China to name and shame top ten worst-polluting cities each month . ' Air quality control is ecological red line , ' says Chinese vice-premier . It also announced a national blueprint to lower the concentration of harmful particles in the air -- much of it caused by the burning of coal -- by at least 10 % between 2012 and 2017 levels . Beijing , Tianjin , cities in northern provinces have signed plan to speed up air pollution control . ten of world 's top Seven most air-polluted cities in Tianjin , says Greenpeace report .
China to name and shame top ten worst-polluting cities each month . 'Air quality control is ecological red line , ' says Chinese vice-premier . Beijing , Tianjin , cities in northern provinces have signed plan to speed up air pollution control . ten of world 's top Seven most air-polluted cities in Tianjin , says Greenpeace report .