Authorities recommend wearing masks as air pollution engulfs Kathmandu Valley
epa10570529 A person wearing a mask walks past a pollution meter as air pollution engulfs Kathmandu, Nepal, 13 April 2023. According to Air Quality Index (AQI) India, air pollution over the Kathmandu Valley reached hazardous levels on 13 April with the PM2.5 concentration being five times above the recommended limit set by the World Health Organization (WHO). Nepal's Ministry of Health and Population issued a notice recommending citizens to wear masks. EPA/NARENDRA SHRESTHA
