Pittsburgh’s air pollution estimated to claim 3,000+ lives per year − and EPA rollbacks aren’t helping

A new study published in Annals of Global Health estimates air pollution in the Pittsburgh area claims over 3,000 lives annually, identifying southwestern Pennsylvania as a major pollution hot spot. The region's steel mills, coke ovens that burn coal for steel production, and steep valleys that trap pollutants combine with inadequate local enforcement of the Clean Air Act to keep Pittsburgh among the nation's most polluted metropolitan areas. Air pollution in the region causes chronic heart disease, stroke, lung cancer, and diabetes in adults, while children face risks including premature birth, asthma, IQ loss, and autism spectrum disorder. The findings echo lessons from the 1948 Donora smog disaster that killed 20 residents and spurred creation of the Clean Air Act, yet pollution persists nationwide at an estimated 200,000 deaths per year.