Figure: 30 TAC §350.76(d)(2)(B)
Toxicity Equivalency Factors (TEFs) for Dioxin-Like Compounds
|
Congener/Class |
TEF Value |
|
2,3,7,8-Substituted Dibenzodioxins |
|
|
2,3,7,8-Tetrachlorodibenzodioxin |
1 |
|
2,3,7,8-Pentachlorodibenzodioxins |
1 |
|
2,3,7,8-Hexachlorodibenzodioxins |
0.1 |
|
2,3,7,8-Heptachlorodibenzodioxins |
0.01 |
|
Octachlorodibenzodioxins |
0.0001 |
|
2,3,7,8-Substituted Dibenzofurans |
|
|
2,3,7,8-Tetrachlorodibenzofuran |
0.1 |
|
1,2,3,7,8-Pentachlorodibenzofuran |
0.05 |
|
2,3,4,7,8-Pentachlorodibenzofuran |
0.5 |
|
2,3,7,8-Hexachlorodibenzofurans |
0.1 |
|
2,3,7,8-Heptachlorodibenzofurans |
0.01 |
|
Octachlorodibenzofurans |
0.0001 |
|
Dioxin-Like PCBs |
|
|
3,4,4’,5-TCB (81) |
0.0001 |
|
3,3’,4,4’-TCB (77) |
0.0001 |
|
3,3’,4,4’,5-PeCB (126) |
0.1 |
|
3,3’,4,4’,5,5’-HxCB (169) |
0.01 |
|
2,3,3’,4,4’-PeCB (105) |
0.0001 |
|
2,3,4,4’,5-PeCB (114) |
0.0005 |
|
2,3’,4,4’,5-PeCB (118) |
0.0001 |
|
2’,3,4,4’,5-PeCB (123) |
0.0001 |
|
2,3,3’,4,4’,5-HxCB (156) |
0.0005 |
|
2,3,3’,4,4’,5’-HxCB (157) |
0.0005 |
|
2,3’,4,4’,5,5’-HxCB (167) |
0.00001 |
|
2,3,3’,4,4’,5,5’-HpCB (189) |
0.0001 |