Heather Stapleton, Duke University (IMAGE) Duke University Caption Environmental Chemist Heather led a three-year study of in-home exposures to semi-volatile organic compounds (SVOCs) among 203 children from 190 families. Credit Duke Photo Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.