Researchers found that students with asthma in the Mon Valley were more likely to miss school on days with higher air pollution.By Kiley BenseIn 2020, Dr. Deborah Gentile helped lead a study that showed children living near major sources of industrial pollution in Pennsylvania’s Allegheny County were diagnosed with asthma at triple the national rate—and quadruple for African American children. Among the students with asthma in the study, 59 percent suffered from uncontrolled symptoms.