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by elboru 2669 days ago
Mexico City is in rank 704, I didn't expect that. I don't know if Mexico City is doing better or if the other 700 cities are nightmares. Well at least the pollution average in the city went down from 2017 to 2018.
4 comments

Mexico City makes my nostrils burn much like the airport region of Guadalajara which sends air quality meters deep into the red zone. On any straight street in Mexico City, the street will quickly terminate into a grey haze.

Can only imagine how bad the 703 worse-ranked cities are to live in.

I was also surprised by that. Mexico City has always been a tough place to keep air pollution in check while still having one of the largest population density in North America. This is especially the case since it is in a valley where pollution gets trapped in.
The ranking is just based on PM2.5 which is just one category of pollution. Could it be that the pollution there is of another type?
Could it be because it has such a high elevation of 7,382 feet?