GroundRules
40 CFR Appendix: Table 1 to Subpart HHH of Part 63: Appendix: Table 1 to Subpart HHH of Part 63—List of Hazardous Air Pollutants (HAP) for Subpart HHH
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 HHH—National Emission Standards for Hazardous Air Pollutants From Natural Gas Transmission and Storage Facilities
CAS Number a Chemical name
75070 Acetaldehyde
71432 Benzene (includes benzene in gasoline)
75150 Carbon disulfide
463581 Carbonyl sulfide
100414 Ethyl benzene
107211 Ethylene glycol
75050 Acetaldehyde
50000 Formaldehyde
110543 n-Hexane
91203 Naphthalene
108883 Toluene
540841 2,2,4-Trimethylpentane
1330207 Xylenes (isomers and mixture)
95476 o-Xylene
108383 m-Xylene
106423 p-Xylene
a CAS numbers refer to the Chemical Abstracts Services registry number assigned to specific compounds, isomers, or mixtures of compounds.
Collected 2026-08-27T02:26:04Z. Source file · JSON