空气质量

51-100* 101-150 151-200

Moderate Unhealthy for Sensitive Groups Unhealthy

None

People with asthma should consider reducing exertion

outdoors. Children, asthmatics, and people with heart or lung

disease should reduce exertion outdoors. Children, asthmatics, and people with heart or lung disease should avoid outdoor exertion. Everyone else

should reduce exertion outdoors. Children, asthmatics, and people with heart or lung disease should remain indoors. Everyone else should

avoid exertion outdoors.

201-300 Very Unhealthy

301-500 Hazardous

z An AQI of 100 for sulfur dioxide corresponds to an SO2 level of 0.14 parts per million (averaged over 24

hours).

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