Microplastics Are Literally Raining from the Sky—Even in Remote Mountains

5. Sources of Microplastics in the Atmosphere

Microplastics in the atmosphere originate from a variety of sources, including synthetic fibers from clothing, tire wear particles, fragments from plastic packaging, and microbeads found in personal care products.
Everyday activities, industrial operations, and the gradual breakdown of larger plastics all contribute to the release of these tiny pollutants into the air.
Urban areas, busy roads, and landfills are particularly significant contributors.
Once airborne, microplastics can travel immense distances before eventually settling.
For a comprehensive overview, see the European Environment Agency.