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Air Quality Index & Running

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The air quality is a consideration for runners who have asthma. Air quality is more of an issue during summer months and in places where there is a greater degree of smog. Ground-level ozone is increased in polluted areas when the day is clear, the temperature is above 80 degrees, and the air is stagnant. If the air quality index is 100 or higher, consider running early in the morning (before 7:00 am) or later in the evening (after 8:00 pm), when pollution tends to be lower. Avoid running near heavy traffic. Running indoors on a treadmill or track may be a good idea on days when ozone levels are high.

For more information about the air quality index, see this link from the Environmental Protection Agency:

There is a brief discussion of running and air quality index in the July 2006 issue of Runner's World Magazine on page 44.

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