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

40 CFR Table 1 to Subpart XX of Part 63: Table 1 to Subpart XX of Part 63—Hazardous Air Pollutants

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER C—AIR PROGRAMS
  4. PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
  5. Subpart XX—National Emission Standards for Ethylene Manufacturing Process Units: Heat Exchange Systems and Waste Operations

Hazardous air pollutant CAS No.

Benzene 71432

1,3-Butadiene 106990

Cumene 98828

Ethyl benzene 100414

Hexane 110543

Naphthalene 91203

Styrene 100425

Toluene 108883

o-Xylene 95476

m-Xylene 108383

p-Xylene 106423

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

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