Day/ Month1 | 2 | 3 | 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 | X | Max | N
| 1 | 271 | 274 | 275 | 276 | 278 | 279 | 278 | 276 | 274 | 274 | 274 | 273 | 271 | 272 | 270 | 270 | 272 | 273 | 274 | 275 | 274 | 274 | 275 | 275 | 277 | 276 | 276 | 274 | 276 | 275 | 275 | 274.36 | 279.08 | 31.00
| 2 | 274 | 271 | 271 | 274 | 278 | 282 | 281 | 280 | 279 | 274 | 276 | 278 | 279 | 277 | 275 | 276 | 276 | 275 | 278 | 279 | 279 | 276 | 272 | 265 | 266 | 271 | 272 | 275 | ~ | ~ | ~ | 275.28 | 281.87 | 28.00
| 3 | 275 | 274 | 275 | 276 | 274 | 274 | 279 | 281 | 280 | 285 | 285 | 287 | 282 | 279 | 277 | 280 | 278 | 280 | 277 | 273 | 274 | 277 | 279 | 283 | 277 | 272 | 273 | 276 | 278 | 281 | 281 | 278.15 | 286.58 | 31.00
| 4 | 284 | 285 | 286 | 287 | 281 | 282 | 283 | 281 | 279 | 283 | 284 | 279 | 275 | 275 | 277 | 280 | 279 | 280 | 279 | 280 | 279 | 278 | 279 | 284 | 289 | 284 | 285 | 285 | 288 | 293 | ~ | 282.15 | 293.17 | 30.00
| 5 | 295 | 292 | 297 | 290 | 284 | 282 | 282 | 286 | 289 | 291 | 290 | 287 | 290 | 294 | 290 | 294 | 292 | 287 | 286 | 288 | 289 | 287 | 289 | 292 | 290 | 292 | 295 | 293 | 294 | 289 | 288 | 289.86 | 296.64 | 31.00
| 6 | 286 | 287 | 285 | 285 | 286 | 288 | 291 | 287 | 289 | 288 | 285 | 287 | 290 | 292 | 295 | 291 | 289 | 290 | 288 | 289 | 290 | 287 | 289 | 291 | 292 | 293 | 297 | 295 | 296 | 297 | ~ | 289.79 | 297.10 | 30.00
| 7 | 292 | 288 | 293 | 295 | 296 | 299 | 297 | 293 | 291 | 294 | 292 | 294 | 292 | 296 | 294 | 289 | 288 | 291 | 290 | 292 | 290 | 294 | 296 | 295 | 296 | 297 | 296 | 297 | 295 | 297 | 299 | 293.81 | 299.26 | 31.00
| 8 | 292 | 295 | 297 | 292 | 293 | 294 | 294 | 294 | 294 | 292 | 288 | 292 | 291 | 298 | 301 | 300 | 295 | 297 | 297 | 296 | 293 | 295 | 296 | 296 | 298 | 297 | 292 | 291 | 288 | 292 | 289 | 294.13 | 300.73 | 31.00
| 9 | 289 | 289 | 292 | 290 | 289 | 288 | 288 | 287 | 286 | 286 | 286 | 285 | 287 | 286 | 286 | 284 | 285 | 284 | 286 | 287 | 286 | 285 | 286 | 287 | 287 | 285 | 286 | 287 | 288 | 289 | ~ | 286.87 | 291.82 | 30.00
| 10 | 290 | 292 | 293 | 286 | 284 | 286 | 288 | 288 | 288 | 286 | 288 | 287 | 286 | 287 | 287 | 287 | 288 | 285 | 283 | 287 | 286 | 286 | 284 | 283 | 285 | 286 | 283 | 284 | 285 | 287 | 287 | 286.64 | 293.29 | 31.00
| 11 | 282 | 284 | 283 | 284 | 279 | 280 | 282 | 280 | 275 | 273 | 274 | 276 | 274 | 274 | 275 | 278 | 277 | 277 | 279 | ~ | ~ | ~ | ~ | ~ | ~ | ~ | ~ | ~ | ~ | 276 | ~ | 278.19 | 283.54 | 20.00
| 12 | 274 | 273 | 273 | 274 | 276 | 277 | 277 | 273 | 271 | 274 | 276 | 275 | 263 | 266 | 271 | 273 | 274 | 275 | 277 | 268 | 273 | 273 | 263 | 269 | 275 | 275 | 274 | 277 | 274 | 273 | 268 | 272.68 | 277.18 | 31.00
|
Quarterly and annual absolute and relative frequency of average daily concentrations
partial and total air pollution indexes according to classes of IHd multiples
Quarter
concentration classes in IHd multiplestotal ind.
| part of it in IHd multiples
max. date
<=1/3 | <=2/3 | <=1.0 | <=1.5 | <=2.0 | <=3.0 | <=4.0
| >
| 1/3 | 2/3 | 1.0 | 1.5 | 2.0
| 3.0 | 4.0
| concentration classes in measurement units
part of above IHd multiples in meas. units
0- 50 | 51- 100 | 101- 150 | 151- 225 | 226- 300 | 301- 450 | 451- 600 | over 600 | 50 | 100 | 150 | 225 | 300 | 450 | 600
| |
|
|
ABS. | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 0 | 90
| 90 | 90 | 90 | 90 | 0 | 0 | 0 | 287
| REL. | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0
| 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 12.3
| ID | 0 | 0 | 0 | 0 | 500 | 0 | 0 | 0 | 500
| |
|
|
ABS. | 0 | 0 | 0 | 0 | 91 | 0 | 0 | 0 | 91
| 91 | 91 | 91 | 91 | 0 | 0 | 0 | 297
| REL. | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0
| 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 27.6
| ID | 0 | 0 | 0 | 0 | 500 | 0 | 0 | 0 | 500
| |
|
|
ABS. | 0 | 0 | 0 | 0 | 90 | 2 | 0 | 0 | 92
| 92 | 92 | 92 | 92 | 2 | 0 | 0 | 301
| REL. | 0.0 | 0.0 | 0.0 | 0.0 | 97.8 | 2.1 | 0.0 | 0.0 | 100.0
| 100.0 | 100.0 | 100.0 | 100.0 | 2.2 | 0.0 | 0.0 | 15.8
| ID | 0 | 0 | 0 | 0 | 489 | 54 | 0 | 0 | 543
| |
|
|
ABS. | 0 | 0 | 0 | 0 | 82 | 0 | 0 | 0 | 82
| 82 | 82 | 82 | 82 | 0 | 0 | 0 | 293
| REL | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0
| 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 3.10
| ID | 0 | 0 | 0 | 0 | 500 | 0 | 0 | 0 | 500
|
Year
| ABS. | 0 | 0 | 0 | 0 | 353 | 2 | 0 | 0 | 355
| 355 | 355 | 355 | 355 | 2 | 0 | 0 | 301 | REL. | 0.0 | 0.0 | 0.0 | 0.0 | 99.4 | 0.5 | 0.0 | 0.0 | 100.0
| 100.0 | 100.0 | 100.0 | 100.0 | 0.6 | 0.0 | 0.0 | 15.8
| ID | 0 | 0 | 0 | 0 | 497 | 14 | 0 | 0 | 511
|
Note:
| 1 frequency < 60 per quarter, or < 240 per annum
|
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2 frequency < 30 per quarter, or < 120 per annum
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