Detailed overview of ambient air pollution valuis from individual stations


Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 779 - Pha8-Kobylisy
Code:CZ08CMKOB
Institution:Czech Hydrometeorological Institute
Region:Prague
District:Praha 8
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 38 44 102 119 96 41 64 64 72 107 46 86 112 58 91 71 30 65 60 37 32 42 50 72 81 80 35 96 94 65 30 67.05 119.22 31.00
2 27 44 48 67 38 59 71 87 52 57 76 113 31 74 220 186 34 16 26 19 28 15 19 25 86 60 63 41 ~ ~ ~ 60.08 220.33 28.00
3 69 37 29 49 25 33 41 41 104 36 47 44 40 29 106 73 44 46 24 32 38 66 65 55 45 19 22 26 34 107 49 47.67 107.15 31.00
4 62 62 71 42 56 54 41 38 39 46 32 19 11 23 29 60 60 38 41 25 22 29 63 75 43 44 66 44 34 31 ~ 43.27 75.50 30.00
5 33 27 36 34 28 24 29 27 30 30 19 29 33 33 43 34 33 38 25 35 24 29 41 33 27 38 31 39 27 38 36 31.67 42.57 31.00
6 22 ~ 13 21 50 79 42 37 30 32 38 31 33 69 48 33 27 21 19 45 49 25 15 33 50 58 51 45 49 35 ~ 37.92 78.84 29.00
7 24 22 27 33 33 28 27 34 44 51 58 38 43 36 25 26 32 41 39 27 28 33 33 46 32 38 49 47 38 62 44 36.64 62.31 31.00
8 47 41 50 44 29 38 46 44 60 43 36 36 62 52 35 40 32 35 46 34 31 34 35 67 64 48 33 18 40 32 63 42.42 67.31 31.00
9 29 33 45 40 23 ~ 70 59 57 74 35 52 66 59 39 43 30 51 44 61 52 64 35 36 49 66 79 41 49 69 ~ 49.98 78.69 29.00
10 56 43 47 52 72 48 60 91 117 76 44 98 99 105 98 95 48 93 156 ~ 57 43 67 86 97 61 52 51 38 42 53 71.52 156.17 30.00
11 33 41 78 74 72 68 61 55 32 128 106 111 47 55 155 115 87 74 65 82 90 52 29 35 119 182 129 86 79 70 ~ 80.41 182.48 30.00
12 44 42 67 99 174 113 60 50 109 154 107 62 40 43 68 47 76 80 87 54 43 66 51 31 49 91 65 72 83 53 34 71.39 174.20 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- 33 34- 67 68- 100 101- 150 151- 200 201- 300 301- 400 over 400 33 67 100 150 200 300 400
ABS. 21 42 17 8 1 1 0 0 90 69 27 10 2 1 0 0 220
REL. 23.3 46.6 18.8 8.8 1.1 1.1 0.0 0.0 100.0 76.7 30.0 11.1 2.2 1.1 0.0 0.015.2
ID 23 46 18 17 5 27 0 0 140
ABS. 41 45 4 0 0 0 0 0 90 49 4 0 0 0 0 0 79
REL. 45.5 50.0 4.4 0.0 0.0 0.0 0.0 0.0 100.0 54.4 4.4 0.0 0.0 0.0 0.0 0.0 6.6
ID 45 50 4 0 0 0 0 0 100
ABS. 25 61 5 0 0 0 0 0 91 66 5 0 0 0 0 0 79
REL. 27.4 67.0 5.4 0.0 0.0 0.0 0.0 0.0100.0 72.5 5.5 0.0 0.0 0.0 0.0 0.0 27.9
ID 27 67 5 0 0 0 0 0 100
ABS. 4 40 31 11 5 0 0 0 91 87 47 16 5 0 0 0 182
REL 4.3 43.9 34.0 12.0 5.4 0.0 0.0 0.0100.0 95.6 51.6 17.6 5.5 0.0 0.0 0.026.11
ID 4 43 34 24 27 0 0 0 134
Year
ABS. 91 188 57 19 6 1 0 0 362 271 83 26 7 1 0 0 220
REL. 25.1 51.9 15.7 5.2 1.6 0.2 0.0 0.0100.0 74.9 22.9 7.2 1.9 0.3 0.0 0.0 15.2
ID 25 51 15 10 8 6 0 0 118

Note:

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