Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:O3-ozone
Station: 774 - Pha4-Libus
Code:CZ04CMLIB
Institution:Czech Hydrometeorological Institute
Region:Hlavni mesto Praha
District:Praha 4
IHd: 160
Measure method:UV-absorption
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 24 32 35 43 37 16 7.26 15 ~ 15 36 39 51 33 10 31 42 54 46 35 55 42 30 32 31 23 26 50 64 59 51 35.51 64.10 30.00
2 33 40 44 44 40 39 59 58 57 53 32 49 54 46 41 53 42 52 35 39 34 32 23 41 43 28 60 70 64 ~ ~ 45.00 70.20 29.00
3 51 63 64 69 64 60 57 42 57 53 56 33 40 49 62 53 53 54 47 40 38 19 42 20 ~ 62 46 23 60 21 46 48.10 68.60 30.00
4 70 77 72 35 62 65 59 59 73 60 54 59 72 40 75 70 41 19 17 29 ~ ~ 106 64 44 63 ~ 91 73 78 ~ 60.23 105.51 27.00
5 76 79 87 80 87 95 95 69 70 81 86 100 70 58 58 ~ ~ 53 62 66 71 54 ~ ~ ~ ~ ~ ~ ~ ~ ~ 74.96 100.47 20.00
6 76 ~ ~ ~ ~ 61 64 82 106 ~ ~ 72 ~ ~ 55 76 67 80 109 129 136 122 52 65 59 61 57 63 62 72 ~ 78.62 136.09 22.00
7 93 67 83 79 75 65 68 40 57 56 43 36 70 39 45 45 50 42 49 48 38 58 71 57 62 60 74 59 81 59 58 59.00 92.98 31.00
8 89 89 71 63 72 46 46 36 35 70 66 82 83 97 105 77 85 83 85 80 83 52 64 80 51 61 59 39 51 72 69 69.06 105.10 31.00
9 75 58 49 46 29 48 24 45 71 60 31 55 62 59 57 55 24 29 34 31 19 7.57 44 35 35 32 26 68 79 84 ~ 45.72 84.05 30.00
10 53 26 11 8.46 21 20 21 17 35 46 23 24 5.30 19 65 31 15 12 4.09 37 36 21 21 23 44 36 43 32 44 37 44 28.27 65.10 31.00
11 42 31 13 27 26 50 18 27 28 39 37 29 8.96 8.98 21 15 7.48 36 25 10 6.84 10 3.01 2.62 4.69 28 30 19 6.86 11 ~ 20.69 49.65 30.00
12 11 5.32 7.10 18 12 20 11 2.29 3.74 35 35 32 49 47 38 36 23 20 3.72 3.76 27 17 19 20 11 5.75 19 12 12 23 27 19.55 48.96 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. 66 23 0 0 0 0 0 0 89 23 0 0 0 0 0 0 70
REL. 74.1 25.8 0.0 0.0 0.0 0.0 0.0 0.0 100.0 25.8 0.0 0.0 0.0 0.0 0.0 0.028.2
ID 74 25 0 0 0 0 0 0 100
ABS. 8 57 4 0 0 0 0 0 69 61 4 0 0 0 0 0 136
REL. 11.5 82.6 5.7 0.0 0.0 0.0 0.0 0.0 100.0 88.4 5.8 0.0 0.0 0.0 0.0 0.0 21.6
ID 11 82 5 0 0 0 0 0 100
ABS. 37 55 0 0 0 0 0 0 92 55 0 0 0 0 0 0 105
REL. 40.2 59.7 0.0 0.0 0.0 0.0 0.0 0.0100.0 59.8 0.0 0.0 0.0 0.0 0.0 0.0 15.8
ID 40 59 0 0 0 0 0 0 100
ABS. 91 1 0 0 0 0 0 0 92 1 0 0 0 0 0 0 65
REL 98.9 1.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 1.1 0.0 0.0 0.0 0.0 0.0 0.015.10
ID 98 1 0 0 0 0 0 0 100
Year
ABS. 202 136 4 0 0 0 0 0 342 140 4 0 0 0 0 0 136
REL. 59.0 39.7 1.1 0.0 0.0 0.0 0.0 0.0100.0 40.9 1.2 0.0 0.0 0.0 0.0 0.0 21.6
ID 59 39 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