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Atmospheric Microplastics: Research Progress, Hotspots and Prospects of Global Environmental Problems
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Tiny plastic particles are floating in the air all around us, indoors, outdoors, even in remote places, and we're likely breathing them in every day. This review of over 280 studies finds that while scientists know these particles can travel long distances and get into our lungs, research methods vary so much that we still can't say exactly how much is truly harmful to human health. The takeaway: airborne microplastics are a real and growing concern worth watching, but more consistent research is needed before we know the actual health risks.
Atmospheric microplastics are increasingly recognized as mobile particulate contaminants that can be emitted, resuspended, transported, and deposited across indoor, terrestrial, marine, high-altitude, and remote environments. However, reported abundances and particle characteristics remain difficult to compare because studies differ in sampling design, reporting units, particle-size limits, contamination control, and polymer identification. This review combines concise bibliometric mapping with a critical narrative synthesis. A Web of Science Core Collection search for 2000–2024 retrieved 356 English-language articles and reviews, of which 280 met the eligibility criteria. Publication output increased rapidly after 2020. Co-citation and keyword analyses identified three major themes: occurrence, transport, and deposition; sampling and analytical characterization; and exposure and potential ecological and health implications. The synthesis shows that active air sampling and passive deposition collection measure different atmospheric processes, while inconsistent blank correction, recovery assessment, and polymer confirmation limit inter-study comparability. Field observations and modelling support long-range transport and the importance of particle morphology, but quantitative source attribution remains uncertain. Current evidence supports inhalation exposure and biological plausibility, yet is insufficient to establish population-level risks or causal links with specific diseases. Future research should prioritize harmonized monitoring, stronger QA/QC, improved detection of small particles and nanoplastics, and integrated transport–exposure assessment.
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Atmospheric Microplastics: Perspectives on Origin, Abundances, Ecological and Health Risks
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This review summarizes current knowledge about microplastics in the atmosphere, including their sources, how far they travel, and potential health effects from inhalation. Researchers found that airborne microplastics can carry toxic chemicals deep into the respiratory system and may contribute to respiratory problems and other health concerns. The study emphasizes that atmospheric microplastic pollution remains poorly understood due to a lack of standardized measurement methods.
A review of atmospheric microplastics pollution: In-depth sighting of sources, analytical methods, physiognomies, transport and risks
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This review provides an in-depth analysis of atmospheric microplastic pollution, examining sources, detection methods, physical characteristics, transport mechanisms, and health risks. Researchers found that indoor environments tend to contain higher concentrations of airborne microplastics than outdoor settings, and that current detection methods are limited in their ability to capture the smallest particles. The study emphasizes the need for standardized sampling procedures and more research into the health effects of inhaling microplastic particles.
An Introduction of Airborne Microplastics in Indoor and Outdoor Environments
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Tiny plastic bits called microplastics are floating in the air we breathe, both indoors and outdoors, mostly from everyday human activities. This review pulls together what scientists currently know about where these particles come from, how they travel, and how we might be exposed to them. The health risks are still being studied, but understanding this exposure matters since we're breathing these particles in daily, often without realizing it.
Microplastics as an Emerging Source of Particulate Air Pollution
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This review examines the growing body of research on airborne microplastics as a source of particulate air pollution, covering their sources, transport mechanisms, and presence in both indoor and outdoor environments. Researchers highlight that airborne microplastics can travel long distances and have been found in remote locations far from population centers. The study underscores significant gaps in our understanding of how inhaling these tiny plastic particles may affect human health.
Airborne microplastics: environmental prevalence, human health risks, and mitigation strategies
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This critical review synthesized findings from 156 peer-reviewed papers on airborne microplastics, covering sampling methodologies, environmental prevalence, health hazards, and mitigation strategies. Researchers found that atmospheric microplastic concentrations vary widely across environments and highlighted significant gaps in toxicological research regarding human health effects from inhaled microplastic particles.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.