sediments from estuarine systems: Seasonal variation, spatial distribution and ecological risks assessment

Environmental Research, Journal Year: 2024, Volume and Issue: 250, P. 118465 - 118465

Published: Feb. 15, 2024

Estuaries in South Africa are very important for biodiversity conservation and serve as focal points leisure tourism activities. The organophosphate flame retardants (OPFRs) levels these aquatic systems haven't been documented any studies of yet. Due to the negative effects persistent organic pollutants African estuaries, we examined occurrence eight OPFRs sediments two estuaries by studying their spatiotemporal distribution, season variation, ecological risks. Sundays Estuary (SDE), a semi-urbanized agricultural surrounding system, recorded an ∑

Language: Английский

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Degradation of tris(1,3-dichloro-2-propyl) phosphate (TDCPP) by ultraviolet activated hydrogen peroxide: Mechanisms, pathways and toxicity assessments

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 155690 - 155690

Published: Sept. 1, 2024

Language: Английский

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Influence of watershed characteristics and human activities on the occurrence of organophosphate esters related to dissolved organic matter in estuarine surface water

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 914, P. 169956 - 169956

Published: Jan. 9, 2024

Language: Английский

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Occurrence of organophosphorus flame retardants in Xiangjiang River: Spatiotemporal variations, potential affecting factors, and source apportionment

Chemosphere, Journal Year: 2024, Volume and Issue: 355, P. 141822 - 141822

Published: March 30, 2024

Language: Английский

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Do the same chlorinated organophosphorus flame retardants that cause cytotoxicity and DNA damage share the same pathway?

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 273, P. 116158 - 116158

Published: Feb. 27, 2024

Organophosphorus flame retardants (OPFRs) have been frequently detected with relatively high concentrations in various environmental media and are considered emerging pollutants. However, their biological effect underlying mechanism is still unclear, whether chlorinated OPFRs (Cl-OPFRs) cause adverse outcomes the same molecular initial events or share key (KEs) remains unknown. In this study, vitro bioassays were conducted to analyze cytotoxicity, mitochondrial impairment, DNA damage mechanisms of two Cl-OPFRs. The results showed that these Cl-OPFRs, which similar structures, induced severe cellular damages via different mechanisms. Both tris(2-chloroethyl) phosphate (TCEP) tris(1-chloro-2-propyl) (TCPP) oxidative stress-mediated impairment damage, as shown by overproduction intracellular reactive oxygen species (ROS) superoxide. Furthermore, caused TCPP resulted p53/p21-mediated cell cycle arrest, evidenced flow cytometry real-time PCR. At levels, increased sub-G1 apoptotic peak upregulated p53/Bax apoptosis pathway, possibly associated its stronger cytotoxicity. Although structurally TCPP, TCEP did not induce KEs. These provide insight into toxicity Cl-OPFRs structures but mechanisms, great significance for constructing outcome pathways determining intermediate

Language: Английский

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Organophosphate ester in surface water of the Pearl River and South China Sea, China: Spatial variations and ecological risks

Chemosphere, Journal Year: 2024, Volume and Issue: 361, P. 142559 - 142559

Published: June 7, 2024

Language: Английский

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Structure-dependent destructive adsorption of organophosphate flame retardants on lipid membranes

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 478, P. 135494 - 135494

Published: Aug. 12, 2024

Language: Английский

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