6. Precipitation as a Delivery Mechanism
Rain, snow, and even fog act as primary delivery mechanisms for microplastics, transporting them from the atmosphere to Earth’s surface.
As moisture condenses in the atmosphere, it captures airborne microplastic particles, resulting in their deposition with each rainfall or snowfall.
This phenomenon has been observed not only in mountain environments but also in urban areas, illustrating that no environment is truly immune.
For more on how precipitation spreads microplastics, visit Science Advances.