OPEN DUMPING AND BURNING: AN OVERLOOKED SOURCE OF TERRESTRIAL MICROPLASTICS IN UNDERSERVED COMMUNITIES DOI Creative Commons
Kendra Z. Hess,

Kyle Forsythe,

Xuewen Wang

et al.

Published: Aug. 22, 2024

Open dumping and burning of solid waste are widely practiced in underserved communities lacking access to management facilities; however, the generation microplastics from these sites has been overlooked. We report elevated concentrations (MPs) soil three open dump burn sites: a single-family site Tuttle, Oklahoma, USA, two community-wide Crow Agency Lodge Grass, Montana, USA. extracted, quantified, characterized MPs depths (0-9 cm 9-18 cm). The abundance particles found at (35,000 69,200 kg-1 soil) equals or exceeds reported currently understood sources including biosolids application other agricultural practices. Attenuated total reflectance Fourier transformed infrared (ATR-FTIR) identified polyethylene as dominant polymer across all (46.2%-84.8%). also detected rayon (≤11.5%), polystyrene (up 11.5%), terephthalate (≤5.1), polyvinyl chloride (≤4.4%), polyester (≤3.1), acrylic (≤2.2%). Burned accounted for 76.3 96.9% both community wide sites. These results indicate that activities major source thermally oxidized surrounding terrestrial environment with potential negatively affect communities.

Language: Английский

Microplastics in coastal and marine environments: A critical issue of plastic pollution on marine organisms, seafood contaminations, and human health implications DOI Creative Commons

Rebecca Muniz,

Md Saydur Rahman

Journal of Hazardous Materials Advances, Journal Year: 2025, Volume and Issue: unknown, P. 100663 - 100663

Published: Feb. 1, 2025

Language: Английский

Citations

2
Nanoplastics in aquatic environments: The hidden impact of aging on fate and toxicity DOI Creative Commons
Rega Permana, Swaroop Chakraborty, Eugenia Valsami‐Jones

et al.

Environmental Chemistry and Ecotoxicology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

1
New Insights in Microplastic Cellular Uptake Through a Cell-Based Organotypic Rainbow-Trout (Oncorhynchus mykiss) Intestinal Platform DOI Creative Commons
Nicole Verdile, Nico Cattaneo, Federica Camin

et al.

Cells, Journal Year: 2025, Volume and Issue: 14(1), P. 44 - 44

Published: Jan. 3, 2025

Microplastics (MPs) in fish can cross the intestinal barrier and are often bioaccumulated several tissues, causing adverse effects. While impacts of MPs on well documented, mechanisms their cellular internalization remain unclear. A rainbow-trout (Oncorhynchus mykiss) platform, comprising proximal distal epithelial cells cultured an Alvetex scaffold, was exposed to 50 mg/L (size 1–5 µm) for 2, 4, 6 h. MP uptake faster RTpi-MI compared RTdi-MI. Exposure microplastics compromised integrity by disrupting tight-junction protein zonula occludens-1, inducing significant decreases transepithelial-electrical-resistance (TEER) values. Consequently, were internalized fibroblasts. The expression genes related endocytosis (cltca, cav1), macropinocytosis (rac1), tight junctions’ formation (oclna, cldn3a, ZO-1) analyzed. No differences observed cltca, oclna, cldn3a expression, while upregulation cav1, rac1, ZO-1 detected, suggesting as route internalization, since also cav1 indirectly this mechanism. obtained results consistent with data previously reported vivo, confirming its validity identifying pathways. This could help develop strategies mitigate absorption through ingestion.

Language: Английский

Citations

0
Microplastics generation from flooring materials under UV Exposure: A comprehensive analysis of microplastics emission and chemical deformation DOI

Won Duk Suh,

Ho Hyeon Jo, Young Choi

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 138194 - 138194

Published: April 1, 2025

Language: Английский

Citations

0
Emerging investigator series: OPEN DUMPING AND BURNING: AN OVERLOOKED SOURCE OF TERRESTRIAL MICROPLASTICS IN UNDERSERVED COMMUNITIES DOI Creative Commons
Kendra Z. Hess,

Kyle Forsythe,

Xuewen Wang

et al.

Environmental Science Processes & Impacts, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Open dumping and burning of solid waste are widely practiced in underserved communities lacking access to management facilities. The generation microplastics from these sites has been overlooked.

Language: Английский

Citations

1
OPEN DUMPING AND BURNING: AN OVERLOOKED SOURCE OF TERRESTRIAL MICROPLASTICS IN UNDERSERVED COMMUNITIES DOI Creative Commons
Kendra Z. Hess,

Kyle Forsythe,

Xuewen Wang

et al.

Published: Aug. 22, 2024

Open dumping and burning of solid waste are widely practiced in underserved communities lacking access to management facilities; however, the generation microplastics from these sites has been overlooked. We report elevated concentrations (MPs) soil three open dump burn sites: a single-family site Tuttle, Oklahoma, USA, two community-wide Crow Agency Lodge Grass, Montana, USA. extracted, quantified, characterized MPs depths (0-9 cm 9-18 cm). The abundance particles found at (35,000 69,200 kg-1 soil) equals or exceeds reported currently understood sources including biosolids application other agricultural practices. Attenuated total reflectance Fourier transformed infrared (ATR-FTIR) identified polyethylene as dominant polymer across all (46.2%-84.8%). also detected rayon (≤11.5%), polystyrene (up 11.5%), terephthalate (≤5.1), polyvinyl chloride (≤4.4%), polyester (≤3.1), acrylic (≤2.2%). Burned accounted for 76.3 96.9% both community wide sites. These results indicate that activities major source thermally oxidized surrounding terrestrial environment with potential negatively affect communities.

Language: Английский

Citations

1