Sensitive groups, in the context of AQI (Air Quality Index), are people who may be particularly vulnerable to the effects of air pollution. These include individuals with pre-existing respiratory or cardiovascular conditions, such as asthma or heart disease, as well as older adults, children, and pregnant women. These groups are more likely to experience adverse health effects from exposure to elevated levels of air pollution, even at lower AQI levels that may not affect healthy individuals. Therefore, it is important for sensitive groups to take extra precautions to protect themselves when air quality is poor.
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