Distribution and risk assessment of microplastic pollution in a rural river system near a wastewater treatment plant, hydro-dam, and river confluence

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: March 12, 2024

Abstract Rivers are the natural drainage system, transporting anthropogenic wastes and pollution, including microplastics (plastic < 5 mm). In a riverine can enter from different sources, have spatial variance in concentration, physical chemical properties, imposed risk to ecosystem. This pilot study presents an examination of water sediment samples using single sample collection rural Raquette River, NY evaluate hypothesis that distinct locations river, such as downstream wastewater treatment plant, upstream hydro-dam, river confluence, may be higher concentration. general, our results revealed presence high microplastic concentrations plant (in sediments), hydro dam (both sediment), confluence (water sample), compared other sites. Moreover, assessment indicates even with most its basin comprising forested agricultural land, water, at all three polluted (pollution load index, PLI > 1; zone = 1.87 1.68 for respectively), categories between Levels I IV (“minor” “danger”). Overall, stands “considerable” category (PRI 134 113 respectively). The overall objective this was advance understanding dynamics systems, elucidating their introduction point source (wastewater plant), transit through impediment (hydro-dam), release into vital transboundary (confluence Raquette-St. Lawrence Rivers).

Language: Английский

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Distribution and risk assessment of microplastics in a source water reservoir, Central China

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 2, 2025

Abstract The current researches on microplastics in different water layers of reservoirs remains limited. This study aims to investigate the within a source reservoir. Results revealed that abundance ranged from 2.07 n/L 14.28 (reservoir, water) and 3 7.02 (river, water), while varied 350 714 n/kg (dw) sediment) 299 1360 sediment). average surface, middle, bottom were 6.83 n/L, 6.30 6.91 respectively. Transparent fibrous smaller than < 0.5 mm identified as predominant fraction with Polypropylene Polyethylene being prevalent polymer types. Additionally, pollution load index, hazard risk index calculated for sediments. showed surface exhibited moderate level sediments posed low risk. Both middle elevated levels due higher concentrations polymers significant toxicity indices. presents novel findings distribution layers, providing crucial data support understanding migration patterns facilitating prevention efforts.

Language: Английский

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Removal of micro/nanoplastics in constructed wetland: Efficiency, limitations and perspectives

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146033 - 146033

Published: Sept. 13, 2023

Language: Английский

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With spatial distribution, risk evaluation of heavy metals and microplastics to emphasize the composite mechanism in hyporheic sediments of Beiluo River

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 462, P. 132784 - 132784

Published: Oct. 13, 2023

Language: Английский

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Microplastic pollution characteristics and ecological risk assessment in the Wuding River Basin, China

Environmental Pollution, Journal Year: 2024, Volume and Issue: 356, P. 124228 - 124228

Published: May 25, 2024

Language: Английский

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Undisclosed contribution of microbial assemblages selectively enriched by microplastics to the sulfur cycle in the large deep-water reservoir

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 471, P. 134342 - 134342

Published: April 19, 2024

Language: Английский

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Occurrence and characteristics of microplastics across the watershed of the world’s third-largest river

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 135998 - 135998

Published: Sept. 28, 2024

Language: Английский

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Characteristics and ecological risks of microplastic pollution in a tropical drinking water source reservoir in Hainan province, China

Environmental Science Processes & Impacts, Journal Year: 2024, Volume and Issue: 26(2), P. 451 - 460

Published: Jan. 1, 2024

Microplastic (<5 mm) pollution has become a pressing environmental concern in recent years. The present study investigated the occurrence characteristics and assessed ecological risk of microplastics surface water sediment Chitian Reservoir, drinking source Hainan province (China). results indicated that were detected Reservoir its surrounding areas. overall abundance was 3.05 ± 1.16 items per L 0.15 0.06 g dry weight, which is relatively low compared to other reservoirs China. dominant components polypropylene (PP), rayon, polyester. Physical morphology analysis showed fibers with small particle sizes (<1 white color predominant both sediment. domestic sewage from residents agricultural wastewater may be primary sources reservoir. Ecological assessment revealed load index (PLI) (0.65) (0.51) area at level. potential hazards (RI) (0.13 336.78 water; 0.23 465.93 sediment) most sites fall within scope level I, but those few are II due presence polyvinyl chloride (PVC). This enriches data on microplastic inland reservoir systems, providing fundamental reference information for future ecotoxicological studies management control.

Language: Английский

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Distribution characteristics and integrated ecological risks evaluation modelling of microplastics and heavy metals in geological high background soil

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 944, P. 173602 - 173602

Published: June 5, 2024

Language: Английский

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Study of soil microplastic pollution and influencing factors based on environmental fragility theory

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 899, P. 165435 - 165435

Published: July 11, 2023

Language: Английский

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