Wildfire smoke exposure during pregnancy is associated with increased risks of adverse birth outcomes, including preterm birth and low birth weight, as well as potential negative impacts on the unborn child's lung development and early childhood respiratory illnesses. Smoke contains fine particulate matter (PM2.5) that can enter a pregnant person's bloodstream, cross the placenta, and cause inflammation that harms both the parent and the developing fetus. Pregnancy increases breathing rate and volume to supply oxygen to the fetus, meaning that more pollutants are inhaled.
Learn more about wildfire smoke exposure during pregnancy through our literature and webinar on the right-hand menu.