1. Regulations
  2. title 40
  3. chapter I-i10
  4. part 63
  5. subpart W
  6. appendix-i 1

- Table 2 to Subpart W of Part 63—Toxic Equivalency Factors

Dioxin and Furan Congener Toxic
equivalency factor 		1,2,3,7,8-pentachlorodibenzo-p-dioxin1 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin0.1 1,2,3,7,8,9-hexachlorodibenzo-p-dioxin0.1 1,2,3,6,7,8-hexachlorodibenzo-p-dioxin0.1 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin0.01 octachlorodibenzo-p-dioxin0.0003 2,3,7,8-tetrachlorodibenzofuran0.1 2,3,4,7,8-pentachlorodibenzofuran0.3 1,2,3,7,8-pentachlorodibenzofuran0.03 1,2,3,4,7,8-hexachlorodibenzofuran0.1 1,2,3,6,7,8-hexachlorodibenzofuran0.1 1,2,3,7,8,9-hexachlorodibenzofuran0.1 2,3,4,6,7,8-hexachlorodibenzofuran0.1 1,2,3,4,6,7,8-heptachlorodibenzofuran0.01 1,2,3,4,7,8,9-heptachlorodibenzofuran0.01 Octachlorodibenzofuran0.0003
[89 FR 43275, May 16, 2024]

AUTHORITY: 42 U.S.C. 7401

SOURCE: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.