['Air Programs']
['Hazardous Air Pollutants']
12/23/2024
...
As stated in §63.7825(u), you must demonstrate compliance with each dioxin/furan emission limit that applies to you by calculating the sum of the 2,3,7,8-TCDD TEQs using the 2005 World Health Organization (WHO) toxicity equivalence factors (TEF) presented in the following table:
For each dioxin/furan congener . . . | You must calculate its 2,3,7,8-TCDD TEQ using the following TEF . . . |
---|---|
2,3,7,8-tetrachlorodibenzo-p-dioxin | 1 |
1,2,3,7,8-pentachlorodibenzo-p-dioxin | 1 |
1,2,3,4,7,8-hexachlorodibenzo-p-dioxin | 0.1 |
1,2,3,7,8,9-hexachlorodibenzo-p-dioxin | 0.1 |
1,2,3,6,7,8-hexachlorodibenzo-p-dioxin | 0.1 |
1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin | 0.01 |
Octachlorodibenzo-p-dioxin | 0.0003 |
2,3,7,8-tetrachlorodibenzofuran | 0.1 |
1,2,3,7,8-pentachlorodibenzofuran | 0.03 |
2,3,4,7,8-pentachlorodibenzofuran | 0.3 |
1,2,3,4,7,8-hexachlorodibenzofuran | 0.1 |
1,2,3,6,7,8-hexachlorodibenzofuran | 0.1 |
1,2,3,7,8,9-hexachlorodibenzofuran | 0.1 |
2,3,4,6,7,8-hexachlorodibenzofuran | 0.1 |
1,2,3,4,6,7,8-heptachlorodibenzofuran | 0.01 |
1,2,3,4,7,8,9-heptachlorodibenzofuran | 0.01 |
Octachlorodibenzofuran | 0.0003 |
[89 FR 23335, April 3, 2024]
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