Breathless: Pittsburgh's asthma epidemic and the fight to stop it
Asthma plagues children in Allegheny County—and air pollution is making it worse. How bad is it? With data lacking, a pediatrician and her colleagues set out to put a number on the problem. Testing more than 1,200 elementary school students, they found that 22 percent of kids in the region have asthma. At the state level, just 10 percent of kids have asthma.