IF YOU HIKE to the top of Peterson Creek Park on any given day, more so on a cold one, you’ll see a blanket of yellowish, dirty air draped over the valley.
This is not new or unexpected. The surface inversion well-known to these parts increases the effects of air pollution. Whatever is released into that cold air trapped close to the surface, be it vehicle exhaust, mill emissions, or wood smoke, it all stagnates and makes our breathing air a lot worse than it should be.
There is no clear answer as to what is in the yellow plume. Winter smog is a terrible beast made worse by inversion phenomena, but knowing what we breathe in would be good. You can’t fix something if you don’t know where to start or how complex the issue.