How to understand the Air Quality Index
that typically ranges from zero to 500 to denote air quality. If your area has an AQI of 50 or below, you're in a green zone. You should have good air quality and little or no risk from pollution.
When the index is between 101 and 150, that's when the air quality may start to impact"members of sensitive groups." These include people with heart or lung disease, older adults, children, pregnant people and those who spend a great deal of time outdoors. However, the general public is less likely to be affected in orange zones, the EPA says.The AQI will reach a code red when the index value surpasses 151.
At code orange, the EPA recommends that everyone keeps outdoor activities light and short and for sensitive groups to go inside if they're experiencing symptoms. In red zones, everyone is encouraged to stay indoors if they have symptoms, while sensitive groups might consider moving all activities indoors.
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