The EPA issued a regulation in November 2022 that added 12 compounds to the list of dangerous chemicals that must be reported to the Toxics Release Inventory (TRI). The information at hand indicates that these substances are either very harmful to aquatic species or have a moderately high to high toxicity to human health.

EPA has identified that :

• One of the substances as a persistent, bioaccumulative, and toxic (PBT) chemical with a reporting threshold of 100 pounds. HHCB, also known as 1,3,4,6,7,8, Hexahydro-4,6,6,7,8,8, Hexamethylcyclopenta[g]-2-benzopyran.
• This regulation gives communities crucial information about how harmful chemicals are handled locally.The chemicals now subject to TRI reporting requirements are:

SUBSTANCE NAME CAS NO
Dibutyltin dichloride 683-18-1
1,3-Dichloro-2-propanol Maria Anders
Formamide 75-12-7
1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran 1222-05-5
N-Hydroxyethylethylenediamine 111-41-1
Nitrilotriacetic acid trisodium salt 5064-31-3
p-(1,1,3,3-Tetramethylbutyl)phenol 140-66-9
1,2,3-Trichlorobenzene 87-61-6
Triglycidyl isocyanurate 2451-62-9
Tris(2-chloroethyl) phosphate 115-96-8
Tris(1,3-dichloro-2-propyl) phosphate 13674-87-8
Tris(dimethylphenol) phosphate 25155-23-1

"TRI tracks the management of specific dangerous compounds that may pose a threat to human health and the environment." The amount of each chemical released into the environment or managed through recycling, energy recovery, and treatment must be reported annually by U.S. establishments in several industry sectors. (A chemical is said to be "released" if it is released into the air, water, or is disposed of on land.)


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