GLOSSARY OF TERMS AND ACRONYMS A B C D E F G H I J K L M N O P Q R S T U V W X Y Z I Integrated Exposure Uptake Biokinetic Model for Lead in Children (IEUBK) The Integrated Exposure Uptake Biokinetic Model for Lead in Children (IEUBK) attempts to predict blood-lead concentrations (PbBs) for children exposed to lead in their environment. Measured PbBs is not only an indication of exposure, but is a widely used index to anticipate future health problems. Infoterra Infoterra is an international environmental referral and research network made up of 177 countries coordinated by the United Nations Environment Programme (UNEP). The services offered by UNEP-Infoterra/USA include responding to requests from the international community for environmental information through document delivery, database searching, bibliographic products, purchasing information, and referrals to experts. In addition, UNEP-Infoterra/USA assists U.S. residents in identifying sources of international environmental information.