Wildfire Smoke and Pregnancy: Protecting Expecting Mothers

Why Wildfire Smoke is Extra Risky During Pregnancy

The sky turns an eerie orange, and the smell of smoke seeps through your windows. You're growing a baby, and suddenly every breath feels like a decision you're making for two. If you're pregnant during wildfire season, you're right to be concerned—your body is working overtime already, and wildfire smoke adds stress that neither you nor your developing baby needs.

Here's what makes pregnancy different: your lungs are already working harder than usual, processing more air to supply oxygen to your baby. When that air contains harmful particles from wildfire smoke, you're both exposed to pollutants that can cross the placental barrier. Research shows that pregnant women exposed to wildfire smoke may be at increased risk for pregnancy complications, including preterm birth and low birth weight [1]. These aren't just statistics—they represent real impacts on your pregnancy journey.

The smoke from wildfires isn't just annoying or smelly. It's loaded with fine particulate matter called PM2.5—particles so tiny they can penetrate deep into your lungs and enter your bloodstream. During pregnancy, your immune system naturally shifts to protect your baby, which can make you more vulnerable to the inflammatory effects of air pollution. Exposure to particle pollution from wildfire smoke during pregnancy has been associated with decreased birth weight and increased risk of preterm delivery [2].