If you living under this kind of sky long enough, you'll get use to it and may even forgot what normal air looks like. On a online forum of my home town (At So

If you living under this kind of sky long enough, you'll get use to it and may even forgot what normal air looks like. On a online forum of my home town (At Southern China), people often post images they took at a day with 200+ PM 2.5 reading, and call it a good day just because it's sunny. And yes, sometime we have reading way over 200+ at south too, like this photo I took back in 2015 (PM 2.5 ~500): https://goo.gl/9NADxM https://goo.gl/9NADxM Luckily though, at south, we may have better air during summer (PM 2.5 ~70). And when that happens, the sky look like this: https://goo.gl/nzopX3 https://goo.gl/nzopX3. The government's work had it's effect, but currently they only able to reduce the amount of (heavily) polluted days, rather than kill the pollution all together. Personally, I think, regardless what the government trying to do, until we switched to cleaner energy sources and industries, that smog over there ain't go anywhere.