Air Quality Index | Air Pollution | Merck Manual Consumer Version
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Air Quality Index | Air Pollution | Merck Manual Consumer Version
The Air Quality Index (AQI) is used to communicate how polluted the air is at a given point in time. People, especially those with heart or lung disorders, can use the Air Quality Index to guide their choice of outdoor activities on days when pollution levels are high. Members of sensitive groups include people with lung or heart disease ...
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