ILLINOIS POLLUTION CONTROL BOARD
April 26, 1990
IN THE MATTER OF:
TOXIC AIR CONTAMINANTS LIST
)
R90-l
(35 ILL. ADM. CODE PART 232)
)
(Rulemaking)
PROPOSED RULE. FIRST NOTICE.
OPINION AND ORDER OF THE BOARD (by J. Marlin):
On April 17, 1990, the Board received the Illinois
Environmental Protection Agency’s (“Agency”) Amended Proposal of
Regulations, Amended Statement of Reasons, Addendum to Exhibit 6
and Amended Exhibits 7-9. Today the Board proceeds to First Notice
with the Agency’s amended Air Toxics proposal and accepts it for
hearing.
On January 11, 1990 the Board docketed the Agency’s original
proposal but directed its Hearing Officer, in consultation with
the Scientific and Technical Section, to prepare a document
specifying the deficiencies in the proposal. This document was
transmitted to the Agncy and entered into the record. The Board
requested that the Agency amend its proposal to comply with certain
drafting requirements. The Agency has now returned its Amended
Proposal with additional supporting materials as noted above.
In its January 11, 1990 Order the Board also requested that
the Agency address the issue as to how Section 9.5(c), an exemption
of rulemakings pursuant to that Section from the economic impact
requirements of Section 27(b), should be construed in light of
amendments to the economic impact requirements of Section 27(a) by
P.A. 85—1048 (SB 1834). In its Amended Statement of Reasons the
Agency states:
“neither the language of Senate Bill 1834, nor its
legislative history, states any intent to amend
subsection 9.5(c). Further, neither the language of
Senate Bill 1834, nor its legislative history, states
that the exemptions. from an EcIS stated in subsection
27(b) are intended to be exclusive.”
The Board concurs with these remarks of the Agency. The Board
notes that, as construed, Section 9.5(c) of the Act exempts this
rulemaking from the economic impact statement requirements of
Section 27(b).
The Board today acts to send this regulatory proposal to First
Notice without ruling on the merits of the proposal. As noted
previously, this proposal is required pursuant to Section 55.2 of
the Act. The Board directs the Clerk of the Board to cause the
publication of the proposal in the Illinois Register. This action
I 10—479
2
does not constitute the Board’s adoption of a substantive position
concerning the proposal.
Notwithstanding the above, the Board has made minor changes
in the proposal in order to better reflect the perceived intent in
drafting and to correct minor deficiencies. The first of these is
to remove certain brackets around phrases where the bracketing was
felt to be inappropriate Administrative Procedure Act form.
Second, the references in Section 232. APPENDIX B have been
modified to reflect that they refer to procedures for calculating
dose and toxicity scores rather than chronic toxicity scores.
Finally, Section 232.320(b) has been altered to complete an
incomplete sentence. The Agency is invited to comment as to
whether these changes are appropriate.
In addition to the foregoing, the Board directs the Hearing
Officer to set a hearing date for this proposal; to establish
deadlines for the pre—filing of testimony and exhibits for those
who wish to introduce evidence at the merit hearings; and, to
establish deadlines for the pre-filing of questions. Those who do
not pre—file such materials will be able to present their evidence
only if time permits at the end of the hearing process. The Board
believes that such procedures will accelerate the rulemaking
process and at the same time provide continued opportunity for
public participation.
ORDER
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE B: AIR POLLUTION
CHAPTER .1: POLLUTION CONTROL BOARD
SUBCHAPTER f: TOXIC AIR CONTAMINANTS
PART 232
TOXIC AIR CONTAMINANTS
SUBPART A: GENERAL PROVISIONS
Section
232. 100 Introduction
232.110 Incorporation by Reference
232.120 Definitions
SUBPART B: DETERMINATION OF A TOXIC AIR CONTAMINANT
Section
232.200 Characteristics for Determining a Toxic Air Contaminant
232.210 Listing of a Toxic Air Contaminant
SUBPART C: PROCEDURES FOR EVALUATING CHARACTERISTICS
OF A TOXIC AIR CONTAMINANT
110—480
3
Section
232.300 Purpose
232.310 Procedure for Determining the Toxicity Score
232.320 Carcinogen Classification
SUBPART D: IDENTIFICATION REQUIREMENTS FOR NEW EMISSION SOURCES
Section
232.400
232.410
232.420
232.430
232.440
232.450
Listing and Delisting of Toxic Air Contaminants
Listing and Delisting of Potential Toxic Air Contaminants
List of Toxic Air Contaminants
Procedures for Calculating the Lowest
Toxic Dose Score
Categories A, Bi, and B2 Carcinogens of
the reference United States
Environmental Protection Agency, Office
of Health and Environmental Assessment,
Integrated Risk Information System
(IRIS), as of December 31, 1989
AUTHORITY: Implementing Section 9.5 and authorized by Section 27
of the Environmental Protection Act (Ill. Rev. Stat. 1987, ch.
Ill 1/2, pars. 1009.5.and 1027).
SOURCE: Adopted at
____
Ill. Reg.
SUBPART A: GENERAL PROVISIONS
Section 232.100
Introduction
This Part establishes a program to identify toxic air
contaminants in Illinois. It includes a list of toxic air
contaminants, the procedures to determine a toxic air
contaminant, the procedures to amend the list, and identification
requirements for new emission sources.
Section 232.110
Incorporation by Reference
a) The following materials are incorporated by reference:
Purpose
Exceptions to Identification Requirements for
Emission Sources
Identification Requirements
Agency Authority
Public Participation
List of Potential Toxic Air Contaminants
Identification Requirements
SUBPART E: LISTING AND DELISTING
Section
232.500
232. 510
New
for
Section 232.APPENDIX A:
Section 232.APPENDIX B:
Section 232.APPENDIX C:
110—481
4
American Conference of Governmental Industrial
Hygienists (ACGIH). Threshold Limit Values and
Biological Exposure Indices for 1989—1990 (1989).
Document can be obtained from: ACGIH, 6500 Glenway
Avenue., Building D-7, Cincinnati, OH 45211-4438.
United States Department of Health and Human Services,
Public Health Service, National Toxicological Program
(NTP). Fifth Annual Report on Carcinogens (1989).
Document can be obtained from: National Technical
Information Service, 5285 Port Royal Road, Springfield,
VA 22161.
World Health Organization, International Agency for
Research on Cancer (IARC). Monographs on the
Evaluation of Carcinogenic Risks to Humans, Overall
Evaluations of Carcinogenicity: An Updating of IARC
Monographs Volumes 1 to 42, Supplement 7 (1987).
Document can be obtained from: WHO Publications Centre
USA, 49 Sheridan Avenue, Albany,
N.Y.
12210.
b) This Section incorporates no future editions or
amendments.
Section 232.120
Definitions
The definitions of 35 Ill. Adm. Code 201.102, 211.122 and 215.104
apply to this Part, as well as the definitions contained in this
Section. Where a definition contained in this Section is more
specific than those found in 35 Ill. Adm. Code 201.102, 211.122
and 215.104, it must take precedence in application of this Part.
“Adverse Health Effect” means a health injury or
disease that may be produced by exposure to a
contaminant. This includes any decrement in the
function of an organ or organ system or any subclinical
organ lesion that is likely to lead to a decrement in
an organ or organ system function.
“Emits” or “Emission” or “Emitted” means any
non—accidental release into the atmosphere from an
emission source or air pollution control equipment, or
fugitive emissions defined according to 35 Ill. Adm.
Code 203.124.
“LC5O” means the concentration in air of a contaminant
that kills, or is estimated to kill, 50 percent of a
population of laboratory animals where the exposure is
brief (8 hours or less) and where the route of exposure
is inhalation.
110—482
5
“LD5O” means the dose of a contaminant that kills, or
is estimated to kill, 50 percent of a population of
laboratory animals where the route of exposure is
ingestion.
“Lowest Observed Adverse Effect Level” means the lowest
experimentally determined dose at which a statistically
or biologically significant indication of the toxic
effect of concern is observed.
“New Emission Source” means an emission source or air
pollution control equipment for which a construction
permit is required by 35 Ill. Adm. Code 201 after the
effective date of these rules; or an emission source or
air pollution control equipment for which an operating
permit is required by 35 Ill. Adm. Code 201, where the
owner or operator failed to apply for a construction
permit and applies for the first operating permit.
“No Observed Effect” means the condition where no
adverse health effect has been detected.
“Potential Toxic Air Contaminant” means a contaminant
which meets the characteristics identified in
subsections 232.200(b) or (c).
“Toxic Air Contaminant” means a contaminant which meets
the characteristics identified in Section 232.200(a)
and (b) or (c), or is listed in Appendix A.
SUBPART B: DETERMINATION OF A TOXIC AIR CONTAMINANT
Section 232.200
Characteristics for Determining a Toxic Air
Contaminant
The following characteristics determine whether a contaminant is
a toxic air contaminant:
a) a contaminant which is or has been emitted into the
atmosphere in Illinois or is reported to be emitted
into the atmosphere in Illinois after the effective
date of these rules pursuant to Subpart D or to 35 Ill.
Adm. Code 201, and
b) a contaminant which has a Toxicity Score of 3 or
greater using the procedures for determining the
Toxicity Score described in Section 232.310, or
c) a contaminant which is classified as a carcinogen
according to Section 232.320.
Section 232.210
Listing of a Toxic Air Contaminant
110-483
6
The Agency will propose to the Board for listing any contaminant
which has been determined by the Agency to meet the
characteristics identified in Section 232.200. The contaminants
found by the Board to be toxic air contaminants are listed in
Appendix A.
SUBPART C: PROCEDURES FOR EVALUATING
CHARACTERISTICS OF A TOXIC AIR CONTAMINANT
Section 232.300
Purpose
This Subpart identifies the procedures used to evaluate the
characteristics of a toxic air contaminant. The Agency will use
these procedures in proposing to list toxic air contaminants in
Appendix A. The scores resulting from the use of these
procedures will not be used to determine any particular control
strategy.
Section 232.310
Procedure for Determining the Toxicity Score
The Toxicity Score is the sum of the Acute Lethality Score and
the Chronic Toxicity Score. The Acute Lethality Score is a
number which indicates a contarninant’s potential to cause death.
The Chronic Toxicity Score is a number which indicates a
contaminant’s potential to cause adverse health effects after
chronic exposure.
a) Procedure for Determining the Acute Lethality Score
1) The Acute Lethality Score is derived from
toxicological studies using laboratory rats. One
of two routes of exposure is used: inhalation or
ingestion. Values derived from inhalation are
used in preference to values derived from
ingestion.
2) The Acute Lethality Score is derived from the
following table:
Inhalation Concentration (LC5O)
Acute
Lethality Score
Less than: 500 mg/cu. m
3
500—4999 mg/cu. m
2
5000—50000 mg/cu. m
1
Greater than: 50000 mg/cu. in
0
or, if the above data are not available:
Ingestion Dose (LD5O)
Acute
Lethality Score
110—484
7
Less than: 50 mg/kg
3
50—499 mg/kg
2
500—5000 mg/kg
1
Greater than: 5000 mg/kg
0
b) Procedure for Determining the Chronic Toxicity Score
The Chronic Toxicity Score is the product of the Lowest
Toxic Dose Score and the Severity of Effects Score.
1) Procedure for Determining the Lowest Toxic Dose
Score
A) The Lowest Toxic Dose Score is a number based
upon the lowest dose of a contaminant that
causes an observable adverse health effect.
The Lowest Toxic Dose Score is derived from
the following table:
Dose
Lowest Toxic Dose Score
Less than: 5 mg/kg/day
5-50 mg/kg/day
2/3
Greater than: 50 mg/kg/day
1/3
B) Procedures for calculating the lowest dose
which causes any adverse health effect or the
Lowest Toxic Dose Score are described in
Appendix B.
2) Procedure for Determining the Severity of Effects
Score
The Severity of Effects Score is a number based
upon the organ(s) affected and the level of effect
upon the organ(s).
A) Organ Categories
There are three categories of organs or organ
systems which are identified as follows:
Category Description
I)
Category I
Category I includes:
organs, the impairment or
loss of which is fatal or
usually cannot be
compensated for by the
110—485
8
body; gonads, the loss of
which prevents the
transmission of genetic
material; and, adverse
reproductive outcome
including stillbirth,
miscarriage, or reduced
litter size (animal
studies). The Category I
organs are: Lungs,
Heart, Brain, Spinal
Cord, Kidneys, Liver,
Bone Marrow, and Gonads.
ii) Category II Category II includes:
organs, the impairment or
loss of which may be
fatal, but which can be
compensated for by drug
or replacement therapy;
adverse effect on an
immune function which may
be life threatening;
changes in the
composition or function
of blood constituents
which may be life
threatening; and, certain
fetotoxic effects
including premature
birth, reduced birth
weight, and reduced
morphometric parameters.
The Category II organs
are: Adrenals, Thyroids,
Parathyroids, Pituitary,
Pancreas, Esophagus,
Stomach, Small Intestine,
Large Intestine, Lymph
Nodes, Thymus, Trachea,
Pharynx.
iii) Category III Category III includes:
organs, the impairment or
loss of which is not life
threatening but may
result in functional or
emotional handicaps; and,
changes in the
composition or function
of blood which are not
life threatening but may
110—486
9
result in functional
handicaps. Category III
organs include, but are
not limited to:
Oviducts, Epididymides,
Uterus, Prostrate,
Seminal Vesicles, Ductus
Deferens, Penis, Vagina,
Eyes, Bone, Nose,
Peripheral Nerves,
Muscles, Urinary Bladder,
Blood Vessels, Ears,
Gallbladder, Larynx,
Mammary Glands, Salivary
Glands, Skin, Spleen,
Tongue, Teeth, Ureter,
Urethra.
B) Levels of Effect
There are four levels of effect: Serious
Irreversible (“SI”); Serious Reversible
(“SR”); Non—serious Irreversible (“NI”); and
Non-serious Reversible (“NR”).
i) A serious effect is an incapacitating
condition or a condition which
significantly contributes to an increase
in mortality.
ii) A non-serious effect is a
non-incapacitating condition or a
condition which is unlikely to
contribute to an increase in mortality.
iii) An irreversible effect is one that is
permanent or would require medical
treatment to correct.
iv) .A reversible effect is a temporary
effect.
C) Table of Severity of Effects Scores
The following table presents the Severity of
Effects Scores for any lôvel of effect
observed in an organ belonging to a specified
organ category.
Level of
Organ Category
Effect
I
II
III
110—487
10
SI
6
5
4
SR
5
4
3
NI
4
3
2
NR
3
2
1
No Observed
Effect
0
0
0
D) When a study identifies an adverse health
effect on multiple organs within the same
category at the lowest observed adverse
effect level, the Severity of Effects Score
is increased by a value of 1. In no event
can the Severity of Effects Score be greater
than 6.
Section 232.320
Carcinogen Classification
For purposes of this Part, the Agency will consider a contaminant
to be a carcinogen if it is classified in the manner described in
the following table by one or more of the carcinogen references.
a) Reference
.
Classification
ACGIH
Category Al Carcinogen or
Category A2 Carcinogen
IARC
Category 1 Carcinogen or
Category 2A/2B Carcinogen
IRIS
Category A Carcinogen or
Category Bl/B2 Carcinogen
NTP
Human Carcinogen or
Anticipated Human Carcinogen
b) The references ACGIH, IARC, and NTP are incorporated by
reference in Section 232.110. Categories A, Bl, and B2
are carcinogens classified by the United States
Environmental Protection Agency, Office of Health and
Environmental Assessment, Integrated Risk Information
System (IRIS), as of December 31, 1989, and are listed
in Appendix C.
SUBPART D: IDENTIFICATION REQUIREMENTS FOR NEW EMISSION SOURCES
Section 232.400
Purpose
This Subpart establishes potential toxic air contaminant and
toxic air contaminant identification requirements for new
emission sources, and describes procedures to determine and list
the potential toxic air contaminants that new emission sources
must identify.
110— 4 88
11
Section 232.410
Exceptions to Identification Requirements for
New Emission Sources
The requirements of this Subpart do not apply to the following:
a) retail dry cleaning operations;
b) retail and noncommercial storage and handling of motor
fuels;
C)
combustion processes using only commercial fuel (which
does not include hazardous waste)
,
including internal
combustion engines; and
d) any emission source or air pollution control equipment
for which a permit is not required by 35 Ill. Adm. Code
201.
Section 232.420
Identification Requirements
a) An owner or operator of a new emission source shall
identify with each permit application for that emission
source, by name and Chemical Abstract Service Number
where applicable, each contaminant identified in
subsection (b) which is or will be emitted by the new
emission source.
b) The identification requirements apply to:
1) toxic air contaminants listed in Appendix A, and
2) potential toxic air contaminants listed in the
Agency document entitled “Potential Toxic Air
Contaminants for Identification Requirements.”
Section 232.430
Agency Authority
The Agency will:
a) identify and score according to the procedures in
Subpart C contaminants not listed as toxic air
contaminants;
b) for those contaminants that meet the characteristics of
subsections 232.200 (b) or
(C),
provide public notice
and an opportunity to comment according to Section
232.440 on the basis for listing as a potential toxic
air contaminant; and
c) publish annually the Agency document entitled
“Potential Toxic Air Contaminants for Identification
1 10—489
12
Requirements,” which will list those contaminants that
meet the characteristics of subsections 232.200 (b) or
(c).
Section 232.440
Public Participation
a) The Agency will fulfill the public participation
requirements set forth below before listing or
delisting a contaminant in the Agency document entitled
“Potential Toxic Air Contaminants for Identification
Requirements.”
1) The Agency will maintain a Potential Toxic Air
Contaminant Review Notice List. Any person who
requests in writing to the Agency will be placed
on the Potential Toxic Air Contaminant Review
Notice List.
2) The Agency will notify persons on the Potential
Toxic Air Contaminant Review Notice List of its
intent to list a potential toxic air contaminant.
This notice will contain, at a minimum, the
following:
A) the potential toxic air contaminant name and
Chemical Abstract Service Number where
applicable;
B) the basis of listing (the Toxicity Score or
carcinogen classifications) ;
C) the citations to any applicable studies or
reports; and
D) the date, time, and place of at least one
public workshop to be held in order to review
the basis for listing as a potential toxic
air contaminant and to obtain oral and
written comments.
3) The notice of intent to list a potential toxic air
contaminant will be mailed no later than 90 days
prior to the date of the first workshop.
4) The Agency will prepare and distribute to all
participants a responsiveness summary as to the
basis for the Agency’s decision.
b) The Agency will maintain a permanent file for each
potential toxic air contaminant. In addition to
documents obtained by the Agency, this file will also
contain all written public comments and documents
110—4 90
13
provided by the public. A copy of this file will be
provided to the Board when a proposal for listing or
delisting a toxic air contaminant is submitted pursuant
to Subpart E, or upon written request of any person.
Section 232.450
List of Potential Toxic Air Contaminants for
Identification Requirements
a) The Agency will publish at least annually the Agency
document entitled “Potential Toxic Air Contaminants for
Identification Requirements.” This document will be
available to any person who requests a copy in writing
and will be available to permit applicants.
b) After the public participation requirements of Section
232.440 are met, the Agency will add those contaminants
that meet the characteristics of subsections 232.200
(b) or (c) to the Agency document entitled “Potential
Toxic Air Contaminants for Identification
Requirements.”
SUBPART E: LISTING
AND DELISTING
Section 232.500
Listing and Delisting of Toxic Air
Contaminants
a) When the Agency has knowledge that a potential toxic
air contaminant is emitted into the atmosphere in
Illinois, the Agency will propose that contaminant to
the Board as a toxic air contaminant. A copy of the
permanent file for each potential toxic air contaminant
will be submitted to the Board with the proposal.
b) Any person can propose to the Board to list or delist a
toxic air contaminant. Written notification must be
sent to the Agency 90 days prior to submitting a
proposal to the Board.
c) The notification for listing a contaminant as a toxic
air contaminant must include, at a minimum, the
following:
1) the contaminant name and Chemical Abstract Service
Number where applicable;
2) the basis of listing (Toxicity Score or carcinogen
classifications) ;
3) a copy of each study or report justifying the
basis of listing; and
4) the identification of the source emitting the
110—491
14
contaminant.
d) The notification for delisting a toxic air contaminant
must include, at a minimum, the following:
1) the toxic air contaminant name and Chemical
Abstract Service Number where applicable;
2) the basis for delisting; and
3) a copy of each study or report justifying the
basis for delisting.
e) The Agency will propose an update of the list of toxic
air contaminants to the Board no less frequently than
once every 2 years.
Section 232.510
Listing and Delisting of Potential Toxic Air
Contaminants
a) Any person can request the Agency to list or delist a
potential toxic air contaminant identified in the
Agency document entitled “Potential Toxic Air
Contaminants for Identification Requirements.” The
request must include, at a minimum, the following:
1) the potential toxic air contaminant name and
Chemical Abstract Service Number where applicable;
2) the basis for listing or delisting (Toxicity Score
or carcinogen classifications); and
3) a copy of each study or report justifying the
basis for selection.
b) The Agency will provide notice and an opportunity for
public comment according to Section 232.440 for those
requests received by the Agency pursuant to subsection
(a) above.
c) The Agency will update the list of potential toxic air
contaminants as necessary, but no less frequently than
once every year.
Section 232.APPENDIX A: List of Toxic Air Contaminants
Chemical Abstract
Chemical Name
Service Number
1) Acetaldehyde
000075—07—0
2) Acetonitrile
000075—05—8
3) Acrylamide
000079—06—1
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15
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)
27)
28)
29)
30)
31)
32)
33)
34)
35)
36)
37)
38)
39)
40)
41)
42)
43)
44)
45)
46)
47)
48)
49)
50)
51)
52)
53)
54)
Acrylic acid
Acrylonitrile
Aniline
Arsenic
Asbestos (friable)
Benzene
Beryllium oxide
Bipheny1
Boron trifluoride
1, 3-Butadiene
2 —Butoxyethanol
Cadmium
Capro lactam
Carbon disulfide
Carbon tetrachloride
Chloramben
Chlordane
Chlorinated dibenzodioxins
Chlorinated dibenzofurans
Chloroacetic acid
Chloroform
Chromium
Coal tar (pitch) volatiles
Copper
p—Cresidine
4, 4-Diaminodiphenyl ether
Dibutyl phthalate
p—Dichlorobenzene
2,4-Dichlorophenoxyacetic acid (2
1, 3-Dichloropropylene
Diinethyl sulfate
1, 4-Dioxane
Di (2-ethyihexyl) phthalate
Epichlorohydrin
Ethyl acrylate
Ethylene dichioride
Ethylene oxide
Fluorine
Formaldehyde
Hexachlorocyclopentadiene
Hydra z me
Hydrogen cyanide
Lead
Mercury
4,4’ -Nethylenebis(N,N’ -dimethyl)
benzenamine
4, 4 ‘—Methylenedianiline
Methylene chloride
Methylenebis (phenylisocyanate)
Molybdenum trioxide
Nickel
Nitric acid
000079—10—7
000107—13—1
000062—53—3
007440—38—2
001332—21—4
00007 1—43—2
0~01304—56—9
000092—52—4
0 07 63 7—07—2
000106—99—0
000111—76—2
007440—43—9
000 10 5—6 0—2
000075—15—0
000056—23 —5
000133—90—4
000057—74—9
000079—11—8
00 0067—66—3
007440—47—3
065996—93—2
00744 0—50—8
00012 0—7 1—8
000101—80—4
000084—74—2
000106—46—7
4—D) 000094—75—7
00054 2—75—6
000077—78—1
000123—91—1
000117—8 1—7
000106—89—8
000140—88—5
000107—06—2
00 007 5—2 1—8
007782—41—4
000050—00—0
000077—47—4
000302—01—2
000074—90—8
007 439—92—1
007439—97—6
000101—61—1
000101—77—9
0 00 07 5—09—2
000101—68—8
001313—27—5
00744 0—02—0
007 697—37—2
110—493
16
55) 2—Nitropropane
000079—46—9
56) Pentachloronitrobenzene
000082-68—8
57) Peracetic acid
000079—21-0
58) Phenol
000108—95—2
59) Phorate
000298—02—2
60) Phosphorus
007723—14—0
61) Polychlorinated biphenyls (PCBs) 001336—36—3
62) Propylene oxide
000075—56—9
63) Quinolirie
000091—22—5
64) Selenium
007782—49—2
65) Styrene
000100—42—5
66) Sulfuric acid
007664—93—9
67) Terbufos
013071—79—9
68) Tetrachloroethylene
000127—18—4
69) Toluene
000108—88—3
70) Toluene—2
,
4—diisocyanate
000584—84—9
71) Toluene—2, 6—diisocyanate
00009 1—08—7
72) Trichloroethylene
000079-01—6
73) 1,2, 4—Trimethylbenzene
000095—63—6
74) Trifluralin
001582—09—8
75) 2,4, 6—Trinitrotoluene
000118—96—7
76) Vinyl chloride
000075—01—4
77) Vinylidene chloride
000075—35—4
78) Arsenic Compounds
Includes any unique chemical
substance that contains arsenic
as part of that chemical’s
infrastructure.
79) Cadmium Compounds
Includes any unique chemical
substance that contains cadmium
as part of that chemical’s
infrastructure.
80) Chromium Compounds
Includes any unique chemical
substance that contains chromium
as part of that chemical’s
infrastructure.
81) Cobalt Compounds
Includes any unique chemical
substance that contains cobalt
as part of that chemical’s
infrastructure
82) Cyanide Compounds
X (pos) CN (neg) where
X
=
H (pos) or any other
group where a formal
dissociation can be made.
For example, KCN or Ca(CN)2.
83) Lead Compounds
Includes any unique chemical
substance that contains lead
17
as part of that chemical’s
infrastructure. For example,
alkylated lead compounds.
84) Nickel Compounds
Includes any unique chemical
substance that contains nickel
as part of that chemical’s
infrastructure.
Section 232.APPENDIX B: Procedures for Calculating the Lowest
Toxic Dose Score
a) Procedures to be used in selecting chronic toxicity
studies.
1) Chronic toxicity studies in which all of the items
in subsection (a) (1) (A) are identified or measured
with adequate specificity to use the equations in
subsection (b) must be given first preference:
A) Study items to be identified or measured:
i) test species;
ii) contaminant dose;
iii) duration of exposure must be at least 21
days, except for developmental studies
in animals, in which case the duration
of exposure must be at least 10
consecutive days during critical
gestation days;
iv) route of exposure; and
v) effect of exposure.
B) In the event that two or more studies are
available in which the above items are
identified or measured, the study that
results in the highest Chronic Toxicity Score
must be used.
2) Studies that identify or measure all of the items
in subsection (a) (1) (A) except for the contaminant
dose, must be given second preference.
A) For a second preference study, the Lowest
Toxic Dose Score for a given species and a
given route of exposure must be determined
according to the following table:
Route of
Lowest Toxic
Species
Exposure
Dose Score
Human
Inhalation
1
110—495
18
Human
Non-Inhalation
2/3
Non-Human
Inhalation
2/3
Non-Human
Non-Inhalation
1/3
B) In the event that two or more second
preference studies are available, the study
that results in the highest Chronic Toxicity
Score must be used.
3) A contaminant for which there are insufficient
data in the study to identify the elements of
either a first or second preference study, must be
determined to have no data and be assigned a
Chronic Toxicity Score of 0.
b) The following general equation must be used to obtain
the dose in units of milligram per kilogram per day for
the oral, gavage and inhalation routes of exposure:
Dose
=
(I)(C)(TCF)/UF
1) For the routes of exposure listed below, use the
following:
TCF
=
Time Correction Factor of 1, unless the
exposure was intermittent, in which case
the fraction of time~during which
exposure occurred is used (e.g., 5
days/week
=
5/7
=
0.71).
UF Uncertainty Factor of 10, used only when data
are for exposure periods less than 90 days.
In the case of fetotoxicity and
teratogenicity studies, an Uncertainty Factor
of 1 must be used.
2) Where the exposure is oral use the following:
A) Oral Exposure via Food:
I
=
Food Intake in kilogram of food ingested
per kilogram of body weight per day
(kg/kg-d) (refer to Chart 1 for standard
values);
C
=
Contaminant Concentration in food in
units of milligram ~er kilogram (mg/kg);
or
B) Oral Exposure via Water:
I
=
Water Intake in liter of water ingested
per kilogram of body weight per day
110—496
19
(L/kg-d) (refer to Chart 1 for standard
values);
C
=
Contaminant Concentration in water in
units of milligram per liter (mg/L); or
3) Where the exposure is via gavage use the
following:
The product (I x C) in the above equation must be
replaced by Gavage Dose (GD) in units of milligram
of contaminant ingested per kilogram of body
weight per day (mg/kg-d); or
4) Where the exposure is via inhalation use the
following:
I
=
Air intake in cubic meter of air ipaled per
kilogram of body weight per day
(in
/kg-d)
measured as the product of Ventilation Rate
(VR) (refer to Chart 1 for standard values)
and Inhalation retention factor (RF) (assumed
to be 0.5 for this procedure);
C
=
Contaminant Concentration in air in units of
milligram per cubic meter (mg/rn3).
Chart 1 Summary of
Physiological Parameters
Water
Food
Ventilation
Intake
Intake
Rate
Species L/(kg-d) kg/(kg-d) m3/(kg-d)
Mouse
0.25
0.150
1.44
Rat
0.10
0.050
0.66
Guinea Pig 0.075
0.040
0.58
Rabbit
0.065
0.030
0.46
Cat
0.100
0.050
0.46
Dog
0.025
0.025
0.31
Human
0.029
0.025
0.26
Monkey
0.14
0.07
0.32
Section 232.APPENDIX C: Categories A, Bi, and B2 carcinogens of
110—497
20
the reference United States Environmental Protection Agency,
Off ice of Health and Environmental Assessment, Integrated Risk
Information System (IRIS), as of December 31, 1989
Chemical Name
CAS Number
Category
1) Acetaldehyde
000075—07—0 B2
2) Acrylamide
000079—06—1 B2
3) Acrylonitrile
000107—13—1 81
4) Aidrin
000309—00—2 82
5) Aniline
000062—53—3 82
6) Arsenic
007440—38—2 A
7) Azobenzene
000103—33—3 B2
8) Benzene
000071—43—2 A
9) Benzidine
000092—87—5 A
10) Benzo(a)pyrene
000050—32—8 B2
11) Benzyl chloride
000100—44—7 B2
12) Beryllium
007440—41—7 82
13) Bis(2—ethylhexyl) phthalate 000117—81—7 82
14) Bis(chloroethyl) ether
000111—44—4 B2
15) Bis(chloromethyl) ether
000542-88-1 A
16) 1,3—Butadiene
000106—99—0 82
17) Cadmium
007440—43—9 81
18) Carbon Tetrachloride
000056-23—5 B2
19) Chlordane
000057—74—9 B2
20) Chloroform
000067—66—3 B2
21) Chloromethyl Methyl Ether 000107-30-2 A
22) Chromium(VI)
18540—29—9
A
23) Coke Oven Emissions
008007—45—2 A
24) Creosote
008001—58—9 Bl
25) DDD
000072—54—8 B2
26) DDE
000072—55—9 82
27) DDT
000050—29—3 B2
28) l,2—Dichloroethane
000107—06—2 B2
29) l,3—Dichloropropene
000542—75—6 B2
30) Dichlorovos
000062—73—7 B2
31) Dieldrin
000060—57—1 B2
32) Dimethyl Sulfate
000077—78—1 B2
33) 1,4—Dioxane
000123—91—1 132
34) 1,2—Diphenyihydrazine
000122—66—7 B2
35) Epichlorohydrin
000106—89—8 132
36) Ethylene Dibromide
000106-93—4 132
37) Folpet
000133—07—3 B2
38) Formaldehyde
000050-00—0 Bl
39) Furmecyclox
060568—05—0 B2
40) Heptachior
000076—44—8 82
41) Heptachlor Epoxide
001024-57—3 82
42) Hexachlorocyclohexane,
000608-73—1 82
technical
43) alpha-Hexachlorocyclohexane 000319-84-6 82
44) Hexachlorodibenzo-p-dioxin 019408-74-3 B2
45) Hydrazine, Hydrazine Sulfate
B2
110—498
21
(mixture)
Chemical Name
CAS Number
Category
46) Lead and Compounds
(Inorganic)
47) 4,4’—MethyLenebis(N,N’—
dimethyl) benzenamine
48) N-Nitroso—N
-methylethy lamine
49) N-Nitroso-di-n-butylamine
50) N-Nitrosodi-N-propylamine
51) N-Nitrosodjethanolamine
52) N-Nitrosodiethylamine
53) N-Nitrosodimethylamine
54) N—Nitrosodiphenylamine
55) N-Nitrosopyrrolidine
56) Nickel Carbonyl
57) Nickel Refinery Dust
58) Nickel Subsulfide
59) Polychiorinated Biphenyls
60) Toxaphene
IT IS SO ORDERED.
82
000101—61—1 82
010595—95—6
000924—16—3
00062 1—64—7
001116—54—7
000055—18—5
000062—75—9
00 008 6—3 0—6
00093 0—55—2
013463—39—3
007440—02—0
012035—72—2
001336—36—3
0 08 00 1—3 5—2
I, Dorothy M. Gunn, Clerk
Board, hereby certify that the
adopted on the
-=~
~ day
vote of
___________
Dorothy M. G~Unn, Clerk
Illinois Pollution Control Board
B2
B2
B2
B2
B2
82
B2
B2
82
A
A
B2
B2
of the Illinois Pollution Control
above Opinion and Order was
of
~
/. .
,
1990, by a
I
~/\.
~
/
110—499
