Blair Paulik, Oregon State University (IMAGE) Oregon State University Caption Blair Paulik, graduate student in environmental chemistry at Oregon State University, checks on an air-pollution sampler in Carroll County, Ohio. Credit Photo by Kevin Hobbie, courtesy of Oregon State University 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.