If we breath in ozone it can trigger a variety of health problems including chest pain, coughing, and throat irritation. It can worsen bronchitis, emphysema, and asthma. Ozone also can reduce lung function and inflame the linings of the lungs also known as the sun burn of the lungs. Repeated exposure may permanently scar lung tissue. Even healthy people can experience difficulties in breathing when exposed to ozone pollution. Because ozone forms in hot weather, anyone who spends time outdoors in the summer may be affected, particularly children, older people, outdoor workers and people exercising.
The ozone does not only have just negative health effects, it cause also damages to materials, especially if it goes along with the presence of UV light or in combination with other air pollutants like sulfur dioxide and nitrogen dioxide. We are not talking only about oxidation of metals, but also of deterioration of Polymers (plastic) and rubber.
Ozone maximum exposure for humans is set to 120 µg/m3 (170 ppb) 8 hours