Impair the body's immune system defenses, making people more susceptible to respiratory illnesses, including bronchitis and pneumonia. The average adult breathes 13,000 liters of air per day.
Children breathe even more air per pound of body weight than adults.
Because children's respiratory systems are still developing, they are more susceptible than adults to environmental threats. Children play and exercise outside during the summer ozone season at playgrounds, summer camps, neighborhood parks, and backyards. Asthmatics and Asthmatic Children Asthma is a growing threat to children and adults. Fourteen Americans die every day from asthma, a rate three times greater than just 20 years ago. African-Americans die at a rate six times that of Caucasians.