Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 779 - Pha8-Kobylisy
Code:CZ08CMKOB
Institution:Czech Hydrometeorological Institute
Region:Hlavni mesto Praha
District:Praha 8
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 55 27 50 44 71 145 155 59 36 35 70 67 28 57 63 33 19 12 18 25 17 46 26 49 81 65 57 58 19 19 18 49.24 154.82 31.00
2 48 27 25 41 37 72 42 22 14 42 73 43 18 36 52 38 27 45 44 16 73 71 53 51 25 86 35 41 63 ~ ~ 43.47 85.80 29.00
3 21 22 23 11 15 40 26 17 11 36 15 42 70 33 15 22 18 37 13 27 33 91 87 67 57 28 15 23 22 37 36 32.55 90.55 31.00
4 46 24 24 48 23 14 15 43 21 33 69 51 29 38 21 21 28 41 40 43 73 26 13 13 21 29 19 14 15 27 ~ 30.73 73.00 30.00
5 23 18 30 31 25 16 12 19 34 40 17 12 12 42 30 39 33 29 29 ~ 22 17 27 31 22 22 17 19 21 16 30 24.42 41.80 30.00
6 40 25 21 45 32 23 22 27 19 16 14 27 24 23 18 9 28 30 54 38 62 20 37 14 20 13 18 17 30 33 ~ 26.63 61.84 30.00
7 21 40 29 21 10 16 22 11 13 27 36 17 18 24 10 12 15 26 14 15 24 17 19 51 40 28 38 20 10 20 46 22.92 51.01 31.00
8 36 24 23 29 15 18 25 58 60 46 26 25 48 71 36 38 47 57 44 37 20 32 34 29 16 12 13 48 68 44 40 36.04 70.85 31.00
9 58 18 13 16 35 56 37 50 ~ 49 76 63 45 33 31 24 23 28 33 28 29 28 17 30 64 68 61 36 23 18 ~ 37.59 76.23 29.00
10 24 66 38 69 74 26 20 34 44 42 49 60 145 36 21 50 60 30 134 56 21 114 94 65 48 36 37 36 41 46 47 53.66 145.40 31.00
11 54 55 57 25 40 25 97 74 87 68 69 31 52 79 80 59 38 50 52 70 86 97 193 130 54 30 ~ ~ 116 68 ~ 69.14 192.68 28.00
12 45 43 80 84 43 40 46 117 122 82 79 70 38 44 27 15 30 96 91 107 62 55 78 43 43 67 43 54 104 35 35 61.84 122.28 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. 39 37 13 1 1 0 0 0 91 52 15 2 1 0 0 0 155
REL. 42.8 40.6 14.2 1.0 1.0 0.0 0.0 0.0 100.0 57.1 16.5 2.2 1.1 0.0 0.0 0.07.1
ID 42 40 14 2 5 0 0 0 105
ABS. 69 19 2 0 0 0 0 0 90 21 2 0 0 0 0 0 73
REL. 76.6 21.1 2.2 0.0 0.0 0.0 0.0 0.0 100.0 23.3 2.2 0.0 0.0 0.0 0.0 0.0 21.4
ID 76 21 2 0 0 0 0 0 100
ABS. 55 32 4 0 0 0 0 0 91 36 4 0 0 0 0 0 76
REL. 60.4 35.1 4.3 0.0 0.0 0.0 0.0 0.0100.0 39.6 4.4 0.0 0.0 0.0 0.0 0.0 11.9
ID 60 35 4 0 0 0 0 0 100
ABS. 13 45 22 9 1 0 0 0 90 77 32 10 1 0 0 0 193
REL 14.4 50.0 24.4 10.0 1.1 0.0 0.0 0.0100.0 85.6 35.6 11.1 1.1 0.0 0.0 0.023.11
ID 14 50 24 20 5 0 0 0 114
Year
ABS. 176 133 41 10 2 0 0 0 362 186 53 12 2 0 0 0 193
REL. 48.6 36.7 11.3 2.7 0.5 0.0 0.0 0.0100.0 51.4 14.6 3.3 0.6 0.0 0.0 0.023.11
ID 48 36 11 5 2 0 0 0 104

Note:

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