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 ...
- Continuous Positive Airway Pressure (CPAP) Machine Cleaning: Ozone, UV Light Products Are Not FDA Approved
(Food and Drug Administration) ... Not FDA Approved Consumer Updates CPAP Machine Cleaning: Ozone, UV Light Products Are Not FDA Approved Most ... that claim to clean CPAPs. One type uses ozone gas, which can be dangerous and toxic above ... - 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 Quality (Centers for Disease Control and Prevention)Air Pollution/Start Here ... Air Pollution ... Centers for Disease Control and Prevention ... Do you think about air quality? If not, today’s the day to start. What ...
- Greenhouse Gases (Department of Energy)... hexafluoride, SF6, nitrogen trifluoride, NF3, water vapor, and ozone
- Air (Department of Health and Human Services, Office on Women's Health)Air Pollution/Teenagers ... Air Pollution ... Department of Health and Human Services, Office on Women's Health
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