For the last couple of years I have watched the frequent reports about the air quality worsening in many Chinese cities.
More pictures here.
I became curious about the comparative air quality in Ontario where I live, so I looked it up.
This is news from 2011, but it’s new to me: Sarnia (next to Detroit and London, ON) seems to have the worst; their closely-packed manufacturing plants and oil refineries take a toll on the environment. I don’t want to weigh in on just how much environmental impact there is – it’s controversial and debatable. It’s just something I didn’t know and now do.
I’m reading through the wikipedia links at the bottom trying to find a government report on the chemistry of the air but no luck. I’m not originally from Canada and I don’t know which office is responsible for reporting reliable science data on air quality, I feel like all the other articles aren’t worth reading until I see that one first.
Will probably get bored of researching it but if I find something before I give up I’ll post it in an edit.
Article from Scientific American about China’s plan to spend $16b on cleanup: (link)