Outdoor air quality - wildfire

[BigAl07]

Do you know what is burning? Trees are fine. Issues I’ve seen working wildfires is homes who's wood has been treated. Old home ~1900 sometimes have their wood treated with arsenic and homes in the mid 1900s may contain asbestos. Don't know how those would affect a tank but I'd guess arsenic is bad and asbestos probably is only bad for your health.

That's fairly accurate except, CCA (Copper Chromium Arsenate) was still widely used in wood treatments up until 2004. In 2003 the US Lumber Industry voluntarily (Volun-Told LOL) stopped using CCA in residential wood treatment but it was still used for Commercial Only applications. To this day, it's still used for Commercial Specific Applications such as Utility Poles, Bridges, Industrial & Agricultural Uses, and Foundation Support Beams.

It's also used in Residential applications such as: Shingles, Shakes, and some other very specific applications. One brand that is still used today is SupaTimber.