The urban haze that we call smog contains several pollutants that react to form ozone. Most of these pollutants come from automobiles. Large factories also account for a portion of the emissions. Businesses such as printing plants, service stations and auto body shops also contribute, as do people using lawnmowers, paints and cleaning solvents. Ozone Health Facts Ozone makes it difficult for the lungs to absorb oxygen, limiting the body's ability to breathe.
Ozone irritates the mucous lining of the throat and lungs resulting in coughing and even choking.
People with asthma, bronchitis and other respiratory problems are particularly sensitive to ozone. There is an association between ozone levels in the outdoor air and increased hospital admissions for respiratory causes, such as asthma. On days when IDEM declares an Ozone Action Day, there are steps that we each can take to reduce emissions and contribute to cleaner air. Asthmatics and other individuals with respiratory problems should not exercise and should stay indoors in an air conditioned or well ventilated area. If any individuals experience symptoms such as tightness in the chest, coughing, or wheezing, they should seek medical attention immediately.