With funding from the EPA, Dr. Stuart Batterman at the University of Michigan examined the high incidents of asthma as part of the Detroit Asthma Morbidity, Air-Quality, and Traffic (DAMAT) Study.

This study will develop and evaluate a direct health indicator of pediatric asthma morbidity resulting from exposure to ambient air pollutants using an epidemiological approach that merges existing datasets and incorporates population susceptibility, exposure patterns, and other local conditions.

The green dots are schools, which the study found were often located near expressways.