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Microplastics and Nanoplastics in the Atmosphere: Sources, Transformation, Deposition and Their Potential Role as Cloud Condensation Nuclei
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This review summarizes existing published studies on tiny plastic particles (microplastics and nanoplastics) in the air: where they come from, how they change over time, and whether they can help form clouds. It also points out gaps in current research and suggests areas for future study.
This project presents a PRISMA 2020-compliant systematic review titled "Microplastics and Nanoplastics in the Atmosphere: Sources, Transformation, Deposition and Their Potential Role as Cloud Condensation Nuclei."The review systematically identifies, screens, and synthesizes published experimental studies on the sources of atmospheric micro- and nanoplastics, their transformation through atmospheric aging processes, and their potential to act as cloud condensation nuclei. Outcomes include photochemical oxidation, hygroscopic growth, cloud condensation nuclei and ice-nucleating agents. The objective is to summarize the available evidence, evaluate current research trends, identify knowledge gaps, and provide recommendations for future studies on atmospheric micro- and nanoplastics.
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Potential impacts of atmospheric microplastics and nanoplastics on cloud formation processes
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Researchers investigated how atmospheric microplastics and nanoplastics could act as cloud condensation nuclei or ice nucleating particles, potentially affecting cloud formation, precipitation patterns, and Earth's radiation balance at sufficient concentrations.
An Atmospheric Chemistry Perspective on Airborne Micro- and Nanoplastic Particles
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This perspective paper highlights that airborne micro- and nanoplastics are an understudied form of air pollution that undergoes chemical changes in the atmosphere, potentially making the particles more harmful when inhaled. The authors call for atmospheric scientists and microplastic researchers to work together to better understand health risks from breathing in these particles.
Adsorption-Driven Cloud Droplet Activation of Fresh and Aged Polypropylene Particles
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Scientists found that tiny plastic particles in the air can help form clouds and potentially affect weather patterns. When these plastic particles get weathered by sunlight and air pollution, they become much better at attracting water droplets to form clouds compared to fresh plastic particles. This matters because microplastics are now everywhere in our atmosphere, and understanding how they change weather and climate could help us better predict environmental changes that affect human health and agriculture.
Atmospheric Microplastics and Nanoplastics: A Systematic Review of Sources, Transport, Chemical Transformation, Pollutant Interactions and Climate Implications
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Tiny plastic particles from car exhaust, synthetic clothing, and industrial waste don't just pollute land and water—they're floating in the air we breathe, and this review pulls together what scientists currently know about them. These particles can travel long distances, break down into even smaller nanoplastics, and pick up toxic chemicals like heavy metals and "forever chemicals" (PFAS) along the way, potentially making them more harmful when inhaled. While researchers agree this airborne plastic pollution likely affects both our health and the climate, they say better tools are still needed to fully measure the risks, so this remains an area to watch r
Microplastics in cloud cycles: Systematic review and the role of hybrid technology
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This review summarizes 62 studies on tiny plastic particles found in the air, mostly fibers smaller than 100 micrometers. It describes how city pollution releases these particles, wind patterns carry them long distances, and they may interact with clouds, though direct evidence of this remains limited. New sensing and cleanup technologies exist but have not yet been tested in real atmospheric conditions.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.