Shih-Wei Tsai is Professor of Institute of Environmental and Occupational Health Sciences at National Taiwan University. He received a B.S. and M.S. degrees in Public Health from National Taiwan University, and Ph.D. in Environmental Health Sciences from the University of California, Los Angeles. He has been active in the area of industrial hygiene as well as in air sampling and analysis. He is also certified in the comprehensive practice of industrial hygiene (CIH) by the American Board of Industrial Hygiene (ABIH). His current research involves the applications of solid-phase microextraction (SPME) to the fields of environmental and occupational health.