
Ozone is a gas. It can be good or bad, depending on where it is. "Good" ozone occurs naturally about 10 to 30 miles above the Earth's surface. It shields us from the sun's ultraviolet rays. Part of the good ozone layer is gone. Man-made chemicals have destroyed it. Without enough good ozone, people may get too much ultraviolet radiation. This may increase the risk of skin cancer, cataracts, and immune system problems.
"Bad" ozone is at ground level. It forms when pollutants from cars, factories, and other sources react chemically with sunlight. It is the main ingredient in smog. It is usually worst in the summer. Breathing bad ozone can be harmful. It can cause coughing, throat irritation, worsening of asthma, bronchitis, and emphysema. It can lead to permanent lung damage, if you are regularly exposed to it.
- Ozone (National Library of Medicine)Ozone is a gas. It can be good or bad, depending on where it is. "Good" ozone occurs naturally about 10 to 30 miles above ... the sun's ultraviolet rays. Part of the good ozone layer is gone. Man-made chemicals have destroyed ...
- Ozone Generators That Are Sold as Air Cleaners (Environmental Protection Agency)Indoor Air Pollution/Prevention and Risk Factors ... Indoor Air Pollution ... Ozone/Learn More ... Ozone ... Environmental Protection Agency ... Ozone generators that are sold ...
- Ground-Level Ozone Pollution (Environmental Protection Agency)Known as tropospheric or "ground-level" ozone, this gas is harmful to human heath and the environment. Since it forms from emissions of volatile organic compounds (VOCs) and nitrogen ...
- Ozone Layer Protection (Environmental Protection Agency)Science information about Earth's stratospheric ozone layer protecting humans and earth from the sun's ultraviolet (UV) rays ... ozone, SNAP, ozone-depleting substances, Chemicals > Hydrochlorofluorocarbons, HFC
- Ozone Air Purifiers: Can They Improve Asthma Symptoms? (Mayo Foundation for Medical Education and Research)Ozone/Learn More ... Ozone ... Mayo Foundation for Medical Education and Research
- Ozone/Clinical Trials ... Ozone
- Air Pollutants (Centers for Disease Control and Prevention)... on criteria air pollutants and health effects of ozone and PM
- About Air Quality (Centers for Disease Control and Prevention)Air Pollution/Start Here ... Air Pollution ... Centers for Disease Control and Prevention ... Information on the Air Quality Index and other resources related to air ...
- ... that claim to clean CPAPs. One type uses ozone gas and the second type uses ultraviolet (UV) light. Both UV light and ozone can break down CPAP accessories like hoses and ...
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