1 0 Ozone O3 Operational 2 1 Water vapour H2O Operational 3 2 Methane CH4 Operational 4 3 Carbon dioxide CO2 Operational 5 4 Carbon monoxide CO Operational 6 5 Nitrogen dioxide NO2 Operational 7 6 Nitrous oxide N2O Operational 8 7 Formaldehyde HCHO Operational 9 8 Sulphur dioxide SO2 Operational 10 9 Ammonia NH3 Operational 11 10 Ammonium NH4+ Operational 12 11 Nitrogen monoxide NO Operational 13 12 Atomic oxygen O Operational 14 13 Nitrate radical NO3 Operational 15 14 Hydroperoxyl radical HO2 Operational 16 15 Dinitrogen pentoxide N2O5 Operational 17 16 Nitrous acid HONO Operational 18 17 Nitric acid HNO3 Operational 19 18 Peroxynitric acid HO2NO2 Operational 20 19 Hydrogen peroxide H2O2 Operational 21 20 Molecular hydrogen H2 Operational 22 21 Atomic nitrogen N Operational 23 22 Sulphate SO42- Operational 24 23 Radon Rn Operational 25 24 Elemental mercury Hg(0) Operational 26 25 Divalent mercury Hg2+ Operational 27 26 Atomic chlorine Cl Operational 28 27 Chlorine monoxide ClO Operational 29 28 Dichlorine peroxide Cl2O2 Operational 30 29 Hypochlorous acid HClO Operational 31 30 Chlorine nitrate ClONO2 Operational 32 31 Chlorine dioxide ClO2 Operational 33 32 Atomic bromine Br Operational 34 33 Bromine monoxide BrO Operational 35 34 Bromine chloride BrCl Operational 36 35 Hydrogen bromide HBr Operational 37 36 Hypobromous acid HBrO Operational 38 37 Bromine nitrate BrONO2 Operational 39 38 Oxygen O2 Operational 40 39-9999 Reserved Operational 41 39 Nitryl chloride NO2Cl Operational 42 40 Sulphuric acid H2SO4 Operational 43 41 Hydrogen sulphide H2S Operational 44 42 Sulphur trioxide SO3 Operational 45 43 Bromine Br2 Operational 46 44 Hydrofluoric acid HF Operational 47 45 Sulphur hexafluoride SF6 Operational 48 46 Chlorine Cl2 Operational 49 47-9999 Reserved Operational 50 10000 Hydroxyl radical OH Operational 51 10001 Methyl peroxy radical CH3O2 Operational 52 10002 Methyl hydroperoxide CH3O2H Operational 53 10004 Methanol CH3OH Operational 54 10005 Formic acid CH3OOH Operational 55 10006 Hydrogen cyanide HCN Operational 56 10007 Aceto nitrile CH3CN Operational 57 10008 Ethane C2H6 Operational 58 10009 Ethene (= Ethylene) C2H4 Operational 59 10010 Ethyne (= Acetylene) C2H2 Operational 60 10011 Ethanol C2H5OH Operational 61 10012 Acetic acid C2H5OOH Operational 62 10013 Peroxyacetyl nitrate CH3C(O)OONO2 Operational 63 10014 Propane C3H8 Operational 64 10015 Propene C3H6 Operational 65 10016 Butanes C4H10 Operational 66 10017 Isoprene C5H10 Operational 67 10018 Alpha pinene C10H16 Operational 68 10019 Beta pinene C10H16 Operational 69 10020 Limonene C10H16 Operational 70 10021 Benzene C6H6 Operational 71 10022 Toluene C7H8 Operational 72 10023 Xylene C8H10 Operational 73 10024-10499 Reserved for other simple organic molecules (e.g. higher aldehydes, alcohols, peroxides, ...) Operational 74 10024 Methanesulphonic acid CH3SO3H Operational 75 10025 Methylglyoxal (2-oxopropanal) CH3C(O)CHO Operational 76 10026 Peroxyacetyl radical CH3C(O)OO• Operational 77 10027 Methacrylic acid (2-methylprop-2-enoic acid) CH2C(CH3)COOH Operational 78 10028 Methacrolein (2-methylprop-2-enal) CH2C(CH3)CHO Operational 79 10029 Acetone (propan-2-one) CH3C(O)CH3 Operational 80 10030 Ethyl dioxidanyl radical CH3CH2OO• Operational 81 10031 Butadiene (buta-1,3-diene) (CH2CH)2 Operational 82 10032 Acetaldehyde (ethanal) CH3CHO Operational 83 10033 Glycolaldehyde (hydroxyethanal) HOCH2CHO Operational 84 10034 Cresol (methylphenol), all isomers CH3C6H4OH Operational 85 10035 Peracetic acid (ethaneperoxoic acid) CH3C(O)OOH Operational 86 10036 2-hydroxyethyl oxidanyl radical HOCH2CH2O• Operational 87 10037 2-hydroxyethyl dioxidanyl radical HOCH2CH2OO• Operational 88 10038 Glyoxal (oxaldehyde) OCHCHO Operational 89 10039 Isopropyl dioxidanyl radical (CH3)2CHOO• Operational 90 10040 Isopropyl hydroperoxide (2-hydroperoxypropane) (CH3)2CHOOH Operational 91 10041 Hydroxyacetone (1-hydroxypropan-2-one) CH3C(O)CH2OH Operational 92 10042 Peroxyacetic acid (ethaneperoxoic acid) CH3C(O)OOH Operational 93 10043 Methyl vinyl ketone (but-3-en-2-one) CH3C(O)CHCH2 Operational 94 10044 Phenoxy radical C6H5O• Operational 95 10045 Methyl radical CH3• Operational 96 10046 Carbonyl sulphide (carbon oxide sulphide) OCS Operational 97 10047 Dibromomethane CH2Br2 Operational 98 10048 Methoxy radical CH3O• Operational 99 10049 Tribromomethane CHBr3 Operational 100 10050 Formyl radical (oxomethyl radical) HOC• Operational 101 10051 Hydroxymethyl dioxidanyl radical HOCH2OO• Operational 102 10052 Ethyl hydroperoxide CH3CH2OOH Operational 103 10053 3-hydroxypropyl dioxidanyl radical HOCH2CH2CH2OO• Operational 104 10054 3-hydroxypropyl hydroperoxide HOCH2CH2CH2OOH Operational 105 10055-10499 Reserved for other simple organic molecules (e.g. higher aldehydes, alcohols, peroxides, ...) Operational 106 10500 Dimethyl sulphide CH3SCH3 (DMS) Operational 107 10501-20000 Reserved Operational 108 10501 DMSO (dimethyl sulfoxide) (CH3)2SO Operational 109 10502-20000 Reserved Operational 110 20001 Hydrogen chloride Operational 111 20002 CFC-11 Operational 112 20003 CFC-12 Operational 113 20004 CFC-113 Operational 114 20005 CFC-113a Operational 115 20006 CFC-114 Operational 116 20007 CFC-115 Operational 117 20008 HCFC-22 Operational 118 20009 HCFC-141b Operational 119 20010 HCFC-142b Operational 120 20011 Halon-1202 Operational 121 20012 Halon-1211 Operational 122 20013 Halon-1301 Operational 123 20014 Halon-2402 Operational 124 20015 Methyl chloride (HCC-40) Operational 125 20016 Carbon tetrachloride (HCC-10) Operational 126 20017 HCC-140a CH3CCl3 Operational 127 20018 Methyl bromide (HBC-40B1) Operational 128 20019 Hexachlorocyclohexane (HCH) Operational 129 20020 Alpha hexachlorocyclohexane Operational 130 20021 Hexachlorobiphenyl (PCB-153) Operational 131 20022-29999 Reserved Operational 132 20022 HCFC 141a (1,1-dichloro-2-fluoro-ethane) CH3CClF2 Operational 133 20023-29999 Reserved Operational 134 30000 Radioactive pollutant (tracer, defined by originating centre) Operational 135 30001 - 30009 Reserved Operational 136 30010 Hydrogen H-3 Operational 137 30011 Hydrogen organic bounded H-3o Operational 138 30012 Hydrogen inorganic H-3a Operational 139 30013 Beryllium 7 Be-7 Operational 140 30014 Beryllium 10 Be-10 Operational 141 30015 Carbon 14 C-14 Operational 142 30016 Carbon 14 CO2 C-14CO2 Operational 143 30017 Carbon 14 other gases C-14og Operational 144 30018 Nitrogen 13 N-13 Operational 145 30019 Nitrogen 16 N-16 Operational 146 30020 Fluorine 18 F-18 Operational 147 30021 Sodium 22 Na-22 Operational 148 30022 Phosphate 32 P-32 Operational 149 30023 Phosphate 33 P-33 Operational 150 30024 Sulphur 35 S-35 Operational 151 30025 Chlorine 36 Cl-36 Operational 152 30026 Potassium 40 K-40 Operational 153 30027 Argon 41 Ar-41 Operational 154 30028 Calcium 41 Ca-41 Operational 155 30029 Calcium 45 Ca-45 Operational 156 30030 Titanium 44 Ti-44 Operational 157 30031 Scandium 46 Sc-46 Operational 158 30032 Vanadium 48 V-48 Operational 159 30033 Vanadium 49 V-49 Operational 160 30034 Chrome 51 Cr-51 Operational 161 30035 Manganese 52 Mn-52 Operational 162 30036 Manganese 54 Mn-54 Operational 163 30037 Iron 55 Fe-55 Operational 164 30038 Iron 59 Fe-59 Operational 165 30039 Cobalt 56 Co-56 Operational 166 30040 Cobalt 57 Co-57 Operational 167 30041 Cobalt 58 Co-58 Operational 168 30042 Cobalt 60 Co-60 Operational 169 30043 Nickel 59 Ni-59 Operational 170 30044 Nickel 63 Ni-63 Operational 171 30045 Zinc 65 Zn-65 Operational 172 30046 Gallium 67 Ga-67 Operational 173 30047 Gallium 68 Ga-68 Operational 174 30048 Germanium 68 Ge-68 Operational 175 30049 Germanium 69 Ge-69 Operational 176 30050 Arsenic 73 As-73 Operational 177 30051 Selenium 75 Se-75 Operational 178 30052 Selenium 79 Se-79 Operational 179 30053 Rubidium 81 Rb-81 Operational 180 30054 Rubidium 83 Rb-83 Operational 181 30055 Rubidium 84 Rb-84 Operational 182 30056 Rubidium 86 Rb-86 Operational 183 30057 Rubidium 87 Rb-87 Operational 184 30058 Rubidium 88 Rb-88 Operational 185 30059 Krypton 85 Kr-85 Operational 186 30060 Krypton 85 metastable Kr-85m Operational 187 30061 Krypton 87 Kr-87 Operational 188 30062 Krypton 88 Kr-88 Operational 189 30063 Krypton 89 Kr-89 Operational 190 30064 Strontium 85 Sr-85 Operational 191 30065 Strontium 89 Sr-89 Operational 192 30066 Strontium 89/90 Sr-8990 Operational 193 30067 Strontium 90 Sr-90 Operational 194 30068 Strontium 91 Sr-91 Operational 195 30069 Strontium 92 Sr-92 Operational 196 30070 Yttrium 87 Y-87 Operational 197 30071 Yttrium 88 Y-88 Operational 198 30072 Yttrium 90 Y-90 Operational 199 30073 Yttrium 91 Y-91 Operational 200 30074 Yttrium 91 metastable Y-91m Operational 201 30075 Yttrium 92 Y-92 Operational 202 30076 Yttrium 93 Y-93 Operational 203 30077 Zirconium 89 Zr-89 Operational 204 30078 Zirconium 93 Zr-93 Operational 205 30079 Zirconium 95 Zr-95 Operational 206 30080 Zirconium 97 Zr-97 Operational 207 30081 Niobium 93 metastable Nb-93m Operational 208 30082 Niobium 94 Nb-94 Operational 209 30083 Niobium 95 Nb-95 Operational 210 30084 Niobium 95 metastable Nb-95m Operational 211 30085 Niobium 97 Nb-97 Operational 212 30086 Niobium 97 metastable Nb-97m Operational 213 30087 Molybdenum 93 Mo-93 Operational 214 30088 Molybdenum 99 Mo-99 Operational 215 30089 Technetium 95 metastable Tc-95m Operational 216 30090 Technetium 96 Tc-96 Operational 217 30091 Technetium 99 Tc-99 Operational 218 30092 Technetium 99 metastable Tc-99m Operational 219 30093 Rhodium 99 Rh-99 Operational 220 30094 Rhodium 101 Rh-101 Operational 221 30095 Rhodium 102 metastable Rh-102m Operational 222 30096 Rhodium 103 metastable Rh-103m Operational 223 30097 Rhodium 105 Rh-105 Operational 224 30098 Rhodium 106 Rh-106 Operational 225 30099 Palladium 100 Pd-100 Operational 226 30100 Palladium 103 Pd-103 Operational 227 30101 Palladium 107 Pd-107 Operational 228 30102 Ruthenium 103 Ru-103 Operational 229 30103 Ruthenium 105 Ru-105 Operational 230 30104 Ruthenium 106 Ru-106 Operational 231 30105 Silver 108 metastable Ag-108m Operational 232 30106 Silver 110 metastable Ag-110m Operational 233 30107 Cadmium 109 Cd-109 Operational 234 30108 Cadmium 113 metastable Cd-113m Operational 235 30109 Cadmium 115 metastable Cd-115m Operational 236 30110 Indium 114 metastable In-114m Operational 237 30111 Tin 113 Sn-113 Operational 238 30112 Tin 119 metastable Sn-119m Operational 239 30113 Tin 121 metastable Sn-121m Operational 240 30114 Tin 122 Sn-122 Operational 241 30115 Tin 123 Sn-123 Operational 242 30116 Tin 126 Sn-126 Operational 243 30117 Antimony 124 Sb-124 Operational 244 30118 Antimony 125 Sb-125 Operational 245 30119 Antimony 126 Sb-126 Operational 246 30120 Antimony 127 Sb-127 Operational 247 30121 Antimony 129 Sb-129 Operational 248 30122 Tellurium 123 metastable Te-123m Operational 249 30123 Tellurium 125 metastable Te-125m Operational 250 30124 Tellurium 127 Te-127 Operational 251 30125 Tellurium 127 metastable Te-127m Operational 252 30126 Tellurium 129 Te-129 Operational 253 30127 Tellurium 129 metastable Te-129m Operational 254 30128 Tellurium 131 metastable Te-131m Operational 255 30129 Tellurium 132 Te-132 Operational 256 30130 Iodine 123 I-123 Operational 257 30131 Iodine 124 I-124 Operational 258 30132 Iodine 125 I-125 Operational 259 30133 Iodine 126 I-126 Operational 260 30134 Iodine 129 I-129 Operational 261 30135 Iodine 129 elementary gaseous I-129g Operational 262 30136 Iodine 129 organic bounded I-129o Operational 263 30137 Iodine 131 I-131 Operational 264 30138 Iodine 131 elementary gaseous I-131g Operational 265 30139 Iodine 131 organic bounded I-131o Operational 266 30140 Iodine 131 gaseous elementary and organic bounded I-131go Operational 267 30141 Iodine 131 aerosol I-131a Operational 268 30142 Iodine 132 I-132 Operational 269 30143 Iodine 132 elementary gaseous I-132g Operational 270 30144 Iodine 132 organic bounded I-132o Operational 271 30145 Iodine 132 gaseous elementary and organic bounded I-132go Operational 272 30146 Iodine 132 aerosol I-132a Operational 273 30147 Iodine 133 I-133 Operational 274 30148 Iodine 133 elementary gaseous I-133g Operational 275 30149 Iodine 133 organic bounded I-133o Operational 276 30150 Iodine 133 gaseous elementary and organic bounded I-133go Operational 277 30151 Iodine 133 aerosol I-133a Operational 278 30152 Iodine 134 I-134 Operational 279 30153 Iodine 134 elementary gaseous I-134g Operational 280 30154 Iodine 134 organic bounded I-134o Operational 281 30155 Iodine 135 I-135 Operational 282 30156 Iodine 135 elementary gaseous I-135g Operational 283 30157 Iodine 135 organic bounded I-135o Operational 284 30158 Iodine 135 gaseous elementary and organic bounded I-135go Operational 285 30159 Iodine 135 aerosol I-135a Operational 286 30160 Xenon 131 metastable Xe-131m Operational 287 30161 Xenon 133 Xe-133 Operational 288 30162 Xenon 133 metastable Xe-133m Operational 289 30163 Xenon 135 Xe-135 Operational 290 30164 Xenon 135 metastable Xe-135m Operational 291 30165 Xenon 137 Xe-137 Operational 292 30166 Xenon 138 Xe-138 Operational 293 30167 Xenon sum of all Xenon isotopes Xe-sum Operational 294 30168 Caesium 131 Cs-131 Operational 295 30169 Caesium 134 Cs-134 Operational 296 30170 Caesium 135 Cs-135 Operational 297 30171 Caesium 136 Cs-136 Operational 298 30172 Caesium 137 Cs-137 Operational 299 30173 Barium 133 Ba-133 Operational 300 30174 Barium 137 metastable Ba-137m Operational 301 30175 Barium 140 Ba-140 Operational 302 30176 Cerium 139 Ce-139 Operational 303 30177 Cerium 141 Ce-141 Operational 304 30178 Cerium 143 Ce-143 Operational 305 30179 Cerium 144 Ce-144 Operational 306 30180 Lanthanum 140 La-140 Operational 307 30181 Lanthanum 141 La-141 Operational 308 30182 Praseodymium 143 Pr-143 Operational 309 30183 Praseodymium 144 Pr-144 Operational 310 30184 Praseodymium 144 metastable Pr-144m Operational 311 30185 Samarium 145 Sm-145 Operational 312 30186 Samarium 147 Sm-147 Operational 313 30187 Samarium 151 Sm-151 Operational 314 30188 Neodymium 147 Nd-147 Operational 315 30189 Promethium 146 Pm-146 Operational 316 30190 Promethium 147 Pm-147 Operational 317 30191 Promethium 151 Pm-151 Operational 318 30192 Europium 152 Eu-152 Operational 319 30193 Europium 154 Eu-154 Operational 320 30194 Europium 155 Eu-155 Operational 321 30195 Gadolinium 153 Gd-153 Operational 322 30196 Terbium 160 Tb-160 Operational 323 30197 Holmium 166 metastable Ho-166m Operational 324 30198 Thulium 170 Tm-170 Operational 325 30199 Ytterbium 169 Yb-169 Operational 326 30200 Hafnium 175 Hf-175 Operational 327 30201 Hafnium 181 Hf-181 Operational 328 30202 Tantalum 179 Ta-179 Operational 329 30203 Tantalum 182 Ta-182 Operational 330 30204 Rhenium 184 Re-184 Operational 331 30205 Iridium 192 Ir-192 Operational 332 30206 Mercury 203 Hg-203 Operational 333 30207 Thallium 204 Tl-204 Operational 334 30208 Thallium 207 Tl-207 Operational 335 30209 Thallium 208 Tl-208 Operational 336 30210 Thallium 209 Tl-209 Operational 337 30211 Bismuth 205 Bi-205 Operational 338 30212 Bismuth 207 Bi-207 Operational 339 30213 Bismuth 210 Bi-210 Operational 340 30214 Bismuth 211 Bi-211 Operational 341 30215 Bismuth 212 Bi-212 Operational 342 30216 Bismuth 213 Bi-213 Operational 343 30217 Bismuth 214 Bi-214 Operational 344 30218 Polonium 208 Po-208 Operational 345 30219 Polonium 210 Po-210 Operational 346 30220 Polonium 212 Po-212 Operational 347 30221 Polonium 213 Po-213 Operational 348 30222 Polonium 214 Po-214 Operational 349 30223 Polonium 215 Po-215 Operational 350 30224 Polonium 216 Po-216 Operational 351 30225 Polonium 218 Po-218 Operational 352 30226 Lead 209 Pb-209 Operational 353 30227 Lead 210 Pb-210 Operational 354 30228 Lead 211 Pb-211 Operational 355 30229 Lead 212 Pb-212 Operational 356 30230 Lead 214 Pb-214 Operational 357 30231 Astatine 217 At-217 Operational 358 30232 Radon 219 Rn-219 Operational 359 30233 Radon 220 Rn-220 Operational 360 30234 Radon 222 Rn-222 Operational 361 30235 Francium 221 Fr-221 Operational 362 30236 Francium 223 Fr-223 Operational 363 30237 Radium 223 Ra-223 Operational 364 30238 Radium 224 Ra-224 Operational 365 30239 Radium 225 Ra-225 Operational 366 30240 Radium 226 Ra-226 Operational 367 30241 Radium 228 Ra-228 Operational 368 30242 Actinium 225 Ac-225 Operational 369 30243 Actinium 227 Ac-227 Operational 370 30244 Actinium 228 Ac-228 Operational 371 30245 Thorium 227 Th-227 Operational 372 30246 Thorium 228 Th-228 Operational 373 30247 Thorium 229 Th-229 Operational 374 30248 Thorium 230 Th-230 Operational 375 30249 Thorium 231 Th-231 Operational 376 30250 Thorium 232 Th-232 Operational 377 30251 Thorium 234 Th-234 Operational 378 30252 Protactinium 231 Pa-231 Operational 379 30253 Protactinium 233 Pa-233 Operational 380 30254 Protactinium 234 metastable Pa-234m Operational 381 30255 Uranium 232 U-232 Operational 382 30256 Uranium 233 U-233 Operational 383 30257 Uranium 234 U-234 Operational 384 30258 Uranium 235 U-235 Operational 385 30259 Uranium 236 U-236 Operational 386 30260 Uranium 237 U-237 Operational 387 30261 Uranium 238 U-238 Operational 388 30262 Plutonium 236 Pu-236 Operational 389 30263 Plutonium 238 Pu-238 Operational 390 30264 Plutonium 239 Pu-239 Operational 391 30265 Plutonium 240 Pu-240 Operational 392 30266 Plutonium 241 Pu-241 Operational 393 30267 Plutonium 242 Pu-242 Operational 394 30268 Plutonium 244 Pu-244 Operational 395 30269 Neptunium 237 Np-237 Operational 396 30270 Neptunium 238 Np-238 Operational 397 30271 Neptunium 239 Np-239 Operational 398 30272 Americium 241 Am-241 Operational 399 30273 Americium 242 Am-242 Operational 400 30274 Americium 242 metastable Am-242m Operational 401 30275 Americium 243 Am-243 Operational 402 30276 Curium 242 Cm-242 Operational 403 30277 Curium 243 Cm-243 Operational 404 30278 Curium 244 Cm-244 Operational 405 30279 Curium 245 Cm-245 Operational 406 30280 Curium 246 Cm-246 Operational 407 30281 Curium 247 Cm-247 Operational 408 30282 Curium 248 Cm-248 Operational 409 30283 Curium 243/244 Cm-243244 Operational 410 30284 Plutonium 238/Americium 241 Pu-238Am-241 Operational 411 30285 Plutonium 239/240 Pu-239240 Operational 412 30286 Berkelium 249 Bk-249 Operational 413 30287 Californium 249 Cf-249 Operational 414 30288 Californium 250 Cf-250 Operational 415 30289 Californium 252 Cf-252 Operational 416 30290 Sum aerosol particulates SumAer Operational 417 30291 Sum Iodine SumIod Operational 418 30292 Sum noble gas SumNG Operational 419 30293 Activation gas ActGas Operational 420 30294 Cs-137 Equivalent EquCs137 Operational 421 30295-59999 Reserved Operational 422 30295 Carbon-13 C-13 Operational 423 30296 Lead Pb Operational 424 30297-39999 Reserved Operational 425 40000 Singlet sigma oxygen (dioxygen (sigma singlet)) O2(1Σ+g) Operational 426 40001 Singlet delta oxygen (dioxygen (delta singlet)) O2(1Δg) Operational 427 40002 Singlet excited oxygen atom O(1D) Operational 428 40003 Triplet ground state oxygen atom O(3P) Operational 429 40004-59999 Reserved Operational 430 60000 HOx radical (OH+HO2) Operational 431 60001 Total inorganic and organic peroxy radicals (HO2 + RO2) RO2 Operational 432 60002 Passive Ozone Operational 433 60003 NOx expressed as nitrogen NOx Operational 434 60004 All nitrogen oxides (NOy) expressed as nitrogen NOy Operational 435 60005 Total inorganic chlorine Clx Operational 436 60006 Total inorganic bromine Brx Operational 437 60007 Total inorganic chlorine except HCl, ClONO2: ClOx Operational 438 60008 Total inorganic bromine except HBr, BrONO2: BrOx Operational 439 60009 Lumped alkanes Operational 440 60010 Lumped alkenes Operational 441 60011 Lumped aromatic compounds Operational 442 60012 Lumped terpenes Operational 443 60013 Non-methane volatile organic compounds expressed as carbon NMVOC Operational 444 60014 Anthropogenic non-methane volatile organic compounds expressed as carbon aNMVOC Operational 445 60015 Biogenic non-methane volatile organic compounds expressed as carbon bNMVOC Operational 446 60016 Lumped oxygenated hydrocarbons OVOC Operational 447 60017 NOx expressed as nitrogen dioxide (NO2) NOx Operational 448 60018-61999 Reserved Operational 449 60018 Organic aldehydes RCHO Operational 450 60019 Organic peroxides ROOH Operational 451 60020 Organic nitrates RNO3 Operational 452 60021 Ethers ROR’ Operational 453 60022 Amines NRR’R’’ Operational 454 60023 Ketones RC(O)R’ Operational 455 60024 Dicarbonyls unsaturated RC(O)CH2C(O)R’ Operational 456 60025 Hydroxy dicarbonyls unsaturated RC(O)CHOHC(O)R’ Operational 457 60026 Hydroxy ketones RC(OH)C(O)R’ Operational 458 60027 Oxides Ox Operational 459 60028-62027 Reserved Operational 460 62028 Total aerosol hydrophilic Operational 461 62029 Total aerosol hydrophobic Operational 462 62030-61999 Reserved Operational 463 62000 Total aerosol Operational 464 62001 Dust dry Operational 465 62002 Water in ambient Operational 466 62003 Ammonium dry Operational 467 62004 Nitrate dry Operational 468 62005 Nitric acid trihydrate Operational 469 62006 Sulphate dry Operational 470 62007 Mercury dry Operational 471 62008 Sea salt dry Operational 472 62009 Black carbon dry Operational 473 62010 Particulate organic matter dry Operational 474 62011 Primary particulate organic matter dry Operational 475 62012 Secondary particulate organic matter dry Operational 476 62013 Black carbon hydrophilic dry Operational 477 62014 Black carbon hydrophobic dry Operational 478 62015 Particulate organic matter hydrophilic dry Operational 479 62016 Particulate organic matter hydrophobic dry Operational 480 62017 Nitrate hydrophilic dry Operational 481 62018 Nitrate hydrophobic dry Operational 482 62019 Reserved Operational 483 62020 Smoke - high absorption Operational 484 62021 Smoke - low absorption Operational 485 62022 Aerosol - high absorption Operational 486 62023 Aerosol - low absorption Operational 487 62024 Reserved Operational 488 62025 Volcanic ash Operational 489 62026 Particulate matter (PM) Operational 490 62027-62099 Reserved Operational 491 62100 Alnus (alder) pollen Operational 492 62101 Betula (birch) pollen Operational 493 62102 Castanea (chestnut) pollen Operational 494 62103 Carpinus (hornbeam) pollen Operational 495 62104 Corylus (hazel) pollen Operational 496 62105 Fagus (beech) pollen Operational 497 62106 Fraxinus (ash) pollen Operational 498 62107 Pinus (pine) pollen Operational 499 62108 Platanus (plane) pollen Operational 500 62109 Populus (cottonwood, poplar) pollen Operational 501 62110 Quercus (oak) pollen Operational 502 62111 Salix (willow) pollen Operational 503 62112 Taxus (yew) pollen Operational 504 62113 Tilia (lime, linden) pollen Operational 505 62114 Ulmus (elm) pollen Operational 506 62115-62199 Reserved Operational 507 62200 Ambrosia (ragweed, burr-ragweed) pollen Operational 508 62201 Artemisia (sagebrush, wormwood, mugwort) pollen Operational 509 62202 Brassica (rape, broccoli, Brussels sprouts, cabbage, cauliflower, collards, kale, kohlrabi, mustard, rutabaga) pollen Operational 510 62203 Plantago (plantain) pollen Operational 511 62204 Rumex (dock, sorrel) pollen Operational 512 62205 Urtica (nettle) pollen Operational 513 62206-62299 Reserved Operational 514 62300 Poaceae (grass family) pollen Operational 515 62301-65534 Reserved Operational 516 65535 Missing Operational