General Discussion
In reply to the discussion: I learned to identify poison ivy at a very early age. I seemed to be especially [View all]ProfessorGAC
(65,010 posts)The smoke is a potentially really serious.
In some people, the toxin directly attacks the respiratory system and mimics a massive asthma attack. Very serious.
In addition, the resin is a branched alkylated catechol. Catechols are considered sensitizing agents, meaning one gets progressively sensitive.
85% of people are actually allergic to this compound. People who haven't gotten the rash are just in the waiting room. Enough times & you'll get it. (Translation-I mean me!)
The smoke concentrates the agent because it's activation energy of combustion is higher than some of the cellulose already burning. The heat volatilizes the urushiol but doesn't burn much. So the smoke is LOADED with it!
Glad you didn't breathe too much of it. Could have been much worse.