A woman wearing a mask rides a bicycle on Bai Causeway. The Department of Environmental Protection of Zhejiang Province issued a blue smog alert on January 26 for the first time in the history of the province as severe air pollution persisted for seven days. The PM2.5 reading reaching 258 micrograms per cubic meter or “heavily polluted” in Hangzhou. Visibility in central and northern Zhejiang dropped to as low as 400 meters in some places.
Source: Shanghai Daily