Air Quality Index (AQI) Legend and Additional Information
New York State Air Quality Hotline: (800) 535-1345
If you would like to be notified when daily air quality reaches a level of your choice,
you can sign up for Enviroflash at
enviroflash.info.
Air Quality Index
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Green
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Good |
0 - 50 |
Air quality is satisfactory, and air pollution poses little or no risk. |
It's a great day to be outside. |
Yellow
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Moderate |
51 - 100 |
Air quality is acceptable. However, there may be a risk for some people, particularly those who are very sensitive to air pollution. |
Very sensitive individuals may experience health effects and should consider limiting outdoor activities. For most people without health conditions, it's a great day to be outside. |
Orange
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Unhealthy for Sensitive Groups |
101 - 150 |
Members of sensitive groups* may experience health effects. The general public is less likely to be affected. |
Sensitive groups* should make outdoor activities shorter and less intense. Take more breaks. Watch for symptoms such as coughing and shortness of breath and follow your health care provider's action plan. |
Red
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Unhealthy |
151 - 200 |
Some members of the general public may experience negative health effects. Members of sensitive groups* may experience more serious health effects. |
Everyone should reduce long or intense outdoor activities. Take more breaks. Sensitive groups* should move activities indoors** or reschedule outdoor events for another day. If outdoor activity is unavoidable, take frequent breaks and move indoors** if symptoms occur. |
Purple
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Very Unhealthy |
201 - 300 |
The risks of negative health effects is increased for everyone. |
Avoid all physical activity outdoors. Move indoors.** Follow specific Air Quality Health Advisory guidance. |
Maroon
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Hazardous |
301 and higher |
Emergency conditions: everyone is likely to be negatively affected. |
Remain indoors** and sensitive groups* should keep all physical activity levels low indoors. Follow specific Air Quality Health Advisory guidance. |
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*Sensitive groups: these groups include children and teens, the elderly, pregnant people, those with lung or heart conditions, asthmatics, those who exercise or work outdoors, and those in disadvantaged communities. |
**During high-heat air pollution events, seek indoor locations with air conditioning or go to a cooling center. |
Source: EPA |
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