About AIRNow | AIRNow Partners | FAQs | Contact Us
Search:
Zip Code:
State:

Frequent Questions

What is in wildfire smoke?

  • Smoke is a complex mixture of carbon dioxide, water vapor, carbon monoxide, particles, hydrocarbons and other organic chemicals, nitrogen oxides, and trace minerals.
  • Fine particles are the principal pollutant of concern from wildfire smoke for short-term exposures (hours to weeks).
Have more questions? Submit a request