URL of this page: http://freefacebookcredits2012.info/ozone.html

Ozone

Summary

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.

Environmental Protection Agency

Start Here

  • From the National Institutes of Health (National Institute of Environmental Health Sciences)

Learn More

  • (Environmental Protection Agency) Also in
  • From the National Institutes of Health (National Institute of Environmental Health Sciences)
  • (Mayo Foundation for Medical Education and Research)
  • (Environmental Protection Agency, Indoor Environments Division)
  • (Environmental Protection Agency)
  • (Nemours Foundation) Also in
  • (Environmental Protection Agency, Office of Air Quality Planning and Standards)
  • (Environmental Protection Agency)
  • From the National Institutes of Health (National Library of Medicine) Also in
  • (Environmental Protection Agency)

Related Issues

  • (Environmental Protection Agency)
  • (National Oceanic and Atmospheric Administration)

Clinical Trials

  • From the National Institutes of Health (National Institutes of Health)

Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)

Reference Desk

  • (Environmental Protection Agency)

Children

  • From the National Institutes of Health (National Library of Medicine)
  • (Nemours Foundation) Also in
  • (Environmental Protection Agency)
natürliches potenzmittel