TRI & RSEI Evaluations
The Use of the Risk Screening
Environmental Indicators (RSEI)
Program to evaluate 13 Counties
of Northwest Florida
What Is the Toxics Release Inventory (TRI)?

The TOXICS RELEASE INVENTORY
Begun in 1988, the Toxics Release
Inventory contains information on
releases of nearly 650 chemicals and
chemical categories from industries
including manufacturing, metal and coal
mining, electric utilities, and commercial
hazardous waste treatment, among
others.
http://www.epa.gov/triexplorer
http://www.epa.gov/enviro
http://www.scorecard.org

http://www.rtk.net



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What Is the Risk-Screening
Environmental Indicators Model?
RSEI is a screening-level model for assessing potential
chronic human health impacts of industrial releases of
toxic chemicals:
RSEI provides the following types of screening analyses:

Pounds

Hazard

Risk-related
RSEI uses TRI pounds of release data and adds toxicity, fate
and transport, and an estimate of exposed population to
allow new perspectives on hazard and risk.
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Where Do You Want Me To Start???

A. Who Reports to TRI??

B. How Does RSEI Work??

C. How is RSEI Data
Processed??

D. The NW FL Example
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TRI REPORTING PROCESS
Covered Primary
SIC Code(s) or
Federal facility?
Ten Employees?
(20,000 hours)
YES
NO
MPOU*
Section 313
Chemicals?
YES
STOP
YES
NO
NO
MPOU*
Thresholds
Exceeded?
NO
YES
Reporting Thresholds Met; Form R/Form A Required
*MPOU: Manufacture (including import), process, or otherwise use
Introduction
to TRI
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Introduction
to TRI
Reporting
Exemptions
Determining
Thresholds
Form R/
Form A
PBT
Overview
COVERED SIC CODES
Industrial Sector
Manufacturing
Metal mining
Coal mining
Electrical utilities
Treatment,
Storage, and
Disposal facilities
Solvent recovery
services
Chemical
distributors
Petroleum bulk
terminals
Introduction
to TRI
Primary SIC Code
20-39
10 (except 1011, 1081, and 1094)
12 (except 1241)
4911, 4931, and 4939, limited to facilities that
combust coal and/or oil for the purpose of generating
electricity for distribution in commerce
4953, limited to RCRA Subtitle C permitted or interim
status facilities
7389, limited to facilities primarily engaged in solvent
recovery services on a contract or fee basis
5169
5171
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Introduction
to TRI
Reporting
Exemptions
Determining
Thresholds
Form R/
Form A
PBT
Overview
THRESHOLDS TRIGGERING EPCRA SECTION
313 REPORTING

A facility meeting the SIC code (or
Federal facility) and employee criteria
must file a TRI report for a non-PBT
Section 313 chemical if the facility
(40CFR§372.25):
• Manufactured (including imported) more
than 25,000 pounds per year, or
• Processed more than 25,000 pounds per
year, or
• Otherwise used more than 10,000 pounds
per year

Threshold calculations are based on
cumulative quantities per Section 313
chemical over the reporting year
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THRESHOLDS TRIGGERING EPCRA SECTION
313 REPORTING

If a facility manufactures, processes, or
otherwise uses any chemicals that are listed
as persistent, bioaccumulative, and toxic
(PBT), the threshold quantity is one of the
following per Section 313 chemical or
category per year (40CFR§372.28):
Type of Chemical
Reporting Threshold, by Activity
Manufacture
Process
Otherwise use
Highly persistent and
bioaccumulative
compounds
Dioxin and dioxin-like
compounds
10 pounds
10 pounds
10 pounds
0.1 grams
0.1 grams
0.1 grams
Other persistent and
bioaccumulative
compounds (lead and
lead compounds)
100 pounds
100 pounds
100 pounds
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Additional Resources
.
Additional Resources

EPA Toxics Release Inventory (TRI)
Home Page http://www.epa.gov/tri

EPA EPCRA Hotline (800) 424-9346

EPA Envirofacts: http://www.epa.gov/enviro

TRI Explorer: http://www.epa.gov/triexplorer
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EPA’s
Risk-Screening Environmental Indicators
(RSEI)
What Is the Risk-Screening
Environmental Indicators Model?
RSEI is a screening-level model for assessing potential
chronic human health impacts of industrial releases of
toxic chemicals:
RSEI provides the following types of screening analyses:

Pounds

Hazard

Risk-related
RSEI uses TRI pounds of release data and adds toxicity, fate
and transport, and an estimate of exposed population to
allow new perspectives on hazard and risk.
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RSEI and Risk Assessment
RSEI incorporates components of risk assessment:
 Amount of chemical released
 Toxicity of the chemical
 Fate and transport of the chemical
 Route and extent of human exposure
 Number of people affected
RSEI is not a formal risk assessment, but is useful for
performance measurement, prioritization, and trend analysis
because it systematically incorporates toxicity and exposure
considerations in a screening-level analysis.
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How RSEI Works -- Calculations

Risk-related results = Surrogate
Dose * Toxicity Weight * Population

Hazard-based results = Pounds *
Toxicity Weight

Pounds-based results = TRI Pounds
released
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RSEI Model Details
Inhalation (Air) surrogate dose divides U.S. and territories into 1-km x 1-km grid
cells
calculates air concentrations for each cell in
101 x 101 km grid around facilities
 uses population-specific exposure factors
Ingestion (Water) surrogate dose  calculates water concentrations in receiving
streams up to 200 km downstream of outflow
 finds downstream drinking water intakes
 calculates fish ingestion exposure for population
within 80 km of receiving stream
 uses population-specific exposure factors
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What Kinds of Questions Can RSEI
Answer?

What are the trends in hazard and risk associated with
toxic chemical releases and other waste management
activities at industrial facilities?

When comparing industries, how can I rank which
industry sectors are associated with relatively more risk?

What is the relative contribution of specific chemicals to
overall risk in a community (state, county, city), and how
do I prioritize these for follow-up activities?

For any given scenario, what release pathway for a
particular chemical poses the greatest risk-related
concerns?

Also questions concerning: Tribal lands, EJ issues,
important age groups (e.g., children & elderly), etc.
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Points to Remember
RSEI PROVIDES QUICK PERSPECTIVES ON HAZARD &
RISK, BUT IS ONLY THE FIRST STEP!

RSEI uses facility-reported TRI data which can contain
reporting errors. TRI data is limited to major industrial
point sources.

RSEI toxicity weights are based on chronic human
toxicity associated with long-term exposure and do not
address acute human toxicity or environmental toxicity.

Dermal and food ingestion pathways (other than fish
consumption), as well as some other indirect exposure
pathways are not evaluated.
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Points to Remember cont.

Metals and metal compounds are assumed to be
released in the valence (or oxidation) state associated
with the highest chronic toxicity weight.

Some generic assumptions for stack heights,
diameters, and exit gas velocities are used where
facility-specific data are unavailable.

RSEI results do not indicate whether hazard or risk
from a chemical or facility is “acceptable” or
“unacceptable” to a population or individual.

RSEI is useful in many applications where TRI
pounds have been used as a risk surrogate.
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Northwest Florida
2003 TRI Pounds Released
County by Media
35,000,000
30,000,000
Land
Water
Air
20,000,000
UI
15,000,000
10,000,000
FL,GADSDEN
FL,LIBERTY
FL,WAKULLA
FL,GULF
FL,OKALOOSA
FL,JACKSON
FL,LEON
FL,SANTA ROSA
0
FL,BAY
5,000,000
FL,ESCAMBIA
TRI Pounds
25,000,000
0
FL,WAKULLA
20,000
FL,LIBERTY
FL,GULF
FL,GADSDEN
FL,OKALOOSA
FL,LEON
FL,SANTA ROSA
FL,JACKSON
FL,BAY
FL,ESCAMBIA
Relative Risk Value
Northwest Florida
TRI Relative Risk Values
2003 County by Media
25,000
Water
Air
15,000
10,000
5,000
0
UI
Air
Water
Land
GULF POWER SCHOLZ
TALLAHASSEE
HOPKINS STATION
SPURLIN
INDUSTRIES INC
ARIZONA CHEMICAL
AIR PRODUCTS &
CHEMICALS
STONE CONTAINER
INT'L PAPER
PENSACOLA
GULF POWER LANSING
GULF POWER -CRIST
SOLUTIA INC.
TRI Pounds
Northwest Florida
2003 TRI Releases
Top Ten Facilities by Media
25,000,000
20,000,000
15,000,000
10,000,000
5,000,000
0
7,000
AIR PRODUCTS &
CHEMICALS INC
STERLING FIBERS SANTA ROSA
TALLAHASSEE
HOPKINS STATION
GULF POWER LANSING
APAC SOUTHEAST
HUNTSMAN
PETROCHEMICAL
GULF POWER - CRIST
ALLIANCE LAUNDRY
SYSTEMS
STONE CONTAINER
CORP
INT'L PAPER
PENSACOLA
Relative Risk Value
Northwest Florida
2003 TRI Relative Risk Values
Top Ten Facilities by Media
10,000
9,000
8,000
Water
Air
6,000
5,000
4,000
3,000
2,000
1,000
Northwest Florida
2003 TRI Releases
Top Eight Facilities by Chemical
20,000,000
Barium compounds
18,000,000
Manganese compounds
Sulfuric acid
16,000,000
Ammonia
n-Butyl alcohol
14,000,000
12,000,000
Formic acid
Methanol
10,000,000
Hydrochloric acid
Nitrate compounds
8,000,000
6,000,000
4,000,000
GULF POWER - SCHOLZ
TALLAHASSEE
HOPKINS STATION
AIR PRODUCTS &
CHEMICALS
STONE CONTAINER
INT'L PAPER
PENSACOLA
GULF POWER - LANSING
0
GULF POWER -- CRIST
2,000,000
SOLUTIA INC.
TRI Pounds
Cyclohexanol
Northwest Florida
2003 TRI Relative Risk Values
Top Eight Facilities by Chemical
9,000
Chromium
Lead
8,000
7,000
Acetaldehyde
6,000
Polycyclic aromatic
compounds
Mercury
Manganese
5,000
Maleic anhydride
4,000
Hydrochloric acid
Sulfuric acid
3,000
2,000
TALLAHASSEE HOPKINS
STATION
GULF POWER - LANSING
APAC SOUTHEAST
HUNTSMAN
PETROCHEMICAL
GULF POWER - CRIST
ALLIANCE LAUNDRY
SYSTEMS
0
STONE CONTAINER
CORP
1,000
INT'L PAPER
PENSACOLA
Relative Risk Value
Chlorine dioxide
RSEI Team Contacts

Gary Cole: (202) 564-8811

Richard Engler: (202) 564-8587

Robert Lee: (202) 564-8786

Cody Rice: (202) 564-8769
URL:
http://www.epa.gov/oppt/rsei
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Region 4 CONTACT INFORMATION
Ezequiel Velez, EPA Region 4
Toxics Release Inventory (TRI) Coordinator
Tel. (404) 562-9191
velez.ezequiel@epa.gov
Douglas Chatham, EPA Region 4
TRI Program Assistant
Tel. (404) 562-9113
chatham.douglas@epa.gov
U.S. EPA Region 4
61 Forsyth Street, S.W.
Atlanta, GA 30303
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