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

40 CFR Table 3 to Subpart X of Part 63: Table 3 to Subpart X 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 X—National Emission Standards For Hazardous Air Pollutants From Secondary Lead Smelting

Dioxin/furan congener Toxic equivalency factor

2,3,7,8-tetrachlorinated dibenzo-p-dioxin 1

1,2,3,7,8-pentachlorinated dibenzo-p-dioxin 1

1,2,3,4,7,8-hexachlorinated dibenzo-p-dioxin 0.1

1,2,3,7,8,9-hexachlorinated dibenzo-p-dioxin 0.1

1,2,3,6,7,8-hexachlorinated dibenzo-p-dioxin 0.1

1,2,3,4,6,7,8-heptachlorinated dibenzo-p-dioxin 0.01

octachlorinated dibenzo-p-dioxin 0.0003

2,3,7,8-tetrachlorinated dibenzofuran 0.1

2,3,4,7,8-pentachlorinated dibenzofuran 0.3

1,2,3,7,8-pentachlorinated dibenzofuran 0.03

1,2,3,4,7,8-hexachlorinated dibenzofuran 0.1

1,2,3,6,7,8-hexachlorinated dibenzofuran 0.1

1,2,3,7,8,9-hexachlorinated dibenzofuran 0.1

2,3,4,6,7,8-hexachlorinated dibenzofuran 0.1

1,2,3,4,6,7,8-heptachlorinated dibenzofuran 0.01

1,2,3,4,7,8,9-heptachlorinated dibenzofuran 0.01

octachlorinated dibenzofuran 0.0003

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