AQI Guide & Interpreter
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Moderate
Health ImplicationsAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people.
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Full Scale Guide
0-50
Good
Safe for everyone.
51-100
Moderate
Sensitive groups should limit exertion.
101-150
Unhealthy (Sensitive)
General public not likely to be affected.
151-200
Unhealthy
Everyone begins to see health effects.
201-300
Very Unhealthy
Health alert: serious risk for all.
301+
Hazardous
Emergency conditions for all.
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