China to name and shame top ten worst - polluting cities each month . ' Air quality control is ecological red ##ress , ' says Chinese vice - premier . Beijing , Tianjin , cities in northern China have signed plan to speed up air pollution control . `` It all might be more symbolic because when you look at the regional or local level , growth is measured by GDP , not by how environmental the city has become . Seven of world 's top ten most worst - polluted cities in China , says ADB officials .
China to name and shame top ten worst - polluting cities each month . ' Air quality control is ecological red ##ress , ' says Chinese vice - premier . Beijing , Tianjin , cities in northern China have signed plan to speed up air pollution control . Seven of world 's top ten most worst - polluted cities in China , says ADB officials .