American Lung Association: 2022 Most Polluted Cities

[rnc2mbfl]

We may sweat a lot in Miami but our air is cleaner.

[Bluefox]

I wonder if the humidity has an effect on it, or if the flatter geography in much of the Eastern US makes it easier for pollution to move along and not get stuck in various places like out West.

[nadnerb]

Originally Posted by Bluefox

I wonder if the humidity has an effect on it, or if the flatter geography in much of the Eastern US makes it easier for pollution to move along and not get stuck in various places like out West.

Mountainous topography definitely has an impact by trapping pollutants in valleys/basins, which is where most western metros are located.

It seems like rain also helps a lot with air pollution. This probably explains why Portland and Seattle have much better ozone scores than other western metros.

[Arcenal813]

Originally Posted by Bluefox

I wonder if the humidity has an effect on it, or if the flatter geography in much of the Eastern US makes it easier for pollution to move along and not get stuck in various places like out West.

Flat landscape coupled with wind flows and whatnot. Florida, despite its dense population, has clean air, thanks to its geography and topography.