Ozone can cause shortness of breath, chest pain, coughing, nausea and respiratory congestion in some people.
Ozone can also worsen bronchitis, heart disease, emphysema and asthma.
People most at risk are children, those with respiratory diseases, adults who are active outdoors, and anyone that is sensitive to ozone. Active children are most at risk from ozone exposure because they often spend a large part of the day outdoors engaged in vigorous activities. Childhood asthma is a very common chronic disease that can be aggravated by ozone exposure. People with respiratory diseases. People with chronic obstructive pulmonary conditions, like asthma, chronic bronchitis, and emphysema are also at risk.