Ozone+and+health - Air Quality Index Good(0-50...

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Air Quality Index Protect Your Health Good (0-50) No health impacts are expected when air quality is in this range. Moderate (51-100) Unusually sensitive people should consider limiting prolonged outdoor exertion. Unhealthy for Sensitive Groups (101-150) The following groups should limit prolonged outdoor exertion: People with lung disease, such as asthma Children and older adults People who are active outdoors Unhealthy (151-200) The following groups should avoid prolonged outdoor exertion: People with lung disease, such as asthma Children and older adults People who are active outdoors Everyone else should limit prolonged outdoor exertion. Very Unhealthy (201-300) The following groups should avoid all outdoor exertion: People with lung disease, such as asthma Children and older adults People who are active outdoors Everyone else should limit outdoor exertion. What Is Ozone? Are You at Risk? How Can You Protect Yourself? How can you know when ozone levels are unhealthy? Checking local air quality is as easy as checking the weather forecast. You can find daily ozone forecasts and real-time ozone conditions for over 300 cities across the country at the AIRNow Web site: airnow.gov. You may also find air quality reported in your newspaper’s weather section or on radio or television, particularly when conditions are unhealthy. All of these sources use the Air Quality Index (or AQI) to report levels of ozone and other common pollutants in the air. The AQI, shown above, is a simple color-coded scale. For example, yellow means “moderate” conditions and red means “unhealthy” conditions. This color scheme can help you know, at a glance, if air pollutants are reaching unhealthy levels in your area. The illustration to the right shows how you might see the AQI used in a newspaper. Ozone and Your Health United States Environmental Protection Agency Air and Radiation Washington, DC 20460 February 2009 EPA-456/F-09-001 Visit airnow.gov Check daily ozone levels Access air quality resources View air quality maps that show current and forecast ozone levels. Find out if ozone concentrations are unhealthy in your area.
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