United States
Environmental Protection
Agency

EPA530-R-08-001
February 2008

National Priority Chemicals Trends Report (2001-2005)

Section 4

Chemical Specific Trends Analyses for Priority Chemicals (2001-2005):
Priority Chemicals (PCs) Not Reportable to TRI

Hazardous Waste Minimization and Management Division
Office of Solid Waste
U.S. Environmental Protection Agency

Contact Information:

Bill Kline, Senior Data Analyst
Analysis & Information Branch
(540) 341-3631
kline.bill@epa.gov

Tammie Owen, Data Analyst
Analysis & Information Branch
(703) 308-4044
owen.tammie@epa.gov

Ben Lesser, Chief
Analysis & Information Branch
(703) 308-0314
lesser.ben@epa.gov


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Priority Chemicals (PCs) Not Reportable to TRI

Seven of the 31 PCs are not reported to TRI. As such, we currently are unable to analyze the generation and
management trends for these chemicals. EPA is continuing to evaluate the potential use of Hazardous Waste
Biennial Report (BR) data for future trends analyses of these PCs. We present some information about these
PCs, including the CAS number, alternative names, and general uses.

To find more information about these chemicals, please go to the following website:
http://www.epa.gov/epaoswer/hazwaste/minimize/chemlist.htm

Priority Chemicals (PCs) Not Reported to TRI

1,2,4,5-Tetrachlorobenzene



Acenaphthylene

4-Bromophenyl phenyl ether



Endosulfan, beta-/Endosulfan, alpha

Acenaphthene



Fluorene

Pyrene





1,2,4,5-Tetrachlorobenzene

Alternate Names - benzene tetrachloride, s-tetrachlorobenzene

General Uses - 1,2,4,5-Tetrachlorobenzene is used as an intermediate or building block to make
herbicides, insecticides and defoliants. It is also used to make other chemicals, such as
2,4,5-Trichlorophenol and 2,4,5-Trichlorophenoxyacetic acid.

4-Bromophenyl Phenyl Ether

Alternate Names - l-bromo-4-phenoxybenzene, 4-bromodiphenyl ether, p-bromodiphenyl ether,
4-bromophenoxybenzene, 4-bromophenyl phenyl ether

General Uses - 4-Bromophenyl phenyl ether is primarily used for research purposes. In the past, it
was used as a flame retardant.

Acenaphthene

Alternate Names - 1,2-dihydroacenaphthene, 1,2-dihydroacenaphthylene, 1,8-ethylenenaphthalene,
ethylene naphthalene, naphthyleneethylene, peri-ethylenenaphthalene

General Uses - Acenaphthene is used to make dyes, plastics and pesticides.

Acenaphthylene

Alternate Names - 1,2-dehydroacenaphthalene

General Uses - Acenaphthylene is used to make dyes, plastics and pesticides.

Endosulfan, beta-/Endosulfan, alpha

Alternate Names - hexachloro-5-norbornene-2,3-dimethanol, cyclic sulfite

General Uses - Endosulfan is used as an insecticide on crops. It has not been produced in the United
States since 1982, but it has been used to make other chemicals.

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Fluorene

Alternate Names - 2,2'-methylenebiphenyl, 2,3-benzindene, o-biphenylenemethane, 9H-fluorene,
alpha-diphenylenemethane-9H-fluorene, diphenylenemethane

General Uses - Fluorene is used to make dyes, plastics and pesticides.

Pyrene

Alternate Names - benzo[def]phenanthrene, beta-pyrene

General Uses - Pyrene is used to make dyes, plastics and pesticides. It is also used to make
benzo(a)pyrene.

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