Table 1 provides
the complete list of toxic air contaminants and ozone depleters on Form TACS
including TAC Code, TAC group name, CAS#, and the name of each specific substances
classified under each TAC group. The last column “Type of TAC/ODC” identifies
each of the listed components as VOC or PM.
Table 1 lists the family name and the individual species
within the family for the following toxic air contaminants (TACs):
§
Chlorinated dioxins and dibenzofurans (TAC code #7)
§
Fluorocarbons (chlorinated and brominated) (TAC code
#22)
§
PAHs (TAC code #19)
It is important when reporting emissions for these
families of compounds that emissions are not double-counted thus adversely
affecting the facility’s emissions and/or fees. Emissions reported for the overall family and each of the species
within the family are summed for the purpose of calculating total facility
emissions and/or assigning fees and prioritizing facility risks. Therefore, it is important that you either
report emissions by individual species or overall emissions for the toxic
family. It is always preferable to
report emissions by individual species if that information is available. Table 2 considers each toxic family and
several other toxics such as, arsenic (CAS #7440382), asbestos (CAS #1332214),
hexavalent chromium (CAS #18540299), lead (CAS #7439921), and nickel (CAS
#7440020), and provides recommendations for emissions reporting. All TAC emissions must be reported on form
TAC as well as on form TACS. It is
important that the directions provided in Table 2 be read carefully before
calculating TAC emissions.
Table
1: Form TACS Toxic Air Contaminants and Ozone Depleters
|
TAC Code |
Group |
CAS# |
Substance |
Type of TAC/ODC |
|
32 |
Ammonia |
7664417 |
Ammonia |
Only TAC |
|
1 |
Asbestos |
1332214 |
Asbestos |
TAC and PM |
|
2 |
Benzene |
71432 |
Benzene |
TAC and VOC |
|
3 |
Beryllium |
7440417 |
Beryllium |
TAC and PM |
|
4 |
1,3-Butadiene |
106990 |
1,3-Butadiene |
TAC and VOC |
|
5 |
Cadmium |
7440439 |
Cadmium |
TAC and PM |
|
6 |
Carbon
tetrachloride |
56235 |
Carbon
tetrachloride |
TAC and VOC |
|
7 |
Chlorinated
dioxins and dibenzofurans |
1080 |
Dibenzofurans
(Polychlorinated dibenzofurans) {PCDFs} [POM] |
TAC and VOC |
|
1746016 |
2,3,7,8-Tetrachlorodibenzo-p-dioxin
{TCDD} [POM] |
TAC and VOC |
||
|
3268879 |
1,2,3,4,5,6,7,8-Octachlorodibenzo-p-dioxin
[POM] |
TAC and VOC |
||
|
19408743 |
1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin
[POM] |
TAC and VOC |
||
|
35822469 |
1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin
[POM] |
TAC and VOC |
||
|
39001020 |
1,2,3,4,5,6,7,8-Octachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
39227286 |
1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin
[POM] |
TAC and VOC |
||
|
40321764 |
1,2,3,7,8-Pentachlorodibenzo-p-dioxin
[POM] |
TAC and VOC |
||
|
51207319 |
2,3,7,8-Tetrachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
55673897 |
1,2,3,4,7,8,9-Heptachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
57117314 |
2,3,4,7,8-Pentachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
57117416 |
1,2,3,7,8-Pentachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
57117449 |
1,2,3,6,7,8-Hexachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
57653857 |
1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin
[POM] |
TAC and VOC |
||
|
60851345 |
2,3,4,6,7,8-Hexachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
67562394 |
1,2,3,4,6,7,8-Heptachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
70648269 |
1,2,3,4,7,8-Hexachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
72918219 |
1,2,3,7,8,9-Hexachlorodibenzofuran
[POM] |
TAC and VOC |
||
|
8 |
1,4-Dioxane |
123911 |
1,4-Dioxane |
TAC and VOC |
|
9 |
Ethylene
dibromide |
106934 |
Ethylene
dibromide {1,2-Dibromoethane} |
TAC and VOC |
|
10 |
Ethylene
dichloride |
107062 |
Ethylene
dichloride {1,2-Dichloroethane} |
TAC and VOC |
|
11 |
Ethylene
oxide |
75218 |
Ethylene
oxide |
TAC and VOC |
|
12 |
Formaldehyde |
50000 |
Formaldehyde |
TAC and VOC |
|
13 |
Hexavalent
chromium |
18540299 |
Chromium,
hexavalent (and compounds) |
TAC and PM |
|
14 |
Inorganic
arsenic |
7440382 |
Arsenic |
TAC and PM |
|
15 |
Lead |
7439921 |
Lead
compounds (inorganic) |
TAC and PM |
|
16 |
Methylene
chloride |
75092 |
Methylene
chloride {Dichloromethane} |
Only TAC |
|
17 |
Nickel |
7440020 |
Nickel |
TAC and PM |
|
18 |
Perchloroethylene
|
127184 |
Perchloroethylene
{Tetrachloroethene} |
Only TAC |
|
19 |
Polynuclear
aromatic hydrocarbons (PAHs) |
1151 |
PAHs,
total, w/o individ. components reported [PAH, POM] |
TAC and VOC |
|
50328 |
Benzo[a]pyrene
[PAH, POM] |
TAC and VOC |
||
|
53703 |
Dibenz[a,h]anthracene
[PAH, POM] |
TAC and VOC |
||
|
56553 |
Benz[a]anthracene
[PAH, POM] |
TAC and VOC |
||
|
83329 |
Acenaphthene
[PAH, POM] |
TAC and VOC |
||
|
85018 |
Phenanthrene
[PAH, POM] |
TAC and VOC |
||
|
86737 |
Fluorene
[PAH, POM] |
TAC and VOC |
||
|
91203 |
Naphthalene
[PAH, POM] |
TAC and VOC |
||
|
91576 |
2-Methyl
naphthalene [PAH, POM] |
TAC and VOC |
||
|
120127 |
Anthracene
[PAH, POM] |
TAC and VOC |
||
|
129000 |
Pyrene
[PAH, POM] |
TAC and VOC |
||
|
189559 |
Dibenzo[a,i]pyrene
[PAH, POM] |
TAC and VOC |
||
|
189640 |
Dibenzo[a,h]pyrene
[PAH, POM] |
TAC and VOC |
||
|
191242 |
Benzo[g,h,i]perylene
[PAH, POM] |
TAC and VOC |
||
|
191300 |
Dibenzo[a,l]pyrene
[PAH, POM] |
TAC and VOC |
||
|
192654 |
Dibenzo[a,e]pyrene
[PAH, POM] |
TAC and VOC |
||
|
192972 |
Benzo[e]pyrene
[PAH, POM] |
TAC and VOC |
||
|
193395 |
Indeno[1,2,3-cd]pyrene
[PAH, POM] |
TAC and VOC |
||
|
198550 |
Perylene
[PAH, POM] |
TAC and VOC |
||
|
205823 |
Benzo[j]fluoranthene
[PAH, POM] |
TAC and VOC |
||
|
205992 |
Benzo[b]fluoranthene
[PAH, POM] |
TAC and VOC |
||
|
206440 |
Fluoranthene
[PAH, POM] |
TAC and VOC |
||
|
207089 |
Benzo[k]fluoranthene
[PAH, POM] |
TAC and VOC |
||
|
208968 |
Acenaphthylene
[PAH, POM] |
TAC and VOC |
||
|
218019 |
Chrysene
[PAH, POM] |
TAC and VOC |
||
|
20 |
Trichloroethylene |
79016 |
Trichloroethylene |
TAC and VOC |
|
21 |
Vinyl
chloride |
75014 |
Vinyl
chloride |
TAC and VOC |
|
22 |
Chlorofluorocarbons
(CFCs) |
1104 |
Fluorocarbons
(chlorinated) |
Only ODC |
|
75434 |
Dichlorofluoromethane
{Freon 12} |
Only ODC |
||
|
75694 |
Trichlorofluoromethane
{Freon 11} |
Only ODC |
||
|
76131 |
Trichlorotrifluoroethane
{Freon -113} |
Only ODC |
||
|
23 |
1,1,1-trichloroethane
|
71556 |
Methyl
chloroform {1,1,1-Trichloroethane} |
Only ODC |
Table 2. Special Instructions
for Reporting Select Toxic Air Contaminants
|
TAC |
Substance |
Reporting recommendations |
|
14 |
Arsenic and compounds |
Be sure to consider the inorganic arsenic weight
fraction in inorganic arsenic containing materials such as arsine when
calculating the inorganic arsenic emissions.
The arsenic weight fraction for arsine (CAS# 7784421) is 0.9612. |
|
1 |
Asbestos |
Be sure to consider the asbestos weight fraction in
mineral fibers such as erionite, talc, etc. when calculating the asbestos
emissions. |
|
13 |
Hexavalent chromium and compounds |
Be sure to consider the hexavalent chromium weight
fraction in coating materials such as barium chromate, calcium chromate, lead
chromate, sodium chromate, and strontium chromate, and chromium trioxide (as
chromic acid mist) when calculating the hexavalent chromium emissions. The hexavalent chromium weight fractions
for these compounds are as follows: barium chromate (CAS#
10294403) – 0.2053; calcium chromate (CAS#
13765190 – 0.3332; lead chromate (CAS#
7758976) – 0.1609;
sodium dichromate (CAS#
10588019) – 0.397; strontium dichromate (CAS#
7789062) – 0.2554; chromium trioxide (as chromic acid mist) (CAS# 1333820) – 0.52; zinc chromate (CAS # 13530659) – 0.2867. |
|
7 |
Chlorinated dioxins and dibenzofurans |
Report emissions as either a family total or by
individual species on form TAC. Do
not double count the same emissions.
Emissions from individual species with the same TAC code are added
together on form TACS or TACS-O to calculate the family total emissions. |
|
22 |
Fluorocarbons (chlorinated and brominated) |
Report emissions as either a family total or by
individual species on form TAC. Do
not double count the same emissions.
Emissions from individual species with the same TAC code are added
together on form TACS or TACS-O to calculate the family total emissions. |
|
15 |
Lead compounds (inorganic) |
Be sure to consider the lead weight fraction in lead
containing materials such as lead acetate, lead phosphate, lead subacetate,
and lead chromate, when calculating the lead emissions. The lead weight fractions for these
materials are as follows: lead oxide (CAS# 1314-41-6) –0.9066; lead acetate (CAS#
301042) – 0.637; lead phosphate (CAS# 7446277)
– 0.7659; lead subacetate (CAS#
1335326) – 0.7696; and lead chromate(CAS#
7758976) – 0.6411. |
|
17 |
Nickel |
Be sure to consider the nickel weight fraction in
nickel containing materials such as nickel acetate, nickel carbonate, nickel
carbonyl, nickel hydroxide, nickelocene, nickel oxide, nickel subsulfide and
refinery dust when calculating the nickel emissions. The nickel weight fractions for these
materials are as follows: nickel acetate (CAS# 373024) – 0.3321; nickel carbonate (CAS# 3333393) – 0.4945; nickel carbonyl (CAS# 13463393) – 0.3438; nickel hydroxide (CAS# 12054487) – 0.6332; nickelocene (CAS# 1271289) – 0.4937; nickel oxide (CAS# 131991) – 0.7859; nickel subsulfide (CAS# 12035722) – 0.2443 |
|
19 |
PAHs |
Report emissions as either a family total or by
individual species on form TAC. Do
not double count the same emissions.
Emissions from individual species with the same TAC code are added together
on form TACS or TACS-O to calculate the family total emissions. |