Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:CO-carbon monoxide
Station: 774 - Pha4-Libus
Code:CZ04CMLIB
Institution:CHMI
Region:Hlavni mesto Praha
District:Praha 4
IHd: 5000
Measure method:IR corel. absorption spectrometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 727 567 326 450 484 418 412 406 461 741 1709 708 765 1093 665 545 446 536 473 519 487 589 539 617 842 1575 2150 942 966 607 665 723.52 2149.60 31.00
2 811 860 712 897 849 709 556 401 415 570 615 580 523 551 544 446 490 574 602 758 747 1007 720 626 907 732 566 533 ~ ~ ~ 653.59 1006.83 28.00
3 571 576 582 621 567 610 633 639 676 801 910 871 453 331 665 857 693 ~ ~ ~ ~ ~ ~ ~ 482 376 188 540 419 496 563 588.31 909.97 24.00
4 536 448 350 364 367 396 386 425 536 439 589 431 540 ~ 448 635 463 426 400 415 463 414 407 ~ 424 382 436 455 400 418 ~ 442.59 635.31 28.00
5 313 302 337 285 318 380 326 332 339 340 337 334 336 341 350 321 365 346 324 358 295 318 333 394 361 338 375 386 331 357 400 341.02 400.01 31.00
6 457 408 447 343 352 424 455 470 460 352 431 348 353 367 273 356 388 465 379 384 416 342 396 339 351 400 430 382 431 374 ~ 392.46 470.14 30.00
7 310 314 274 288 324 315 323 236 297 294 304 303 280 332 321 348 297 336 345 365 415 430 372 396 399 371 411 320 284 295 303 329.04 429.69 31.00
8 231 228 351 341 300 392 433 350 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 332 274 282 330 337 420 328.44 432.55 14.00
9 435 400 421 384 407 436 432 421 393 408 525 436 425 283 365 377 417 459 597 549 478 621 639 712 819 1059 804 521 627 509 ~ 511.95 1059.37 30.00
10 483 538 571 500 621 589 639 854 797 541 480 501 462 475 560 674 ~ 570 701 481 438 463 448 466 405 429 436 ~ 422 389 422 529.45 854.16 29.00
11 381 458 364 429 492 482 941 746 754 670 513 609 479 ~ ~ 743 407 461 672 468 545 796 1193 1106 671 846 986 1325 784 790 ~ 682.51 1325.41 28.00
12 465 804 769 691 484 368 339 449 839 1145 1300 1058 377 482 507 461 551 664 456 502 483 582 653 358 291 297 317 781 1123 550 564 603.42 1299.57 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 multiples

total ind.

part of it in IHd multiples

max.
date

<=1/3 <=2/3 <=1.0 <=1.5 <=2.0 <=3.0 <=4.0 > 1/32/31.01.52.0 3.04.0

concentration classes in measurement units

part of above IHd multiples in meas. units

0- 1667 1668- 3333 3334- 5000 5001- 7500 7501-1000010001-1500015001-20000 over 20000 1667 3333 5000 7500100001500020000
ABS. 81 2 0 0 0 0 0 0 83 2 0 0 0 0 0 0 2150
REL. 97.5 2.4 0.0 0.0 0.0 0.0 0.0 0.0 100.0 2.4 0.0 0.0 0.0 0.0 0.0 0.027.1
ID 97 2 0 0 0 0 0 0 100
ABS. 89 0 0 0 0 0 0 0 89 0 0 0 0 0 0 0 635
REL.100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16.4
ID 100 0 0 0 0 0 0 0 100
ABS. 75 0 0 0 0 0 0 0 75 0 0 0 0 0 0 0 1059
REL.100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26.9
ID 100 0 0 0 0 0 0 0 100
ABS. 88 0 0 0 0 0 0 0 88 0 0 0 0 0 0 0 1325
REL100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.028.11
ID 100 0 0 0 0 0 0 0 100
Year
ABS. 333 2 0 0 0 0 0 0 335 2 0 0 0 0 0 0 2150
REL. 99.4 0.5 0.0 0.0 0.0 0.0 0.0 0.0100.0 0.6 0.0 0.0 0.0 0.0 0.0 0.0 27.1
ID 99 0 0 0 0 0 0 100

Note:

1 frequency < 60 per quarter, or < 240 per annum
2 frequency < 30 per quarter, or < 120 per annum