While summer’s heat is a ways off (we hope), today is the first ozone action day of the season.
Ground-level ozone forms when sunlight meets combustion sources (in North Texas, that comes from vehicle engines, natural gas compressors and coal and cement plants) mixed with volatile organic compounds (gasses that come from trees and plants, as well as oil and gas facilities).
Ozone’s three oxygen atoms make it a superoxidant. Ozone burns the lining of our lungs similar to the way sunlight burns skin, except we cannot see our airways get raw and swell from the burn.
Healthy people might not feel the burn until...