In the context of the Air Quality Index (AQI), sensitive groups refer to individuals who are more vulnerable to the health effects of air pollution. These groups include:

Children: Because their lungs are still developing, children are more susceptible to the harmful effects of air pollution. Exposure to air pollution can cause asthma, reduced lung function, and other respiratory problems in children.

Elderly people: As people age, their immune system weakens, making them more susceptible to the health effects of air pollution. Elderly people with existing respiratory or cardiovascular diseases are at higher risk of experiencing negative health effects due to air pollution.

People with pre-existing respiratory or cardiovascular conditions: People with conditions such as asthma, chronic obstructive pulmonary disease (COPD), or heart disease are more vulnerable to the health effects of air pollution. Exposure to air pollution can worsen these conditions and lead to hospitalization or even death.

Outdoor workers: People who work outdoors, such as construction workers or landscapers, are at increased risk of exposure to air pollution. Prolonged exposure to air pollution can cause respiratory problems and other health issues for outdoor workers.

Pregnant women: Exposure to air pollution during pregnancy can harm the developing fetus and increase the risk of low birth weight, premature birth, and other adverse birth outcomes.

In summary, sensitive groups are individuals who are more vulnerable to the health effects of air pollution due to their age, pre-existing health conditions, or occupation. It is important to protect these groups from exposure to air pollution by taking measures to improve air quality.
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