There are also weather conditions that reduce air flow, sometimes for days at a time, where very little wind blows and a bubble of air keeps a lot of the pollution over the city.
There are also weather conditions that reduce air flow, sometimes for days at a time, where very little wind blows and a bubble of air keeps a lot of the pollution over the city.
Fermion@feddit.nl 2 weeks ago
Salt Lake City is a notable example of a spot where cold air gets trapped by the surrounding topography in the winter.