"High levels of ozone happen in the Upper Green River Basin only during the winter. They result from a combination of gas industry emissions, snow on the ground, bright sunshine and temperature inversions, in which cool air near the ground is trapped by a layer of warmer air. Pollution builds up during the day and becomes visible above the horizon as a thin layer of brown smudge — smog — by midafternoon."

"It's not the kind of smog that clouds and chokes the air at ground level."

I'm no expert but i dont think its going to affect wyoming game.

http://www.flatheadbeacon.com/articl...em_smog/22159/