Nepal is in the top ten polluted countries measured by PM2.5. https://kathmandupost.com/climate-environment/2020/10/21/one-more-report-ranks-nepal-among-most-po

Nepal is in the top ten polluted countries measured by PM2.5. https://kathmandupost.com/climate-environment/2020/10/21/one-more-report-ranks-nepal-among-most-polluted-countries-in-the-world https://kathmandupost.com/climate-environment/2020/10/21/one... At that level, things outside just get dirty.