Table 2.

WHO TEFs (1998 and 2005) for humans and UMDES median LODs for blood, dust, and soil samples.

	TEF		LOD
Congener	1998	2005	Serum, lipid adjusted (pg/g-lipid)a	Soilb (pg/g)	Dust (pg/g)
PCDDs
2,3,7,8-TCDD	1	1	0.5	0.2	0.5
1,2,3,7,8-PentaCDD	1	1	2.1	0.2	1.2
1,2,3,4,7,8-HexaCDD	0.1	0.1	2.6	0.4	2.2
1,2,3,6,7,8-HexaCDD	0.1	0.1	3.4	0.3	4.8
1,2,3,7,8,9-HexaCDD	0.1	0.1	2.6	0.5	2.6
1,2,3,4,6,7,8-HeptaCDD	0.01	0.01	2.1	0.3c	2.5
OctaCDD	0.0001	0.0003	2.4c	0.4c	2.2c
PCDFs
2,3,7,8-TetraCDF	0.1	0.1	0.4	0.3	0.8
1,2,3,7,8-PentaCDF	0.05	0.03	0.4	0.2	1.0
2,3,4,7,8-PentaCDF	0.5	0.3	1.5	0.2	1.2
1,2,3,4,7,8-HexaCDF	0.1	0.1	2.2	0.2	1.0
1,2,3,6,7,8-HexaCDF	0.1	0.1	1.8	0.2	0.9
1,2,3,7,8,9-HexaCDF	0.1	0.1	1.1	0.1	0.7
2,3,4,6,7,8-HexaCDF	0.1	0.1	1.0	0.2	1.4
1,2,3,4,6,7,8-HeptaCDF	0.01	0.01	1.9	0.1c	5.8
1,2,3,4,7,8,9-HeptaCDF	0.01	0.01	1.0	0.2	1.5
OctaCDF	0.0001	0.0003	2.5	0.2c	20.8
PCBs
3,4,4′,5-TetraCB (PCB-81)	0.0001	0.0003	1.4	0.2	2.8
3,3′,4,4′-TetraCB (PCB-77)	0.0001	0.0001	1.0	0.1c	0.4c
3,3′,4,4′,5-PentaCB (PCB-126)	0.1	0.1	4.7	0.4	8.1
3,3′,4,4′,5,5′-HexaCB (PCB-169)	0.01	0.03	3.7	0.4	1.2
2,3,3′,4,4′-PentaCB (PCB-105)	0.0001	0.00003	0d	0.8c	2.1
2,3,4,4′,5-PentaCB (PCB-114)	0.0005	0.00003	0d	0.6	38.6
2,3′,4,4′,5-PentaCB (PCB-118)	0.0001	0.00003	0d	0.7c	5.2c
2′,3,4,4′,5-PentaCB (PCB-123)	0.0001	0.00003	34.4	0.6	27.3
2,3,3′,4,4′,5-HexaCB (PCB-156)	0.0005	0.00003	0d	0.2	5.3
2,3,3′,4,4′,5′-HexaCB (PCB-157)	0.0005	0.00003	0d	0.5	5.2
2,3′,4,4′,5,5′-HexaCB (PCB-167)	0.00001	0.00003	0d	3.0	31.6
2,3,3′,4,4′,5,5′-HeptaCB (PCB-189)	0.0001	0.00003	0d	0.3	1.8

^aData are pg/g-lipid, equivalent to or parts dioxin per trillion parts lipid.

^bSoil samples from the house perimeter top 1 in. (0–2.5 cm).

^cMedian LOD among all samples (none were < LOD).

^dLOD < 0.0005 pg/g.