Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 430 - Pha1-Rytirska
Code:CZ01HSRYT
Institution:Public Health Service
Region:Hlavni mesto Praha
District:Praha 1
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ 80 222 112 250 146 ~ ~ 52 89 60 59 62 ~ ~ 30 64 73 32 47 ~ ~ 62 323 26 106 52 ~ ~ 53 95.24 323.00 21.00
2 108 62 39 61 ~ ~ 54 12 130 81 151 ~ ~ 107 77 68 111 70 ~ ~ 8.00 72 63 69 ~ ~ ~ 49 111 ~ ~ 75.15 151.00 20.00
3 112 58 53 ~ ~ 41 32 15 47 74 ~ ~ 72 45 140 47 40 ~ ~ 51 52 125 82 119 ~ ~ 60 50 32 75 122 67.13 140.00 23.00
4 ~ ~ 58 86 65 42 45 ~ ~ 86 76 54 54 70 ~ ~ 37 93 56 64 103 ~ ~ ~ 50 100 79 56 ~ ~ ~ 67.05 103.00 19.00
5 ~ 48 28 110 78 ~ ~ ~ 68 27 54 30 ~ ~ 53 56 56 27 38 ~ ~ 37 39 55 38 31 ~ ~ 19 19 50 45.76 110.00 21.00
6 45 47 ~ ~ 38 33 88 60 42 ~ ~ 32 28 55 17 17 ~ ~ 67 81 106 53 57 ~ ~ 35 45 38 95 47 ~ 51.18 106.00 22.00
7 ~ ~ 76 55 ~ ~ 73 ~ ~ 96 61 41 36 45 ~ ~ 42 50 38 36 45 ~ ~ 84 59 57 46 71 ~ ~ 81 57.47 96.00 19.00
8 82 50 42 34 ~ ~ 43 57 68 45 88 ~ ~ 31 79 58 ~ 81 ~ ~ 34 67 86 74 59 ~ ~ 53 69 62 69 60.50 88.00 22.00
9 81 ~ ~ 39 46 73 44 47 ~ ~ 52 57 80 33 32 ~ ~ 29 44 44 55 77 ~ ~ 74 93 99 ~ 43 ~ ~ 57.10 99.00 20.00
10 ~ 98 58 137 106 47 ~ ~ 48 65 65 329 283 ~ ~ 199 149 72 135 81 ~ ~ 96 29 65 48 53 ~ ~ 67 96 105.73 329.00 22.00
11 86 89 94 ~ ~ 39 126 117 96 83 ~ ~ 125 128 126 114 ~ ~ ~ 112 102 192 162 162 ~ ~ 78 118 126 86 ~ 112.43 192.00 21.00
12 45 ~ ~ 95 71 74 89 ~ ~ ~ 260 98 94 101 268 ~ ~ 85 306 213 70 107 ~ ~ ~ ~ 50 61 97 ~ ~ 121.33 306.00 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. 8 26 13 13 1 2 1 0 64 56 30 17 4 3 1 0 323
REL. 12.5 40.6 20.3 20.3 1.5 3.1 1.5 0.0 100.0 87.5 46.9 26.6 6.3 4.7 1.6 0.025.1
ID 12 40 20 40 7 78 195 0 395
ABS. 12 34 13 3 0 0 0 0 62 50 16 3 0 0 0 0 110
REL. 19.3 54.8 20.9 4.8 0.0 0.0 0.0 0.0 100.0 80.6 25.8 4.8 0.0 0.0 0.0 0.0 4.5
ID 19 54 20 9 0 0 0 0 104
ABS. 4 34 23 0 0 0 0 0 61 57 23 0 0 0 0 0 99
REL. 6.5 55.7 37.7 0.0 0.0 0.0 0.0 0.0100.0 93.4 37.7 0.0 0.0 0.0 0.0 0.0 27.9
ID 6 55 37 0 0 0 0 0 100
ABS. 1 12 22 16 4 4 2 0 61 60 48 26 10 6 2 0 329
REL 1.6 19.6 36.0 26.2 6.5 6.5 3.2 0.0100.0 98.4 78.7 42.6 16.4 9.8 3.3 0.012.10
ID 1 19 36 52 32 163 409 0 716
Year
ABS. 25 106 71 32 5 6 3 0 248 223 117 46 14 9 3 0 329
REL. 10.0 42.7 28.6 12.9 2.0 2.4 1.2 0.0100.0 89.9 47.2 18.5 5.6 3.6 1.2 0.012.10
ID 10 42 28 25 10 60 151 0 329

Note:

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