US Air Quality Index |
Behavior Guidelines and Health Precautions Air Pollution |
Military Conducting Non-Critical Ops & General Public
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Guidance for School Outdoor Activity
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Sensitive Individuals*
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Good (0 - 50) |
Normal daily activity |
Great day to be active outside! |
Moderate (50 - 100) |
Normal daily activity |
Good day to be active outside! Students who are usually sensitive to air pollution could have symptoms. *Ensure that sensitive individuals are medically managing their conditions. |
Consider reducing prolonged or heavy exertion. Symptoms like coughing or
shortness of breath are a sign to take it easier. |
Unhealthy for Sensitive Groups (101 - 150) |
Normal daily activity |
It's OK to be active outside especially for short activities such as recess and physical education(PE). For longer activities such as athletic practice, take more breaks and do less intense activities. Watch for symptoms and take action as needed.* |
Reduce prolonged or heavy exertion. It's OK to be active outside, but take breaks and do less intense activities. Watch for coughing or shortness of breath. |
Unhealthy (151 - 200) |
Reduce prolonged or heavy exertion. Take more breaks during all outdoor
activities. |
For all outdoor activities, take more breaks and do less intense activities. Consider moving longer or more intense activities indoors or rescheduling them to another day or time. Watch for symptoms and take action as needed.**
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Avoid prolonged or heavy exertion. Consider moving activities indoors or rescheduling. |
Very Unhealthy (201 - 300) |
Avoid prolonged or heavy exertion. Consider moving activities indoors or
rescheduling to a time when air quality is better. |
Move all activities indoors or reschedule them to another day.** |
Avoid all physical activity outdoors. Move activities indoors or reschedule to a time when air quality is better. |
Hazardous (301 - 500) |
Avoid all physical activity outdoors. |
No outdoor activity |
+ Remain indoors and keep activity levels low. Follow
tips for keeping particle levels low indoors. |