Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1300 - Pha8-Lyckovo nam.
Code:CZ08CMLYC
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 57 60 128 174 145 44 68 97 76 112 87 121 125 84 157 119 44 109 68 51 59 64 67 78 109 112 51 153 119 58 52 91.85 174.30 31.00
2 52 52 56 87 38 59 100 97 60 103 91 197 66 89 259 235 54 40 57 34 36 35 45 43 92 71 85 61 ~ ~ ~ 81.88 259.13 28.00
3 76 65 48 47 46 51 55 54 96 38 44 44 40 34 110 95 49 65 28 33 49 87 74 68 65 33 33 39 40 113 68 57.68 112.70 31.00
4 72 93 87 69 46 48 30 34 64 69 47 35 31 28 26 53 67 44 66 41 25 36 80 106 61 36 74 36 38 45 ~ 52.93 106.18 30.00
5 41 26 42 40 25 22 31 34 45 63 32 35 48 37 43 31 28 39 34 44 33 35 55 73 38 46 32 41 32 34 37 38.57 72.81 31.00
6 31 17 17 30 66 59 36 33 23 24 37 45 47 52 42 18 22 29 29 40 37 27 19 42 58 63 52 40 48 29 ~ 37.04 65.93 30.00
7 25 28 24 21 23 15 12 18 31 51 35 28 32 29 17 30 42 28 39 37 31 43 37 45 31 38 47 38 27 45 28 31.48 51.05 31.00
8 37 29 28 19 17 32 36 27 51 34 30 25 58 45 28 39 23 26 45 35 29 31 35 50 47 38 28 25 56 39 47 35.13 57.77 31.00
9 26 27 34 32 37 42 40 16 14 ~ 25 ~ ~ ~ 23 33 41 47 ~ 50 36 46 36 51 51 58 48 41 40 46 ~ 37.54 58.13 25.00
10 41 44 63 51 74 41 62 95 133 64 43 99 76 113 ~ 106 55 93 166 75 44 55 86 79 72 46 40 45 39 38 56 69.76 166.12 30.00
11 35 56 68 53 72 53 44 31 49 137 115 81 58 92 125 162 71 59 77 108 74 43 44 54 164 191 118 66 65 60 ~ 80.79 190.73 30.00
12 32 33 61 99 154 93 52 47 122 117 96 46 47 63 75 42 70 71 56 52 32 43 35 22 21 32 30 26 43 28 34 57.15 154.39 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. 3 45 23 13 4 2 0 0 90 87 42 19 6 2 0 0 259
REL. 3.3 50.0 25.5 14.4 4.4 2.2 0.0 0.0 100.0 96.7 46.7 21.1 6.7 2.2 0.0 0.015.2
ID 3 50 25 28 22 55 0 0 185
ABS. 29 52 9 1 0 0 0 0 91 62 10 1 0 0 0 0 106
REL. 31.8 57.1 9.8 1.0 0.0 0.0 0.0 0.0 100.0 68.1 11.0 1.1 0.0 0.0 0.0 0.0 24.4
ID 31 57 9 2 0 0 0 0 101
ABS. 42 45 0 0 0 0 0 0 87 45 0 0 0 0 0 0 58
REL. 48.2 51.7 0.0 0.0 0.0 0.0 0.0 0.0100.0 51.7 0.0 0.0 0.0 0.0 0.0 0.0 26.9
ID 48 51 0 0 0 0 0 0 100
ABS. 10 44 22 10 5 0 0 0 91 81 37 15 5 0 0 0 191
REL 10.9 48.3 24.1 10.9 5.4 0.0 0.0 0.0100.0 89.0 40.7 16.5 5.5 0.0 0.0 0.026.11
ID 10 48 24 21 27 0 0 0 132
Year
ABS. 84 186 54 24 9 2 0 0 359 275 89 35 11 2 0 0 259
REL. 23.3 51.8 15.0 6.6 2.5 0.5 0.0 0.0100.0 76.6 24.8 9.7 3.1 0.6 0.0 0.0 15.2
ID 23 51 15 13 12 13 0 0 130

Note:

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