Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR Table 2 to Subpart W of Part 63: Table 2 to Subpart W of Part 63—Toxic Equivalency Factors

Where this section sits in the code

Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER C—AIR PROGRAMS
PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
Subpart W—National Emission Standards for Hazardous Air Pollutants for Epoxy Resins Production and Non-Nylon Polyamides Production

Dioxin and Furan Congener Toxic equivalency factor

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

2,3,4,7,8-pentachlorodibenzofuran 0.3

1,2,3,7,8-pentachlorodibenzofuran 0.03

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

Collected 2026-08-27T02:26:04Z. Source file · JSON