Air quality in Philly reaches unhealthy levels thanks to wildfires out west

Local researchers say it’s unclear what the health impact is, but public transit is still preferable to driving.

Philly’s asthma rate among kids is almost three times the national average. Researchers say air purifiers could help curb the impact of poor air quality.

Three studies show smoke from Canadian wildfires led to a spike in people with asthma visiting emergency rooms in the United States.