Science

Fresh as the microplastic-laden Sierra snow: Storms can deliver pollution to even remote locations

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Briefings

UC Riverside scientists measured microplastic pollution in Sierra Nevada snowstorms, finding significant amounts even in remote areas. This study marks the first direct measurement of microplastic deposition on the Sierra during snowfall events, revealing that pollution can reach isolated regions despite expectations of low contamination.

Key points

• Scientists at UC Riverside measured microplastic pollution in Sierra Nevada snowstorms for the first time.
• Significant amounts of microplastics were found in remote locations despite low expectations for contamination.

Context

This research provides the first direct measurement of microplastic deposition on the Sierra Nevada during snowfall events, revealing that pollution can reach isolated regions despite expectations of low contamination.

Limitations

The study relies on limited snowstorm data and lacks broader regional context or long-term trends.

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