- Scientists have warned that microplastic and nanoplastic particles are raining down on Mount Everest year-round via atmospheric circulation.
- A study by Chinese researchers found that the Tibetan Plateau could be accumulating an estimated 56 tonnes of airborne microplastics annually at altitudes above 4,000 metres.
- Monitoring showed that Qomolangma Station recorded 64 microplastic particles per square metre daily, significantly higher than the 23 recorded at Everest Base Camp.
- Researchers found that monsoon periods increased plastic deposition, as rain, snow, or mist pull atmospheric particles down to the mountain's surface.
- The findings highlight potential ecological risks as ultra-small plastic fragments reach even the most remote high-altitude environments beyond direct tourism.
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