Should be common sense that air pollutants are going to cause respiratory problems… Then cancer.
I read somewhere that Chinese govt would bring those with cancer to a colony. Not sure why they would do that, but it totally undermines the problem and only hides or masks it.
I miss the days when i would run on a trail breathing sweet forest air and hear grasshoppers cricket. No way of risking my body with this air pollution… Indoor cardio is where it’s at now…