TOXICOLOGICAL PROFILE FOR POLYCHLORINATED BIPHENYLS (PCBs) U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service Agency for Toxic Substances and Disease Registry November 2000 PCBs ii DISCLAIMER The use of company or product name(s) is for identification only and does not imply endorsement by the Agency for Toxic Substances and Disease Registry. PCBs iii UPDATE STATEMENT A toxicological Profile for PCBs, Draft for Public Comment, was released in December 1998. This edition supercedes any previously released draft or final profile. Toxicological profiles are revised and republished as necessary, but no less than once every three years. For information regarding the update status of previously released profiles, contact ATSDR at: Agency for Toxic Substances and Disease Registry Division of Toxicology/Toxicology Information Branch 1600 Clifton Road NE, E-29 Atlanta, Georgia 30333 [...]... 310 3-9 Apparent Half-lives (Years) of PCB Congeners from Multiple Studies 326 3-1 0 Apparent Half-lives (Years) of PCB Mixtures from Multiple Studies 328 3-1 1 Volumes and Flow Rates in Several Tissues of Four Species 341 3-1 2 Metabolism Rate Constant (k) from the Physiologic Model 342 3-1 3 Tissue-to-blood... 550 6-1 9 Mean PCB Concentrations in Animals 552 PCBs xxiii 6-2 0 Mean PCB Concentrations in Blubber of Sea Mammals 554 6-2 1 Serum Polychlorinated Biphenyl (PCB) Levels in Non-occupationally Exposed U.S Populations That Do Not Consume Fish from PCB- Contaminated Waters (1 973–199 6) 558 6-2 2 Estimated Daily... Polychlorinated Biphenyls (R) and Metabolites (R ) 343 3-1 4 Kidney Clearance (kk) and Biliary Clearance (kg) for Selected Polychlorinated Biphenyls in Several Species 344 3-1 5 Ongoing Studies on the Health Effects of PCBs 436 3-1 6 Ongoing Studies... 564 6-2 6 Serum Polychlorinated Biphenyl (PCB) Levels in Populations with Occupational Exposure 567 6-2 7 Mean Concentration of PCBs in Human Breast Milk 571 6-2 8 Serum Polychlorinated Biphenyl (PCB) Levels in Non-occupationally Exposed U.S Populations that Consume Fish from PCB- contaminated Waters (1 973–199 5). .. Polychlorinated Biphenyls from the Great Lakes Waters 492 6-3 Bioconcentration Factors (BCFs) and Bioaccumulation Factors (BAFs) for Select Congeners and Total Polychlorinated Biphenyls in Various Aquatic Organisms 494 6-4 Bioconcentration Factors (BCFs) for Various Aroclors in Fresh Water Species 495 6-5 Bioconcentration Factors (BCFs) for Various Aroclors... (1 973–199 5) 578 6-2 9 Ongoing Studies on Environmental Fate and Treatment of Polychlorinated Biphenyls 593 7-1 EPA Method 1668-Estimated Method Detection Limits (EMDL) and Estimated Minimal Levels (EML) of Selected PCB Congeners 598 7-2 Analytical Methods for Determining Polychlorinated Biphenyls in Biological Samples 599 7-3 Analytical... Significant Exposure to PCBs - Inhalation 39 3-2 Levels of Significant Exposure to PCBs - Oral 43 3-3 Levels of Significant Exposure to PCBs - Dermal 88 3-4 Genotoxicity of Polychlorinated Biphenyls In Vivo 248 3-5 Genotoxicity of Polychlorinated Biphenyls In Vitro... B-1 C ACRONYMS, ABBREVIATIONS, AND SYMBOLS C-1 D INDEX D-1 E SUMMARY REPORT FOR THE EXPERT PANEL REVIEW of April 13, 2000 E-1 PCBs xix LIST OF FIGURES 3-1 Levels of Significant Exposure to PCB Mixtures - Inhalation 42 3-2 Levels of Significant Exposure to PCB Mixtures -. .. Daily Dietary Intake ( g/kg/day) of Polychlorinated Biphenyls for Adults, Toddlers, and Infants 561 6-2 3 Mean Daily Intakes of PCBs Per Unit of Body Weight ( g/kg body weight/day) 562 6-2 4 Children Total Diet Studies — PCB Intakes from 265 Foods for the Years 1991–1997 563 6-2 5 Adult Total Diet Studies — PCB Intakes from... Species 496 6-6 Field Measured Bioaccumulation Factors for Isomeric Groups of Polychlorinated Biphenyls 498 6-7 Observed Soil and Sediment Sorption Coefficients (Koc) for Polychlorinated Biphenyls Congeners 500 6-8 Plant Uptake (Bioaccumulation) of PCBs 503 6-9 Positions of Chlorines