Study Finds Association Between Reduction of Air Pollution and Lower Asthma Burden in Children

Improved air quality in the Los Angeles region is linked to roughly 20 percent fewer new asthma cases in children, according to a USC study that tracked Southern California children over a 20-year period. The study appears in the May 2019 edition of the Journal of the American Medical Association and sought to investigate the association between reductions in regional air pollutant concentration and incidence of childhood asthma. To conduct the study, researchers followed up with multiple cohorts of children from 4th to 12th grade between the years 1993 and 20014. A total of 4140 children with no history of asthma participated in the study.

For more information and to view the article’s abstract, click here.

To read an NPR article on the study, click here.