9 years of development for Beijing-Tianjin-Hebei
chinadaily.com.cn |
Updated: 2023-03-04 06:40
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Strong progress made in coordinated efforts to improve ecological and environmental protection
The average annual PM2.5 concentration in Beijing in 2022 was 30 micrograms per cubic meter, down 66.5 percent from 2013. The quality of ecological and environmental governance has been further improved.
