TABLE 1.

Summary of Individual and Cumulative PCB 126 Dose, Expressed on a Molar, Weight or TCDD TEQ Basis, for Different Treatment Groups^a

Group	Number of Rats	PCB 126 Dose/Injection		TCDD TEQb Dose/Injection		Cumulative PCB126 Dose		Cumulative TCDD TEQb Dose
		µmol/kg b.w.	µg/kg b.w.	nmol/kg b.w.	µg/kg b.w.	µmol/kg b.w.	µg/kg b.w.	nmol/kg b.w.	µg/kg b.w.
Vehicle (corn oil)	10	0	0	0	0	0	0	0	0
Low dose	8	0.01	3.3	1	0.33	0.06	19.8	6	1.98
Medium dose	8	0.05	16.3	5	1.63	0.3	97.8	30	9.78
High dose	8	0.2	65	20	6.5	1.2	390	120	39

^aAnimals were acclimatized to the animal facility for 1 week, randomized into the 4 treatment groups, and treated every 2 weeks with i.p. injections of corn oil (vehicle; 5 mL/kg b.w.) or PCB 126 in corn oil (5 mL/kg b.w.) for 3 months.

^bThe PCB 126 dose, expressed as TCDD (2,3,7,8-tetrachlorodibenzo-p-dioxin) toxic equivalent quotient, was calculated using the 2005 WHO TEF of PCB 126 of 0.1 (Van den Berg et al., 2006).