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Learn how to reduce your exposure to harmful smoke from wildfires.
Particles found in smoke
When a wildfire is burning, its smoke contains gasses and tiny particles from everything consumed by the fire – not just trees and plants, but also metals, plastics and building materials.
The smoke includes harmful gasses like carbon monoxide and tiny particles of byproducts from burned material, which can get into your eyes and deep into your lungs.
Exposure to these gasses and particle pollution can cause or worsen health problems.
Wildfire smoke can affect anyone. Even if you are a healthy adult, your breathing can be harmed by this kind of pollution. People who live thousands of miles away from a wildfire can also be impacted by the smoke. The people at greatest risk of harm are children, the elderly and people with lung or heart disease.