Mid-Atlantic getting heavy smoke from Canadian WIldfires. Comparison to clear fall day in October '22.

[Tigger]

The particulates in heavy smoke can clog up air cleaners and cabin air filters over time.
The finest particulates can get through filters and cause some contamination of the oil which can add to wear when it gets into bearings. I did some microscopic work with a tribologist (friction and wear materials scientist), examining damge from contaminated engine oils.
The contamination from the particulates in smoke and smog in minimal compared to the dust and dirt from desert racing.

Thank you for the detailed answer, yet putting it in terms I understood.

I hope all is ok for our Canadian friends!

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[MJE]

https://fire.airnow.gov/

Here's an interesting map for you guys that I've used at work before. If you're in a red or yellow zone, stay inside as much as possible. This stuff is pretty irritating to your throat and lungs.

Great map! Thanks for sharing.

 

[DahliaDarlin']

Driving through northern NH on our way to Maine, July 1st. The smoke was back. No comparative picture, but it was a dry day that should have otherwise been sunny. The mountains (hills to the Westerners among us) should have been clearly visible. The smoke caught in my throat and I lost my voice for a bit. You can imagine my DH's horror.

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