The poor air quality poses significant health risks, particularly for sensitive groups such as children, the elderly, and individuals with respiratory conditions like asthma. The Chicago Park District has closed all beaches and outdoor pools, and events such as a Chicago Fire home game have been postponed. Residents are advised to limit outdoor activities, especially strenuous ones, to reduce exposure to the hazardous air. Those who must be outside are encouraged to wear N95 or KN95 masks to mitigate health risks.