Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 430 - Pha1-Rytirska
Code:CZ01HSRYT
Institution:Public Health Service
Region:Prague
District:Praha 1
IHd: 100
Measure method:triethanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ 174 76 75 ~ ~ 125 95 89 77 57 ~ ~ 75 79 58 32 54 ~ ~ 49 46 57 43 41 ~ ~ 31 38 71 94 69.82 174.00 22.00
2 84 ~ ~ 100 93 134 67 58 ~ ~ 59 55 99 67 100 ~ ~ 53 104 83 56 54 ~ ~ 71 39 53 47 ~ ~ ~ 73.80 134.00 20.00
3 51 ~ ~ 68 146 104 36 40 ~ ~ 107 159 18 142 71 ~ ~ 95 56 63 49 42 ~ ~ 31 ~ 35 85 389 ~ ~ 89.35 389.00 20.00
4 ~ 646 165 54 38 ~ ~ 12 18 60 28 75 ~ ~ 81 75 70 ~ 62 ~ ~ 63 69 69 73 29 ~ ~ ~ 65 ~ 92.21 646.00 19.00
5 ~ ~ 49 ~ ~ 36 30 ~ 15 50 ~ ~ 61 79 148 23 14 ~ ~ 26 33 36 17 17 ~ ~ 30 97 12 ~ 25 42.00 148.00 19.00
6 ~ ~ 30 38 20 24 81 ~ ~ 26 51 37 29 53 ~ ~ 70 40 51 28 23 ~ ~ 22 19 36 27 27 ~ ~ ~ 36.60 81.00 20.00
7 42 67 88 29 ~ ~ ~ 44 48 46 31 249 ~ ~ 58 121 83 37 42 ~ ~ 44 60 33 ~ 83 ~ ~ 42 63 54 64.95 249.00 21.00
8 79 45 ~ ~ 33 56 63 35 41 ~ ~ 48 22 40 56 56 ~ ~ 76 73 114 96 33 ~ ~ 99 177 52 84 95 ~ 66.95 177.00 22.00
9 ~ 99 76 78 143 121 ~ ~ 136 58 130 192 159 ~ ~ 82 211 66 79 110 ~ ~ 66 37 54 58 26 ~ ~ 165 ~ 102.19 211.00 21.00
10 307 146 67 56 ~ ~ 57 57 49 38 28 ~ ~ 71 96 136 106 61 ~ ~ 137 160 54 88 66 ~ ~ ~ 102 134 143 98.14 307.00 22.00
11 115 ~ ~ 98 43 57 79 69 ~ ~ 59 118 131 120 169 ~ ~ 85 84 89 89 94 ~ ~ 157 138 86 81 83 ~ ~ 97.33 169.00 21.00
12 ~ 181 61 126 95 84 ~ ~ 71 80 73 55 41 ~ ~ 84 ~ 86 130 89 ~ ~ 65 ~ ~ ~ 92 ~ ~ 81 44 85.44 181.00 18.00

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. 4 26 22 7 2 0 1 0 62 58 32 10 3 1 1 0 389
REL. 6.4 41.9 35.4 11.2 3.2 0.0 1.6 0.0 100.0 93.5 51.6 16.1 4.8 1.6 1.6 0.029.3
ID 6 41 35 22 16 0 201 0 324
ABS. 26 18 11 1 1 0 0 1 581 32 14 3 2 1 1 1 646
REL. 44.8 31.0 18.9 1.7 1.7 0.0 0.0 1.7 100.0 55.2 24.1 5.2 3.4 1.7 1.7 1.7 2.4
ID 44 31 18 3 8 0 0 1077 1184
ABS. 7 28 16 7 4 2 0 0 64 57 29 13 6 2 0 0 249
REL. 10.9 43.7 25.0 10.9 6.2 3.1 0.0 0.0100.0 89.1 45.3 20.3 9.4 3.1 0.0 0.0 12.7
ID 10 43 25 21 31 78 0 0 210
ABS. 1 16 25 14 4 0 1 0 61 60 44 19 5 1 1 0 307
REL 1.6 26.2 40.9 22.9 6.5 0.0 1.6 0.0100.0 98.4 72.1 31.1 8.2 1.6 1.6 0.0 1.10
ID 1 26 40 45 32 0 204 0 352
Year
ABS. 38 88 74 29 11 2 2 1 245 207 119 45 16 5 3 1 646
REL. 15.5 35.9 30.2 11.8 4.4 0.8 0.8 0.4100.0 84.5 48.6 18.4 6.5 2.0 1.2 0.4 2.4
ID 15 35 30 23 22 20 102 255 505

Note:

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