Seasonal variation characteristics of microplastics in water environment of lakes with different functions

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: April 3, 2024

Human activities and urbanization may have accelerated the enrichment dissemination of microplastics in lakes. In this study, three typical functional lakes (HRR: lake with a hospital restaurant region; PER: play entertainment SMY: primitive arboretum) were selected to compare occurrence characteristics seasonal changes microplastics, which sampled on January 23, April July October 2021. The results showed that abundance HRR was (5.73±0.81)-(13.57±7.95) items/L, PER (8.2±1.06)- (19.73±3.73) SMY (2.93±1.3)-(11.4±1.8) items/L. Additionally, mainly fibers, some fragments films, small amount pellets; color blue, particle size 0-1mm. average exhibits significant specificity lakes, reached its peak value July, January, April. Meanwhile, richness significantly higher than those SMY. This indicated is highly correlated human activities.

Language: Английский

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Toxicity to the Male Reproductive System after Exposure to Polystyrene Nanoplastics: A Macrogenomic and Metabolomic Analysis

Toxics, Journal Year: 2024, Volume and Issue: 12(8), P. 531 - 531

Published: July 23, 2024

Nanoplastics (NPs) cause serious contamination of drinking water and potential damage to human health. This study aimed investigate the effects NPs with different particle sizes concentrations on reproductive function male mice. In this study, free exposure was used expose BALB/C mice PS-NPs (20 nm, 200 1000 nm) at 0.1 mg/L, 1 5 mg/L for 4 months. The assessed after exposure, fecal blood samples were collected macrogenomics metabolomics. results showed that resulted in reduced testicular organ coefficients, decreased sperm quality, altered tissue structure, disturbed sex hormone levels, abnormal levels inflammatory factors oxidative stress. Furthermore, found NP affected alteration gut communities metabolic pathways related reproduction, such as Clostridium glutathione metabolism. Importantly, we an effect size function. future, more attention should be paid smaller NPs.

Language: Английский

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The Detection and Analysis of Microplastics in a Typical Mountainous Drinking Water System in China

Toxics, Journal Year: 2024, Volume and Issue: 12(11), P. 807 - 807

Published: Nov. 8, 2024

Microplastics (MPs) are widely detected in urban drinking water systems. However, the presence and characteristics of MPs mountainous systems with independent simple filtration facilities have been overlooked. In this study, we revealed ubiquity demonstrated that their concentrations increased along pipeline length Bainitan Village, Tiantai County, China. The facility village did not effectively remove most MPs. Polyethylene, polyurethane, polyethylene terephthalate were dominant polymers samples (72.32% total), while polyvinylchloride, prevalent sediment (74.00% total) reservoir. Long fragments predominant shape all samples, majority being smaller than 100 μm. estimated daily intake through ingestion was highest infants (2.14-31.26 MPs/kg bw/day), compared to children (1.41-20.67 bw/day) adults (1.05-15.35 highlighting vulnerability. This emphasizes need for advanced treatment regions. It also underscores necessity government attention improve safety remote areas. Our research will contribute valuable baseline data further on MP exposure, particularly communities.

Language: Английский

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Recent Advances on Microplastics and Nanoplastics Impacts to the United Nations’ Sustainable Development Goal 2—Zero Hunger: a Systematic Review

Water Air & Soil Pollution, Journal Year: 2024, Volume and Issue: 235(12)

Published: Nov. 12, 2024

Language: Английский

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