The dual impact of extreme heat and poor air quality poses serious health risks for Philadelphia residents. Vulnerable groups, including individuals with asthma, chronic obstructive pulmonary disease (COPD), and cardiovascular conditions, are at heightened risk. Prolonged exposure to these conditions can lead to heat exhaustion, heatstroke, and aggravated respiratory problems. Outdoor activities may become unsafe, particularly during peak heat and pollution hours, increasing the likelihood of hospitalizations and emergency room visits.