Is it though? Have you been there or lived in a place with high smog and low air quality? Do you or your child have asthma? I made the comment simply as a note of the current condition - you sometimes literally can have a hard time seeing the city skyline in Beijing and I’ve never been to places like Hotan and other more industrial areas where it is worse.

Living or even visiting a place and saying it’s the trend that matters sounds like politician speak. Tell that to your lungs and brain while you sit in the pollution.