A Rickshaw driver wears mask to prevent air pollution in Kathmandu, Nepal, March 20, 2017. According to reports, people are mostly affected by air pollution due to the reconstruction of houses, the road expansion projects, the Melamchi water supply project, and increasing number of vehicles. (Xinhua/Sunil Sharma)
Nepalese girls walk with masks on the streets in Kathmandu, Nepal, March 20, 2017. According to reports, people are mostly affected by air pollution due to the reconstruction of houses, the road expansion projects, the Melamchi water supply project, and increasing number of vehicles. (Xinhua/Sunil Sharma)