Occurrence characteristics and transport processes of riverine microplastics in different connectivity contexts

npj Clean Water, Год журнала: 2025, Номер 8(1)

Опубликована: Янв. 6, 2025

This study is the first to quantify migration processes of riverine microplastics under different connectivity contexts based on spatial variation characteristics microplastic loads. Microplastics in multidammed, single-dammed, and nondammed rivers are significantly three categories: abundance, flux, inventory. Artificial damming can lead multicategory reorganization microplastics, including size, polymer type, shape, color. has led formation hotspots river waters sediments due reduced mobility. Notably, low-velocity regions non-dammed high hotspot for deposition, their inventories may even be 10.63–12.71 times higher than those other riverbeds. Additionally, results abundance differ from loads, which some cases showed contradictory results. Therefore, future studies must incorporate loads into assessment enhance our understanding fate systems.

Язык: Английский

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Microplastic abundance in sludge-treated fields: Variance and estimated half-life

The Science of The Total Environment, Год журнала: 2024, Номер 922, С. 171394 - 171394

Опубликована: Фев. 29, 2024

This study investigated the abundance of microplastic (MP) in agricultural soil fertilised with sludge, assessing variation MP count and estimated mass three long-term field trials treated excessively sludge 2003–2012. Ten samples were taken from each fields concentrations ranging 2392 to 48,791 counts kg−1, where over 50 % MPs polyester acrylic. Due considerable concentration, impact number sub-samples on predicted measured concentration was applying a Monto Carlo simulation approach. Choosing sampling points is compromise between acceptable error available resources. The simulations showed an increasingly high risk obtaining outlier when taking less than approx. ten subsamples. When ending fertilisation half-life for by 2.5 years, whereas 4 years. Hence, smaller particles seemed degrade and/or migrate elsewhere fastest.

Язык: Английский

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Global Occurrence and Environmental Fate of Microplastics in Stormwater Runoff: Unlock the In-depth Knowledge on Nature-Based Removal Strategies

Reviews of Environmental Contamination and Toxicology, Год журнала: 2025, Номер 263(1)

Опубликована: Янв. 28, 2025

Язык: Английский

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Mass flow analysis of tire-wear particles, including carbon black, and implications for road dust management

Atmospheric Environment, Год журнала: 2025, Номер unknown, С. 121184 - 121184

Опубликована: Март 1, 2025

Язык: Английский

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Rubber-derived Chemicals in Urban Sewer Networks and Receiving Waters: Fingerprints, Driving Factors and Ecological Impacts

Water Research, Год журнала: 2025, Номер 282, С. 123629 - 123629

Опубликована: Апрель 11, 2025

Язык: Английский

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The Migration and Pollution Risk of Microplastics in Water, Soil, Sediments, and Aquatic Organisms in the Caohai Watershed, Southwest China

Water, Год журнала: 2025, Номер 17(8), С. 1168 - 1168

Опубликована: Апрель 14, 2025

The migration and driving factors of microplastics (MPs), as an emerging pollutant, have been reported in plateau lakes. However, whether MPs can accumulate to extreme degree the local aquatic organisms lakes remains unclear. Therefore, present study mainly aims investigate accumulated tissues grass carp well reveal their processes Caohai watershed, a typical lake southwest China. Density flotation (saturated NaCl solution) laser direct infrared imaging spectrometry were used analyze relative abundance morphological characteristics MPs, respectively. results showed that MPs’ soil, water, sediments ranged from 1.20 × 103 1.87 104 n/kg, 9 223 n/L, 5.00 102 1.02 contents composition forestland soils more plentiful comparison with cultivated land marshy grassland soils. Polyethylene (PE), polyvinylchloride (PVC), PA caprolactam (PA6), hexamethylene diamine adipic acid (PA66) detected carp, PE was all organs carp. MP concentrations stomach, intestines, tissue, skin, gills 54.94 178.59 mg/kg. pollution probably originated anthropogenic (road traffic, farming activities, habits residents scattered around area, etc.) due watershed’s considerable proximity Weining city. In addition, wind, runoff, rivers, atmospheric deposition locality directly indirectly promoted migration. Our suggested although there is moderate sediment, other areas, it necessary pay attention PVC via various environmental media risks associated consuming government make several policies reuse recycle agricultural film alleviate pollution.

Язык: Английский

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Microplastics and tyre wear particles in urban runoff from different urban surfaces

The Science of The Total Environment, Год журнала: 2025, Номер 980, С. 179527 - 179527

Опубликована: Апрель 29, 2025

Язык: Английский

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An integrative analysis of microplastics in spider webs and road dust in an urban environment–webbed routes and asphalt Trails

Journal of Environmental Management, Год журнала: 2024, Номер 359, С. 121064 - 121064

Опубликована: Май 1, 2024

• Microplastics (10–500 μm) are quantified in road dust and spider webs using FPA-μFTIR imaging. A novel sampling device (Dusty) for collecting samples is presented. Spider a cost-effective simple-to-prepare proxy monitoring airborne microplastic pollution. An indoor enclosed parking lot exhibited counts 31 times higher than an outdoor lot.

Язык: Английский

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The difference between tire wear particles and polyethylene microplastics in stormwater filtration systems: Perspectives from aging process, conventional pollutants removal and microbial communities

Environmental Pollution, Год журнала: 2024, Номер 361, С. 124736 - 124736

Опубликована: Авг. 13, 2024

Язык: Английский

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Study of Electrode Design and Inclination Angle for Superior Droplet-Driven TENG Performance

Nano Letters, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 25, 2024

The urgent need for efficient water energy harvesting has led to the development of triboelectric nanogenerators (TENGs). In this study, considering droplet spreading dynamics and capacitive effects in a droplet-driven TENG (DD-TENG) device, an inverse relationship between width top electrode output voltage was derived first time through circuit model experimentally verified. Additionally, key performance parameters were optimized, including types widths electrodes, dropping height, inclination angle solution types. A nonmonotonic device established. Under optimal conditions, DD-TENG achieved 1133% increase compared that without electrode. power density reached 1265 mW·m–2, which is among state-of-the-art devices. These findings provide valuable insights improvement DD-TENGs.

Язык: Английский

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