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What causes ozone?

Ozone is created when the sun’s heat and light act upon gases and pollution in the air. It’s bad to breathe -- especially for people with asthma, and especially during May to September, the “ozone season” when ozone levels are highest.

Continue Learning about Air Quality

The Particulate Matter (PM) Air Pollution Quiz
The Particulate Matter (PM) Air Pollution Quiz
By 2010, The Clean Air Act of 1970 caused the USA to reduce total emissions of six principal air pollutants by more than 41 percent, (while GDP increa...
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Many office and factory workers experience headaches, unusual fatigue, itching or burning eyes, skin...
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How does air pollution affect my health?
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Choose to live where pollution rates are low. When you're selecting a place to live or work, che...
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7 Ways to Improve Your Air Quality
7 Ways to Improve Your Air Quality

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.