Beijing Air Pollution Chart: Near Real-time Air Quality Index (AQI). Source: http://aqicn.org/city/beijing/
The PM2.5 pollution in Beijing rocketed off the chart again earlier today, hitting the 614 mark, as dense smog enveloped the entire city.
A health alert is issued at a level above 300 because the pollution becomes hazardous to health, and everyone may experience serious health effects.
Last year Beijing reported 58 days of mega pollution, an average of more than one day each week, according to an official, Xinhua reported.
This year, sky is no limit!