1. Division of Environmental Science and Ecological Engineering Korea University Seoul Republic of Korea
2. Department of Environmental Engineering Pusan National University Busan Republic of Korea
3. Department of Consumer Science Chungbuk National University Chungbuk Republic of Korea
4. Department of Earth and Environmental Sciences University of Texas at Arlington Arlington Texas USA
5. Department of Environmental Science Baylor University Waco Texas USA
6. Department of Environmental and Occupational Health University of California Irvine CA USA