In Vitro Bioaccessibility of Metals in Soils from a Superfund Site in Puerto Rico K. Kientz, 1 B. D. Jime ´ nez, 2 L. Pe ´ rez, 2 C. J. Rodrı ´guez-Sierra 1 1 Department of Environmental Health, School of Public Health, Medical Sciences Campus, University of Puerto Rico, Post Office Box 365067, San Juan, Puerto Rico 00936-5067 2 Department of Biochemistry, School of Medicine, Center for Environmental and Toxicological Research, Medical Sciences Campus, University of Puerto Rico, Post Office Box 365067, San Juan, Puerto Rico 00936-5067 Received: 28 June 2002/Accepted: 30 January 2003 Correspondence to: C. J. Rodrı ´guez-Sierra Bull. Environ. Contam. Toxicol. (2003) 70:927–934 © 2003 Springer-Verlag New York Inc. DOI: 10.1007/s00128-003-0071-8 Bulletin of Environmental Contamination and Toxicology 927