Ozone

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.

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Results 1 - 10 of 77 for Ozone
  1. 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 ...
  2. ... 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 ...
  3. 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 ...
  4. Ozone Layer Protection (Environmental Protection Agency)  
    Ozone/Learn More ... Ozone ... Environmental Protection Agency ... Science information about stratospheric ozone layer protecting humans and earth from ultraviolet (UV) ...
  5. Ozone From the National Institutes of Health (National Institute of Environmental Health Sciences)  
    Ozone is a highly reactive form of oxygen. In the upper atmosphere, ozone forms a protective layer that shields us from the sun’s ultraviolet rays. At ground level, ozone is a harmful air pollutant and a primary ...
  6. 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 ...
  7. 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
  8. ClinicalTrials.gov: Ozone Exposure From the National Institutes of Health (National Institutes of Health)  
    Ozone/Clinical Trials ... Ozone
  9. 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 ...
  10. Greenhouse Gases (Department of Energy)  
    ... hexafluoride, SF6, nitrogen trifluoride, NF3, water vapor, and ozone
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