Causes Has Utah’s inversion season arrived? Proof is in the pollution. Just look outside. Utah’s inversion season officially started Nov. 1, and, almost on cue, Salt Lake County’s first inversion of 2019-2020 began building that afternoon.
Causes www.freep.com Bogged in smog: Michigan violating EPA's tighter ozone rules Motor vehicle tailpipes and factory smokestacks are providing the ingredients for ground-level ozone, which mixes with sunshine to create smog.
