| Code Figure |
Meaning |
Chemical Formula |
0
|
Ozone |
O3 |
1
|
Water Vapour |
H2O |
2
|
Methane |
CH4 |
3
|
Carbon Dioxide |
CO2 |
4
|
Carbon Monoxide |
CO |
5
|
Nitrogen Dioxide |
NO2 |
6
|
Nitrous Oxide |
N2O |
7
|
Formaldehyde |
HCHO |
8
|
Sulphur Dioxide |
SO2 |
9
|
Ammonia |
NH3 |
10
|
Ammonium |
NH4+ |
11
|
Nitrogen Monoxide |
NO |
12
|
Atomic Oxygen |
O |
13
|
Nitrate Radical |
NO3 |
14
|
Hydroperoxyl Radical |
HO2 |
15
|
Dinitrogen Pentoxide |
H2O5 |
16
|
Nitrous Acid |
HONO |
17
|
Nitric Acid |
HNO3 |
18
|
Peroxynitric Acid |
HO2NO2 |
19
|
Hydrogen Peroxide |
H2O2 |
20
|
Molecular Hydrogen |
H |
21
|
Atomic Nitrogen |
N |
22
|
Sulphate
|
SO42- |
23
|
Radon |
Rn |
24
|
Elemental Mercury |
Hg(O) |
25
|
Divalent Mercury |
Hg2+ |
26
|
Atomic Chlorine |
Cl |
27
|
Chlorine Monoxide |
ClO |
28
|
Dichlorine Peroxide |
Cl2O2 |
29
|
Hypochlorous Acid |
HClO |
30
|
Chlorine Nitrate |
ClONO2 |
31
|
Chlorine Dioxide |
ClO2 |
32
|
Atomic Bromide |
Br |
33
|
Bromine Monoxide |
BrO |
34
|
Bromine Chloride |
BrCl |
35
|
Hydrogen Bromide |
HBr |
36
|
Hypobromous Acid |
HBrO |
37
|
Bromine Nitrate |
BrONO2 |
38
|
Oxygen |
O2 |
39-9999
|
Reserved
|
|
10000
|
Hydroxyl Radical |
OH |
10001
|
Methyl Peroxy Radical |
CH3O2 |
10002
|
Methyl Hydroperoxide |
CH3O2H |
10003
|
Reserved
|
|
10004
|
Methanol |
CH3OH |
10005
|
Formic Acid |
CH3OOH |
10006
|
Hydrogen Cyanide |
HCN |
10007
|
Aceto Nitrile |
CH3CN |
10008
|
Ethane |
C2H6 |
10009
|
Ethene (= Ethylene) |
C2H4 |
10010
|
Ethyne (= Acetylene) |
C2H2 |
10011
|
Ethanol |
C2H5OH |
10012
|
Acetic Acid |
C2H5OOH |
10013
|
Peroxyacetyl Nitrate |
CH3C(O)OONO2 |
10014
|
Propane |
C3H8 |
10015
|
Propene |
C3H6 |
10016
|
Butanes |
C4H10 |
10017
|
Isoprene |
C5H10 |
10018
|
Alpha Pinene |
C10H16 |
10019
|
Beta Pinene |
C10H16 |
10020
|
Limonene |
C10H16 |
10021
|
Benzene |
C6H6 |
10022
|
Toluene |
C7H8 |
10023
|
Xylene |
C8H10 |
10024-10499
|
Reserved |
|
10500
|
Dimethyl Sulphide |
CH3SCH3 |
10501-20000
|
Reserved |
|
20001
|
Hydrogen Chloride |
HCL |
20002
|
CFC-11 |
|
20003
|
CFC-12 |
|
20004
|
CFC-113 |
|
20005
|
CFC-113a |
|
20006
|
CFC-114 |
|
20007
|
CFC-115 |
|
20008
|
HCFC-22 |
|
20009
|
HCFC-141b |
|
20010
|
HCFC-142b |
|
20011
|
Halon-1202 |
|
20012
|
Halon-1211 |
|
20013
|
Halon-1301 |
|
20014
|
Halon-2402 |
|
20015
|
Methyl Chloride (HCC-40) |
|
20016
|
Carbon Tetrachloride (HCC-10) |
|
20017
|
HCC-140a |
CH3CCl3
|
20018
|
Methyl Bromide (HBC-40B1) |
|
20019
|
Hexachlorocyclohexane (HCH) |
|
20020
|
Alpha Hexachlorocyclohexane |
|
20021
|
Hexachlorobiphenyl (PCB-153) |
|
20022-29999
|
Reserved |
|
30000
|
Radioactive Pollutant (Tracer, defined by originating centre) |
|
30001-50000
|
Reserved |
|
60000
|
HOx Radical (OH+HO2) |
|
60001
|
Total Inorganic and Organic Peroxy Radicals (HO2+RO2) |
RO2
|
60002
|
Passive Ozone |
|
60003
|
NOx Expressed As Nitrogen |
NOx
|
60004
|
All Nitrogen Oxides (NOy) Expressed As Nitrogen |
NOy
|
60005
|
Total Inorganic Chlorine |
Clx
|
60006
|
Total Inorganic Bromine |
Brx
|
60007
|
Total Inorganic Chlorine Except HCl, ClONO2: ClOx |
|
60008
|
Total Inorganic Bromine Except Hbr, BrONO2:BrOx |
|
60009
|
Lumped Alkanes |
|
60010
|
Lumped Alkenes |
|
60011
|
Lumped Aromatic Coumpounds |
|
60012
|
Lumped Terpenes |
|
60013
|
Non-Methane Volatile Organic Compounds Expressed as Carbon |
NMVOC
|
60014
|
Anthropogenic Non-Methane Volatile Organic Compounds Expressed as Carbon |
aNMVOC
|
60015
|
Biogenic Non-Methane Volatile Organic Compounds Expressed as Carbon |
bNMVOC
|
60016
|
Lumped Oxygenated Hydrocarbons |
OVOC
|
60017-61999
|
Reserved |
|
62000
|
Total Aerosol |
|
62001
|
Dust Dry |
|
62002
|
water In Ambient |
|
62003
|
Ammonium Dry |
|
62004
|
Nitrate Dry |
|
62005
|
Nitric Acid Trihydrate |
|
62006
|
Sulphate Dry |
|
62007
|
Mercury Dry |
|
62008
|
Sea Salt Dry |
|
62009
|
Black Carbon Dry |
|
62010
|
Particulate Organic Matter Dry |
|
62011
|
Primary Particulate Organic Matter Dry |
|
62012
|
Secondary Particulate Organic Matter Dry |
|
62013
|
Black carbon hydrophilic dry |
|
62014
|
Black carbon hydrophobic dry |
|
62015
|
Particulate organic matter hydrophilic dry |
|
62016
|
Particulate organic matter hydrophobic dry |
|
62017
|
Nitrate hydrophilic dry |
|
62018
|
Nitrate hydrophobic dry |
|
| 62019 |
Reserved |
|
| 62020 |
Smoke - high absorption |
|
| 62021 |
Smoke - low absorption |
|
| 62022 |
Aerosol - high absorption |
|
| 62023 |
Aerosol - low absorption |
|
| 62024 |
Reserved |
|
| 62025 |
Volcanic ash |
|
| 62036 |
Brown Carbon Dry |
|
62037-65534
|
Reserved |
|
65535
|
Missing
|
|