BEIJING, Dec. 7 -- China's State Council on Thursday published an action plan to improve air quality amid the country's effort to promote high-quality economic development.

The plan contains a series of measures to achieve bluer skies by 2025, such as propelling green industrial shifts, building a cleaner energy mix, and developing a low-carbon transport system.

Its goals are to reduce PM2.5 density in cities at the prefecture level and above by 10 percent by 2025, compared to the 2020 level; to control the proportion of days each year with heavy air pollution to 1 percent or less; and to cut emissions of nitrogen oxides and volatile organic compounds by over 10 percent.

The plan lists the Beijing-Tianjin-Hebei region and its surrounding areas, as well as the Yangtze River Delta region and the Fenwei Plain, as key areas.

China will ban new steel production capacities, accelerate the removal of outdated capacities in key industries, and foster green industries.

More will be done to develop new and clean energy to ensure that non-fossil energy will account for 20 percent of the country's total energy consumption by 2025. The production and supply of natural gas will also be increased.

New energy vehicles will account for no less than 80 percent of new or updated buses, taxis and other urban public transport vehicles in key areas.

Efforts will also be made to strengthen supervision and law enforcement, improve laws, improve environmental policies and economic policies, and expand international cooperation on atmospheric environment management and desertification prevention and control, according to the plan.