Ozone Affecting Health (observed effects) |
Concentration (ppm) |
Threshold of odor, normal person |
0.005-0.02 |
Maximum 8 hr. average exposure limit |
0.1 |
Minor eye, nose, and throat irritation, headache, shortness of breath |
>0.1 |
Breathing disorders, reduced oxygen consumption, lung irritation, severe fatigue, chest pain, dry cough |
0.5-1.0 |
Headache, respiratory irritation, and possible coma. Possibility of severe pneumonia at higher levels of exposure |
1-10 |
Immediately dangerous to life and health |
10 |
Lethal to small animals within two hours |
15-20 |
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