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

40 CFR Table 3 to Subpart QQQ of Part 63: Table 3 to Subpart QQQ of Part 63—2010 Toxic Equivalency Factors (TEFs)

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 QQQ—National Emission Standards for Hazardous Air Pollutants for Primary Copper Smelting

Table 3 to Subpart QQQ of Part 63—2010 Toxic Equivalency Factors (TEFs)

Congener TEF (mammals)

2,3,7,8-Te CDD 1

1,2,3,7,8-Pe CDD 1

1,2,3,4,7,8-HxCDD 0.1

1,2,3,6,7,8-HxCDD 0.1

1,2,3,7,8,9-HxCDD 0.1

1,2,3,4,6,7,8-HpCDD 0.01

OCDD 0.0003

2,3,7,8-Te CDF 0.1

1,2,3,7,8-Pe CDF 0.03

2,3,4,7,8-Pe CDF 0.3

1,2,3,4,7,8-HxCDF 0.1

1,2,3,6,7,8-HxCDF 0.1

2,3,4,6,7,8-HxCDF 0.1

1,2,3,7,8,9-HxCDF 0.1

1,2,3,4,6,7,8-HpCDF 0.01

1,2,3,4,7,8,9-HpCDF 0.01

OCDF 0.0003

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