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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.
Abstract Airborne microplastics (AMP) are microplastic particles suspended and transported in the atmosphere. AMP are now recognized as prevalent pollutants in both indoor and outdoor environments. Originating primarily from human activities, their widespread presence raises concerns due to potential risks to human health and the environment, making their study essential. This chapter examines the sources of AMP in outdoor and indoor settings and their movement through the atmosphere and within enclosed spaces. It also reviews current methods for sampling, treatment, and analysis, emphasizing the importance of methodological comparability and reproducibility. Differences in AMP occurrence, abundance, morphology, composition, and temporal variation between environments are discussed. Finally, the chapter briefly addresses human exposure pathways, associated health risks, and environmental impacts.
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Physico-Chemical Characteristics, Instrumental Analyses, and Transportation of Airborne Microplastics
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This review paper pulls together what scientists currently know about tiny plastic particles floating in the air we breathe, both indoors and outdoors. These particles come from sources like clothing fibers, tire wear, and ocean spray, but researchers still don't fully understand how much we're exposed to or what it means for our health. The takeaway: airborne microplastics are everywhere, and more research is needed to know the real risks.
Airborne Microplastics: A Review Study on Method for Analysis, Occurrence, Movement and Risks
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This review summarizes methods for sampling, identifying, and quantifying airborne microplastics in indoor and outdoor environments, noting that only seven studies had been published by the time of writing. Airborne microplastics are an important exposure route because people breathe them continuously, and early studies show they are ubiquitous in both indoor and outdoor air.
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.
Microplastics Aloft: A comprehensive exploration of sources, transport, variations, interactions and their implications on human health in the atmospheric realm
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This review summarizes research on airborne microplastics and finds that indoor environments typically contain far more microplastic particles than outdoor air -- up to 760,000 particles per square meter per day indoors versus a maximum of about 1,159 outdoors. Sources include synthetic clothing, plastic manufacturing, and even ocean spray. Inhaled microplastics can reach deep into the lungs and potentially enter the bloodstream, raising concerns about respiratory and cardiovascular health effects.
The Pollution of Atmospheric Microplastics and Their Potential Risks to Humans
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This review summarizes what is known about airborne microplastics—tiny plastic particles floating in the air we breathe—including their sources, distribution, and potential health risks. Fibers are the most common form found in air, and inhalation is an important but underestimated route of human microplastic exposure.
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