Heileen Hsu-Kim Heileen Hsu-Kim, Ph.D., is an Associate Professor in the department of Civil & Environmental Engineering at Duke University. She has a B.S. degree in Environmental Engineering Science from Massachusetts Institute of Technology, an M.S. and Ph.D. in Environmental Engineering from the University of California — Berkeley and completed a Postdoc in Marine Science at the University of Delaware. She is currently the Principal Investigator for the Biogeochemical Framework to Evaluate Mercury Methylation Potential During in-situ Remediation of Contaminated Sediments NIEHS R01 grant. She is an expert in aquatic geochemistry and nanogeoscience. Her research primarily focuses on trace elements and the role of geochemical speciation for bioavailability in the environment. For more information please refer to Dr. Hsu-Kim's research group page.