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U.S. Air Quality Summary (text)
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How is the NowCast algorithm used to report current air quality?
How do we know if it's OK to let the kids play/do sports outside?
How does AirNow calculate yesterday's AQI?
How is the NowCast algorithm used to report current air quality?
Are healthy children part of the "Unhealthy for Sensitive Groups" category?
Is it unhealthy to live near a major road?
Pollen counts can be very high in the spring. How does this affect the AQI for particle pollution?
What are the standards for the six common (criteria) pollutants?
What is particle pollution?
What is the "Highest 5"?
What is the AQI?
Where can I find air quality trends?
Which cities have the best (or worst) air quality?
Where can I find historical or archived data?
Why is a particle pollution map not available?