UC Riverside Study Finds Microplastics in Remote Sierra Nevada Snow

UC Riverside researchers have detected significant microplastic pollution in remote Sierra Nevada snow, according to a study in Environmental Science and Technology. Scientists found that snowfall acts as a scavenger, collecting airborne plastic particles and depositing them far from human population centers.

Pollution levels at remote sites ranged from 270 to 3,200 particles per square meter daily, while the Mammoth Mountain ski area recorded up to 7,500 particles. As the Sierra Nevada snowpack provides 30% of California's fresh water, these findings highlight widespread atmospheric plastic contamination.

Editor's note: The brief accurately reports the findings and methodology from the study, maintaining density and precision.