Note: For all listings above which contain the word "compounds" and for glycol ethers, the
following applies: Unless otherwise specified, these listings are defined as including any unique chemical
substance that contains the named chemical (i.e., antimony, arsenic, etc.) as part of that chemical's
X'CN where X = H' or any other group where a formal dissociation may occur. For example, KCN or Ca(CN)2
Revised per 65FR47342, 8/2/2000 Includes mono- and di-ethers of ethylene glycol, diethylene glycol, and
triethylene glycol R-(OCH2CH2)n-OR' where:
- n = 1, 2, or 3
- R = alkyl C7 or less
- R = phenyl or alkyl substituted phenyl
- R' = H or alkyl C7 or less
- OR' consisting of carboxylic acid ester, Sulfate, phosphate, nitrate, or sulfonate
- Ethylene Glycol monoButyl Ether (EGBE) was removed as a glycol ether compound on 11/29/2004
Includes mineral fiber emissions from facilities manufacturing or processing glass, rock, or slag fibers
(or other mineral derived fibers) of average diameter 1 micrometer or less.
Includes organic compounds with more than one benzene ring, and which have a boiling point greater than
or equal to 100oC.
- A type of atom which spontaneously undergoes radioactive decay.