Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:O3-ozone
Station: 774 - Pha4-Libus
Code:CZ04CMLIB
Institution:CHMI
Region:Hlavni mesto Praha
District:Praha 4
IHd: 160
Measure method:UV-absorption
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 22 28 63 67 69 51 47 58 41 21 6.42 11 13 6.99 32 30 45 43 39 37 27 17 21 16 20 10 10 19 11 32 41 30.81 68.83 31.00
2 42 45 40 32 33 28 52 54 56 53 55 43 39 43 46 48 42 32 39 36 56 22 25 15 2.78 23 48 66 ~ ~ ~ 39.86 66.13 28.00
3 64 63 66 55 65 55 65 65 53 47 55 61 63 64 41 33 32 49 67 64 57 44 65 56 60 81 67 29 61 74 75 57.93 80.69 31.00
4 67 53 62 76 68 55 68 64 64 73 55 69 62 60 69 53 57 62 45 75 46 67 82 ~ 73 84 84 80 80 80 ~ 66.68 84.40 29.00
5 80 68 53 73 71 56 49 95 105 92 87 91 83 88 66 69 64 71 96 75 59 74 68 68 69 68 89 105 102 64 54 75.89 104.93 31.00
6 44 93 71 89 105 92 80 40 80 78 54 71 49 53 65 68 61 53 43 57 68 74 70 38 64 77 76 49 62 71 ~ 66.52 104.54 30.00
7 40 63 91 54 49 42 29 46 55 51 49 33 49 55 64 55 68 42 62 80 81 56 82 69 66 65 76 73 47 40 56 57.62 90.68 31.00
8 87 93 38 75 58 51 86 90 70 71 113 126 47 62 83 97 109 121 72 112 47 49 46 39 52 62 57 49 46 58 39 71.03 126.14 31.00
9 49 70 60 61 59 39 42 38 54 59 37 44 37 59 40 34 23 31 35 36 36 39 42 46 18 16 15 37 19 40 ~ 40.42 70.39 30.00
10 23 11 16 41 14 13 23 7.64 10 25 31 40 39 25 17 30 ~ 23 22 34 39 40 49 37 42 48 54 ~ 52 50 50 31.24 53.59 29.00
11 47 39 63 44 35 36 19 29 14 20 44 29 19 30 18 13 26 33 16 40 29 18 7.85 11 18 5.28 14 14 15 16 ~ 25.36 62.63 30.00
12 29 12 17 12 44 50 46 36 20 10 12 16 57 30 27 42 35 19 49 44 38 21 20 28 38 41 62 41 8.42 40 52 32.08 62.01 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- 53 54- 107 108- 160 161- 240 241- 320 321- 480 481- 640 over 640 53 107 160 240 320 480 640
ABS. 58 32 0 0 0 0 0 0 90 32 0 0 0 0 0 0 81
REL. 64.4 35.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 35.6 0.0 0.0 0.0 0.0 0.0 0.026.3
ID 64 35 0 0 0 0 0 0 100
ABS. 13 77 0 0 0 0 0 0 90 77 0 0 0 0 0 0 105
REL. 14.4 85.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 85.6 0.0 0.0 0.0 0.0 0.0 0.0 28.5
ID 14 85 0 0 0 0 0 0 100
ABS. 46 41 5 0 0 0 0 0 92 46 5 0 0 0 0 0 126
REL. 50.0 44.5 5.4 0.0 0.0 0.0 0.0 0.0100.0 50.0 5.4 0.0 0.0 0.0 0.0 0.0 12.8
ID 50 44 5 0 0 0 0 0 100
ABS. 86 4 0 0 0 0 0 0 90 4 0 0 0 0 0 0 63
REL 95.5 4.4 0.0 0.0 0.0 0.0 0.0 0.0100.0 4.4 0.0 0.0 0.0 0.0 0.0 0.0 3.11
ID 95 4 0 0 0 0 0 0 100
Year
ABS. 203 154 5 0 0 0 0 0 362 159 5 0 0 0 0 0 126
REL. 56.0 42.5 1.3 0.0 0.0 0.0 0.0 0.0100.0 43.9 1.4 0.0 0.0 0.0 0.0 0.0 12.8
ID 56 42 1 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