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The intoxicating beauty: Ji’nan Blue.
What an intoxicating beautiful sky after an overnight rain! At 9:00 on 20th the citizens living in the western Ji’nan surprisingly found a pure blue sky! According to the data displayed on the air quality monitoring platform , the AQI (air quality index)of Ji’nan was excellent basically , the average AQI was 29 and 22 an hour later. Meanwhile the concentration of PM 2.5( Particulate Matter 2.5) that was monitored on Quancheng Square branch monitoring platform was even in the single digits, catching up with the air quality in Yantai, Weihai and Qingdao, the coastal cities.