Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
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 34 38 75 194 222 139 135 201 109 97 89 113 103 121 81 58 149 108 112 112 141 143 110 107 78 80 84 67 56 96 92 107.77 221.57 31.00
2 97 64 69 108 78 128 88 81 67 58 67 56 77 46 50 38 93 104 65 69 50 54 65 49 90 81 72 67 ~ ~ ~ 72.50 127.89 28.00
3 64 43 47 67 137 96 54 61 57 48 62 84 103 42 63 67 104 79 59 61 52 26 27 27 31 33 41 164 166 105 66 68.88 165.72 31.00
4 58 81 33 36 29 31 31 50 44 41 55 43 ~ 44 63 49 71 57 53 33 26 48 55 39 43 40 23 31 43 44 ~ 44.69 81.18 29.00
5 31 43 40 33 33 43 29 26 29 32 46 39 52 60 55 64 47 37 35 41 39 39 ~ ~ ~ ~ ~ ~ 33 60 42 41.12 63.50 25.00
6 27 44 58 52 42 35 55 43 52 46 63 64 48 43 63 57 47 36 29 23 28 20 19 27 32 36 26 ~ ~ ~ ~ 41.40 63.72 27.00
7 36 65 29 20 22 16 27 33 25 25 54 27 ~ ~ ~ 26 46 25 32 29 19 31 40 21 28 44 31 34 30 31 50 32.09 65.33 28.00
8 66 65 29 24 37 ~ 27 40 35 17 18 18 14 14 14 16 22 25 26 37 37 102 60 30 30 25 42 86 77 82 32 38.31 101.52 30.00
9 19 28 29 42 73 66 37 29 37 41 34 45 76 22 13 45 29 54 58 82 ~ 51 25 18 64 53 19 62 92 160 ~ 48.38 159.87 29.00
10 145 88 66 37 20 17 23 30 29 30 22 17 37 81 68 101 55 43 24 72 96 118 29 64 48 15 20 23 68 153 99 56.07 153.07 31.00
11 105 31 26 55 29 45 88 46 21 54 55 106 96 111 153 112 78 91 36 64 61 64 80 42 107 102 53 58 63 52 ~ 69.47 152.94 30.00
12 50 83 65 62 40 31 25 21 44 55 68 49 67 40 36 105 78 33 98 171 136 55 38 26 26 29 32 76 47 36 28 56.48 171.08 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. 5 30 29 21 3 2 0 0 90 85 55 26 5 2 0 0 222
REL. 5.5 33.3 32.2 23.3 3.3 2.2 0.0 0.0 100.0 94.4 61.1 28.9 5.6 2.2 0.0 0.05.1
ID 5 33 32 46 16 55 0 0 190
ABS. 25 54 2 0 0 0 0 0 81 56 2 0 0 0 0 0 81
REL. 30.8 66.6 2.4 0.0 0.0 0.0 0.0 0.0 100.0 69.1 2.5 0.0 0.0 0.0 0.0 0.0 2.4
ID 30 66 2 0 0 0 0 0 100
ABS. 47 31 7 1 1 0 0 0 87 40 9 2 1 0 0 0 160
REL. 54.0 35.6 8.0 1.1 1.1 0.0 0.0 0.0100.0 46.0 10.3 2.3 1.1 0.0 0.0 0.0 30.9
ID 54 35 8 2 5 0 0 0 105
ABS. 26 34 18 11 3 0 0 0 92 66 32 14 3 0 0 0 171
REL 28.2 36.9 19.5 11.9 3.2 0.0 0.0 0.0100.0 71.7 34.8 15.2 3.3 0.0 0.0 0.020.12
ID 28 36 19 23 16 0 0 0 125
Year
ABS. 103 149 56 33 7 2 0 0 350 247 98 42 9 2 0 0 222
REL. 29.4 42.5 16.0 9.4 2.0 0.5 0.0 0.0100.0 70.6 28.0 12.0 2.6 0.6 0.0 0.0 5.1
ID 29 42 16 18 10 14 0 0 131

Note:

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