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):

Introduction

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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Section 4

Chemical Specific Trends Analyses for Priority Chemicals

(2001-2005)

Introduction

Section 4 presents national, EPA region, state, county, and industry sector trends for each of the 24 PCs
reported to TRI. We also provide basic information regarding the PC, including its alternative names (if any),
and general uses. To find more descriptive information including potential hazards for each of these chemicals,
please go to the following website: http://www.epa.gov/epaoswer/hazwaste/minimize/chemlist.htm.

Of the 31 PCs, seven are not reported to TRI and therefore we do not have data regarding the generation and
management of these chemicals. However, we present a description of each of these PCs at the end of this
section.

Priority Chemicals (PCs) Reported to TRI

1,2,4 - Trichlorobenzene

Lindane

2,4,5 - Trichlorophenol

Mercury and mercury compounds

Anthracene

Methoxychlor

Benzo(g,h,i)perylene

Naphthalene

Cadmium and cadmium compounds

Pendimethalin

Dibenzofuran

Pentachlorobenzene

Dioxins and Dioxin-like compounds

Pentachlorophenol

Heptachlor

Phenanthrene

Hexachloro-1, 3-butadiene

Polychlorinated biphenyls (PCBs)

Hexachlorobenzene

Polycyclic aromatic compounds (PACs)

Hexachloroethane

Quintozene

Lead and lead compounds

Trifluralin

Priority Chemicals (PCs) Not Reported to TRI

1,2,4,5-Tetrachlorobenzene

Endosulfan, alpha, beta

4-Bromophenyl phenyl ether

Fluorene

Acenaphthene

Pyrene

Acenaphthylene



Due to the particularly high Agency interest of mercury and mercury compounds, we include an expanded
section on this chemical in which we describe the various ongoing projects to reduce or eliminate mercury.

Also, air emissions and surface water discharges are not included. As such, please note that the quantities of
numerous of PCs, derived using this methodology, might differ from the quantities observed in the raw TRI
data because the quantity for a given PC is a subset of the overall TRI data for that PC.

Facilities Only Recycling PCs

The primary focus of this Report is to identify those quantities of the PCs (as reported to TRI) that are amenable
to waste minimization, i.e., those quantities of PCs that are currently land disposed, treated, or sent to energy
recovery. Numerous facilities that use one or more of these methods to manage wastes containing PCs also
might recycle a portion of these wastes. We discuss these recycled quantities of the PCs for the purpose of
providing some perspective regarding the extent to which PCs are already recycled by facilities that also report
PC quantities that are potentially available for waste minimization, including recycling.

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However, for numerous PCs, facilities reported they used only recycling to manage one or more of the PCs in
2005. For completeness, we also present these quantities in a separate section at the end of the each PC write-
up, if applicable. Facilities that only recycle their wastes containing PCs might offer insights about how to
further enhance minimization of wastes containing PCs and thus decrease or even completely avoid using land
disposal, treatment, and energy recovery to manage wastes containing the PCs.

Priority Chemicals Reportable to TRI

For each of the 24 PCs (in alphabetical order) that are reported to TRI, we present generation and management
trends from national, regional, state, county, and industry perspectives.

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