The quantification of the airborne plastic particles of 0.43–11 μm: Procedure development and application to atmospheric environment

Chemosphere, Journal Year: 2024, Volume and Issue: 351, P. 141131 - 141131

Published: Jan. 6, 2024

Language: Английский

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Characteristics and quantification of small microplastics (<100 µm) in seasonal svalbard snow on glaciers and lands

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 467, P. 133723 - 133723

Published: Feb. 10, 2024

Small microplastics (SMPs < 100 µm) can easily be transported over long distances far from their sources through the atmospheric pathways and reach even remote regions, including Arctic. However, these sizes of MPs are mostly overlooked due to different analytical challenges; besides, depositions, such as snow unknown. The spatial variability in bulk samples was investigated for first time distinct sites (e.g., glaciers) near Ny Ålesund, world-known northernmost permanent research settlement Svalbard Islands, better comprehend presence SMP pollution snow. Seasonal deposited tundra summits glaciers were also sampled. A sampling procedure designed obtain representative while minimizing plastic contamination, thanks rigorous quality assurance control protocol. SMPs' weight (µg L-1) deposition load (mg SMPs m-2) result being lower glaciers, where they may subject long-range transport. minimum length 20 µm, with majority less than µm. Regarding size distribution, there an increase deriving local input human scientific settlement. some polymers might site-specific relation that affect distribution at studied. Also, surface layer collected same evaluate during specific events, results confirmed higher compared glaciers. will enhance limited knowledge polar compartments processes. issue regions has been addressed by several working g, e.g., Arctic Council, since become a global priority. MPs, specifically SMPS, considered hazardous materials because have toxic effects additives pollutants adsorbed/absorbed on surface. Their role altering climate process ( ice/snow melting, ocean air circulation, enhancing ice nucleation, cloud formation) significantly ecosystems, biological communities implications entire food chain.

Language: Английский

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The fate of post-use biodegradable PBAT-based mulch films buried in agricultural soil

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 948, P. 174697 - 174697

Published: July 15, 2024

The fate of black biodegradable mulch film (MF) based on starch and poly(butylene-adipate-co-terephthalate) (PBAT) in agricultural soil is investigated herein. Pristine (BIO-0) UV-aged samples (BIO-A192) were buried for 16 months at an experimental field southern Italy. Visual, physical, chemical, morphological, mechanical analyses carried out before after burial. Film residues the form macro- microplastics analyzed end trial. Progressive deterioration both pristine samples, with surface loss alterations properties, occurred from 42 days After 478 days, apparent BIO-0 BIO-A192 films decreased by 57 % 66 %, respectively. Burial determined a rapid depletion polymeric blend, especially BIO-A192, while degradation polyester phase was slower. Upon burial, enrichment aromatic moieties PBAT observed, as well release to soil. analysis MF products extracted (0.006–0.008 mass samples) revealed predominant presence adipate moieties. about 23 17 initial amount respectively, This comprehensive study underscores complexity biodegradation phenomena that involve new generation field. different biodegradability components, climate, conditions did not strictly meet parameters required standard test method devised MFs, have significantly influenced their rate. finding further emphasizes importance implementing experiments accurately assess real effects MFs health overall agroecosystem sustainability.

Language: Английский

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Microplastic contamination in the agri-food chain: The case of honeybees and beehive products

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 948, P. 174698 - 174698

Published: July 10, 2024

Microplastics, MPs, plastic fragments with a dimension lower than 5 mm, and microfibers, MFs, synthetic natural/artificial fibrous diameter 50 μm, are ubiquitous pollutants identified in different environmental compartments. In this work the occurrence of MPs MFs on honeybees, Apis mellifera, beehive products was evaluated, using Fourier transform infrared microspectroscopy, confirming that widely present as air contaminants all apiary's areas (high low urbanized areas) Southern Italy. Results indicated independently from site, both honeybees honey samples, contaminated by non-natural color. The majority were natural origin followed artificial MFs. Moreover, chemical composition isolated reflect used fabrics, leading to hypothesis they released textile where captured bees. highlight represent class airborne anthropogenic pollutants. identification polytetrafluoroethylene, PTFE, confirm recent findings PTFE diffuse soil while polyethylene, PE, based density urban sites, could be correlated large use PE agriculture. also polycaprolactone, PCL, identified, mainly high biodegradable materials further environments. results indicate during their flights or picking up hive components, flowers, other nest mates, clothes beekeeper, among others some them transferred samples affected contamination.

Language: Английский

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Spatial and seasonal variations of atmospheric microplastics in high and low population density areas at the intersection of tropical and subtropical regions

Environmental Research, Journal Year: 2024, Volume and Issue: unknown, P. 119996 - 119996

Published: Sept. 1, 2024

Language: Английский

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Assessing the impact of marine litter hotspot on atmospheric microplastics: A study of a coastal village

Environmental Pollution, Journal Year: 2025, Volume and Issue: 368, P. 125699 - 125699

Published: Jan. 15, 2025

Language: Английский

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Human external and internal exposure to micro(nano)plastics

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

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Aerosol mass concentrations and dry/wet deposition of atmospheric microplastics at a remote coastal location in New Zealand

Environmental Pollution, Journal Year: 2025, Volume and Issue: 372, P. 126034 - 126034

Published: March 14, 2025

Language: Английский

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The knowns and unknowns in our understanding of how plastics impact climate change: a systematic review

Frontiers in Environmental Science, Journal Year: 2025, Volume and Issue: 13

Published: April 8, 2025

Plastic pollution and climate change are two major environmental issues of this century, with implications for ecosystem health, the economy, humankind. Plastics have potential to affect in multiple ways, yet we lack a thorough understanding what data on phenomenon where knowledge gaps are. Here, conducted systematic review assemble answer question: How do plastics impact through three mechanisms–emissions greenhouse gases across lifecycle, interference Earth’s carbon sinks, radiation budget? We searched all 14 databases Web Science relevant articles, amended pool articles from manual reference searching expert elicitations. Using rigorous inclusion exclusion criteria, including non-peer reviewed studies minimize risk bias, ultimately selected 143 our - 36 lifecycle gas emissions papers, 83 sink 24 budget papers. Based current available data, found that can emit up gigatonnes dioxide equivalents per year, most being produced at primary production product manufacture stages. From existing studies, identified more instances negatively affecting sequestration than vice versa . radiative impacts predominantly cooling nature. The body evidence is incomplete research needed confirm these findings fill gaps. Future work should prioritize quantifying transportation, consumption, unmanaged waste stages lifecycle. need examine coastal blue ecosystems marine endpoints, examining direct forcing via aerosols, cloud properties, albedo/melting rate surfaces ice/snow. Immediate action required decarbonize full accounting scenarios, inventories, models geographies sectors.

Language: Английский

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Innovative Sample Preparation Strategies for Emerging Pollutants in Environmental Samples

Annual Review of Analytical Chemistry, Journal Year: 2025, Volume and Issue: 18(1), P. 73 - 95

Published: May 15, 2025

Sample treatment plays a crucial role in ensuring accurate analysis of contaminants aqueous, gaseous, and solid matrices. Emerging such as microplastics poly- perfluoroalkyl substances pose challenges due to their ubiquity potential adverse effects on the environment human health. By setting stringent guidelines, environmental protection agencies drive research innovation analytical methodologies. However, current reference methods are based traditional techniques with high use chemicals considerable waste generation. This review highlights importance advanced techniques, including solid-phase extraction microextraction methods, enhanced by novel materials, for preparing samples. Additionally, it discusses innovative formats devices, drone-based systems three-dimensional-printed which expanding scope monitoring. aims provide comprehensive overview trends advances sample preparation over past five years, offering insights into progress made future directions.

Language: Английский

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