Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1137 - Pha1-Narodni muzeum
Code:CZ01HSNAR
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 ~ 51 32 102 ~ ~ 207 123 74 54 61 ~ ~ 32 104 76 82 117 ~ ~ 53 55 66 40 30 ~ ~ 31 19 157 91 75.32 207.00 22.00
2 30 ~ ~ 127 193 146 98 78 ~ ~ 99 66 93 92 115 ~ ~ 73 96 ~ 46 41 ~ ~ 33 45 56 55 ~ ~ ~ 83.26 193.00 19.00
3 63 ~ ~ 96 120 81 55 91 ~ ~ 58 366 116 68 70 ~ ~ 95 66 81 53 59 ~ ~ 29 257 117 ~ ~ ~ ~ 102.16 366.00 19.00
4 ~ ~ 111 99 34 ~ ~ 57 48 53 45 60 ~ ~ 77 61 40 73 181 ~ ~ 61 69 35 39 39 ~ ~ 201 219 ~ 80.10 219.00 20.00
5 ~ 175 201 ~ ~ 30 27 ~ 33 46 ~ ~ 26 ~ ~ 86 107 ~ ~ 44 21 21 21 41 ~ ~ 15 ~ ~ ~ ~ 59.60 201.00 15.00
6 ~ ~ ~ ~ ~ ~ ~ ~ ~ 12 40 41 22 25 ~ ~ 94 104 ~ 49 49 ~ ~ 18 57 38 22 16 ~ ~ ~ 41.93 104.00 14.00
7 15 42 49 41 ~ ~ ~ 137 108 70 177 174 ~ ~ ~ 52 85 67 104 ~ ~ 53 43 19 35 22 ~ ~ 28 37 37 66.43 177.00 21.00
8 64 37 ~ ~ 40 64 32 59 22 ~ ~ 47 34 41 43 63 ~ ~ 31 76 24 85 37 ~ ~ 106 33 55 37 36 ~ 48.45 106.00 22.00
9 ~ 60 56 55 73 103 ~ ~ 130 42 39 86 77 ~ ~ 131 168 ~ 125 ~ ~ ~ 69 37 52 119 186 ~ ~ 80 ~ 88.84 186.00 19.00
10 156 114 96 90 ~ ~ 52 67 65 57 66 ~ ~ 109 114 163 ~ 243 ~ ~ ~ 133 87 ~ 72 ~ ~ ~ 107 111 83 104.47 243.00 19.00
11 102 ~ ~ 67 68 71 96 45 ~ ~ 119 57 18 67 45 ~ ~ 61 118 131 112 129 ~ ~ 187 129 120 78 88 ~ ~ 90.86 187.00 21.00
12 ~ 99 129 85 122 64 ~ ~ 40 29 ~ 150 32 ~ ~ 99 109 124 167 207 ~ ~ 30 ~ ~ ~ 257 ~ ~ ~ 196 114.06 257.00 17.00

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 19 18 10 2 2 1 0 60 52 33 15 5 3 1 0 366
REL. 13.3 31.6 30.0 16.6 3.3 3.3 1.6 0.0 100.0 86.7 55.0 25.0 8.3 5.0 1.7 0.012.3
ID 13 31 30 33 16 83 208 0 416
ABS. 14 21 6 3 2 3 0 0 491 35 14 8 5 3 0 0 219
REL. 28.5 42.8 12.2 6.1 4.0 6.1 0.0 0.0 100.0 71.4 28.6 16.3 10.2 6.1 0.0 0.0 30.4
ID 28 42 12 12 20 153 0 0 269
ABS. 9 30 10 9 4 0 0 0 62 53 23 13 4 0 0 0 186
REL. 14.5 48.3 16.1 14.5 6.4 0.0 0.0 0.0100.0 85.5 37.1 21.0 6.5 0.0 0.0 0.0 27.9
ID 14 48 16 29 32 0 0 0 140
ABS. 4 10 16 19 5 3 0 0 571 53 43 27 8 3 0 0 257
REL 7.0 17.5 28.0 33.3 8.7 5.2 0.0 0.0100.0 93.0 75.4 47.4 14.0 5.3 0.0 0.027.12
ID 7 17 28 66 43 131 0 0 294
Year
ABS. 35 80 50 41 13 8 1 0 2281 193 113 63 22 9 1 0 366
REL. 15.3 35.0 21.9 17.9 5.7 3.5 0.4 0.0100.0 84.6 49.6 27.6 9.6 3.9 0.4 0.0 12.3
ID 15 35 21 35 28 87 54 0 279

Note:

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