Damn, I’m about to go to Mexico City—was planning to stay for a few months, but I hate dirty air. Is it like that all over the city, or just certain parts?
Mexico City sits in a former volcano, so the air pollution of one of the world's largest metropolitan areas is trapped in there.
It's a valley, not a volcano.
I stayed for a week for work ( lot of traffic that seemed typical after walking around, San Miguel Chapultepec, Mexico City, Federal District) in mornings when I awoke and blew my nose into paper tissue it was dark with the dirt? filtered by I guess my nose/respiratory system.
This has never happened to me in Northern California or living near downtown Houston/Austin, Texas.
That happens to me when I was living in London too.
It's definitely better/worse in some areas. Condesa is probably your best option.
Cool, that’s where I’ll be staying. That’s reassuring.