Mon. Oct 3rd, 2022

Posted on 13 January 2013. Tags: Beijing, historically, index, maximum, measures, pollution, quality, Video

96cce__beijing__default-4

On the night of January 12, 2013, the US Embassy’s air quality index in Beijing actually measured 886 on PM2.5 particles. For more info: beijingcream.com Source: v.youku.com

By admin