BEIJING (Reuters) - Some northern Chinese cities failed to improve air quality by much last month, hitting the smog-prone region's overall results in a drive against pollution, the government said as it warned provincial officials to comply with stringent steps to clear the skies.
"Some cities did not improve air quality by much or even experienced some volatility, and in a way, they have dragged down the regional air quality level," Ministry of Environmental Protection (MEP) spokesperson, Liu Youbin, said at a regular briefing on Thursday.
