Beijing government has vowed that by 2020 the city's annual average density of the fine particulate matter PM2.5 will have decreased by 30 percent.

According to the city's environmental protection plan for the 2016-2020 period, which was approved Tuesday, the average concentration of PM2.5 will be around 56 micrograms per cubic meters in 2020, 30 percent lower than that of 2015.

The number of days with good air quality will be above 56 percent in 2020.

The city will further shift from burning coal to using gas, electricity and solar power. By 2020, the city will have removed all coal burning boilers and the proportion of clean and high-quality energy will be above 90 percent.

In addition, more cars with high emissions will be banned from the roads.

At the same time, the city will continue to address water and soil pollution. In 2020, the city's total water use will be within 4.3 billion cubic meters.

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