Reducing average PM PM.5 annual average of six years of declines over 40% of heavy pollution days 43 days – News of China

Beijing's average PM2.5 annual average increase with more than 40% in severe pollution days, decreased by 43 days –

(Yin Li Narrator) In the six years from 2013 to 2018, the average annual PM2.5 proportion of Beijing decreased by 42.7%; The days grew excellent at 31st day, and the heavy days of pollution went down 43 days.

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