Gwynne Mhuireach, University of Oregon (image) University of Oregon Share Print E-Mail Caption Gwynne Mhuireach, a doctoral student in landscape architecture at the University of Oregon, check out a data-collection site at a park in Eugene, Oregon. Part of her project showed that using inexpensive petri dishes to collect air samples works as well as more expensive methods. Credit University of Oregon Usage Restrictions None Share Print E-Mail 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.