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

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Март 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).

Язык: Английский

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Effect of polyethylene microplastics on oxidative stress and histopathology damages in Litopenaeus vannamei

Environmental Pollution, Год журнала: 2021, Номер 288, С. 117800 - 117800

Опубликована: Июль 17, 2021

Язык: Английский

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Fate of microplastics in deep-sea sediments and its influencing factors: Evidence from the Eastern Indian Ocean

The Science of The Total Environment, Год журнала: 2022, Номер 828, С. 154266 - 154266

Опубликована: Март 3, 2022

Язык: Английский

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Temporal and spatial variation of microplastics in Baotou section of Yellow River, China

Journal of Environmental Management, Год журнала: 2023, Номер 338, С. 117803 - 117803

Опубликована: Апрель 5, 2023

Freshwater rivers play the key role in providing drinking water sources and building bridge of oceans lands. Hence, environmental pollutants can be transferred into through a treatment process transported land-based microplastics ocean. Microplastics are considered new pollutant that is becoming threat to freshwater ecosystems. The present study investigated temporal spatial variation abundance their characteristics occurrence surface water, sediment soil samples Baotou section Yellow River China March 2021 September 2021. According LDIR analysis, average abundances wet season (surface 2510.83 ± 2971.27n/L, 6166.67 2914.56n/kg) were higher than dry season(surface 432.5 240.54n/L, 3766.67 1625.63n/kg), particularly being significant difference seasons water. predominant polymer types (PBS PET during season, PP season) demonstrated could attributed combined effect regional precipitation, fishing activities improper disposal plastic waste. And results showed was river south side other sampling sites, revealing differences burden at different sites. Moreover, it worth noting large amount PAM detected sediments soil, but not biodegradable plastics PBS PLA also River. It very useful information for evaluating impacts ecological effects degradable compared traditional after implementation policy future. Thus, this provided insights temporal-spatial an urban raised management awareness long-term safety by microplastics.

Язык: Английский

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Mangrove degradation retarded microplastics weathering and affected metabolic activities of microplastics-associated microbes

Journal of Hazardous Materials, Год журнала: 2022, Номер 445, С. 130535 - 130535

Опубликована: Дек. 1, 2022

Язык: Английский

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Phthalate esters and nonylphenol concentrations correspond with microplastic distribution in anthropogenically polluted river sediments

Marine Pollution Bulletin, Год журнала: 2024, Номер 199, С. 116031 - 116031

Опубликована: Янв. 21, 2024

Язык: Английский

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Natural Factors of Microplastics Distribution and Migration in Water: A Review

Water, Год журнала: 2024, Номер 16(11), С. 1595 - 1595

Опубликована: Июнь 3, 2024

Microplastics are widely present worldwide and of great concern to scientists governments due their toxicity ability serve as carriers other environmental pollutants. The abundance microplastics in different water bodies varied significantly, mainly attributed the initial emission concentration pollutants migration process determines abundance, fate, bioavailability water. Previous studies have proved that physicochemical properties themselves important factors affecting migration, but change external conditions is also one main controlling microplastics. In this paper, we focus on effects meteorological (rainfall, light, wind) distribution conclude influence affects inflow microplastics, physical chemical water, dynamics At same time, briefly summarized aquatic organisms, substrates, topography It believed organisms can affect through adsorption vivo transmission plants, feeding behavior, swimming, metabolism animals, extracellular polymers formed by microorganisms, original processes bodies. A full understanding mechanism theoretical significance for law comprehensively assessing pollution load safety risk

Язык: Английский

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Quantifying annual microplastic emissions of an urban catchment: Surface runoff vs wastewater sources

Journal of Environmental Management, Год журнала: 2024, Номер 360, С. 121123 - 121123

Опубликована: Май 18, 2024

Urban clusters are recognized as hotspots of microplastic pollution, and the associated urban rivers convey microplastics into global oceans. Despite this knowledge, relative contributions various sources to annual emissions from catchments remain scarcely quantified. Here, we quantified a riverine catchment in Japan. The total (size range: 10-5000 μm) released amounted 269.1 tons/annum, which 78.1% is contributed by surface runoff other uncontrolled (UCE), 21.1% emerges regulated wastewater (controlled emissions; CE), implying that approximately one-fifth intercepted removed treatment plants (WWTPs). This further indicated higher pollution unmanaged compared untreated wastewater. In dry season, WWTPs significantly reduction (95%) wet periods (8%). On an scale, treated effluent occupies only 0.1% river network (212.4 tons/annum), while remaining portion dominated UCE, i.e., primarily (98.9%), trivially background inputs potentially derived through atmospheric depositions days (1.0%). It was shown moderate heavy rainfall events occur during 18% year (within context Japan), leading 95% emissions, crucial for control rivers. Furthermore, our study demonstrated area-normalized (∼0.8 tons/km

Язык: Английский

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Microplastic Pollution in the Water Column and Benthic Sediment of the San Pedro Bay, California, USA

Environmental Research, Год журнала: 2025, Номер unknown, С. 120866 - 120866

Опубликована: Янв. 1, 2025

Язык: Английский

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Colonization time of plastisphere drives the dynamics of organic carbon stability and microbial communities in seagrass bed sediments

Journal of Hazardous Materials, Год журнала: 2025, Номер 492, С. 138078 - 138078

Опубликована: Март 30, 2025

Язык: Английский

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