Beijing residents awoke to heavy smog on Thursday, with “hazardous” Air Quality Index (AQI) readings across the capital. The Beijing and national meteorological authorities issued a blue alert as a sandstorm hit the region – the highest level on the warning system. Readings at the Temple of Heaven exceeded 905 on the aqicn.org AQI. The US … Continue reading Smog in Beijing off the charts as sandstorm engulfs capital