Good air vs bad air days in Saigon
There is a big difference between the good air days in Saigon and the bad air days. See for yourself?

Saigon is experiencing more bad air days with PM 2.5 levels above 150 AQI. Below is a photo from my apartment to Phu My Hung. Notice that the Phu My Hung Bridge on the top photo. Below it disappears. It is only 5 km away.
