Another air quality alert is in effect for Philly and its neighboring Pennsylvania counties Sunday, and it looks like more heat, and that summer of 2025 favorite — smoke — are poised to return during the week.

Children, older adults and those with respiratory conditions are urged to avoid avoid strenuous or long activities outdoors on Sunday due to poor air quality.

Under a Code Orange alert, it's recommended that children, older adults and those with respiratory illnesses limit time spent outdoors.