Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 446 - Pha8-Sokolovska
Code:CZ08HSSOK
Institution:Public Health Service
Region:Hlavni mesto Praha
District:Praha 8
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ 382 75 350 264 242 ~ ~ 205 211 102 64 112 ~ ~ 93 165 102 161 100 ~ ~ 156 163 178 189 101 ~ ~ 47 164.86 382.00 21.00
2 27 25 132 227 ~ ~ 211 186 192 265 472 ~ ~ 154 313 128 201 92 ~ ~ 373 121 105 134 145 ~ ~ 119 188 ~ ~ 181.43 472.00 21.00
3 119 124 59 ~ ~ 261 233 207 122 122 ~ ~ 136 62 73 33 33 ~ ~ 93 73 240 270 142 ~ ~ 192 ~ 146 166 133 138.14 270.00 22.00
4 ~ ~ 98 133 174 131 194 ~ ~ 79 132 187 83 141 ~ ~ 105 189 195 181 262 ~ ~ ~ 166 119 223 130 ~ ~ ~ 153.79 262.00 19.00
5 ~ 37 86 139 116 ~ ~ ~ 87 237 154 50 ~ ~ 120 133 140 152 122 ~ ~ 191 151 180 172 108 ~ ~ ~ 310 105 139.50 310.00 20.00
6 96 87 ~ ~ 187 151 81 201 50 ~ ~ 137 86 120 51 92 ~ ~ 169 98 249 196 148 ~ ~ ~ 206 58 115 71 ~ 126.14 249.00 21.00
7 ~ ~ 121 16 ~ ~ ~ ~ ~ 54 52 62 27 22 ~ ~ 127 120 156 187 133 ~ ~ 177 227 227 108 71 ~ ~ 200 115.94 227.00 18.00
8 240 152 137 131 ~ ~ 310 66 216 294 268 ~ ~ 305 270 284 222 262 ~ ~ 33 179 34 126 180 ~ ~ 227 289 184 114 196.65 310.00 23.00
9 169 ~ ~ 109 169 115 154 114 ~ ~ 157 136 118 129 56 ~ ~ 91 70 83 95 145 ~ ~ 188 129 179 ~ 42 ~ ~ 122.40 188.00 20.00
10 ~ 300 55 112 153 184 ~ ~ 114 120 174 365 294 ~ ~ 261 221 212 354 90 ~ ~ 178 210 194 195 135 ~ ~ ~ 243 198.29 365.00 21.00
11 105 185 39 ~ ~ 131 291 191 282 174 ~ ~ 121 128 238 208 ~ ~ ~ 138 271 204 421 282 ~ ~ 218 192 165 93 ~ 194.14 421.00 21.00
12 111 ~ ~ 184 133 130 131 202 ~ ~ 223 213 121 87 177 ~ ~ 78 203 38 82 105 ~ ~ ~ ~ 28 140 126 ~ ~ 132.21 223.00 19.00

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 4 7 19 12 13 4 1 64 60 56 49 30 18 5 1 472
REL. 6.2 6.2 10.9 29.6 18.7 20.3 6.2 1.5 100.0 93.8 87.5 76.6 46.9 28.1 7.8 1.611.2
ID 6 6 10 59 93 507 781 976 2442
ABS. 0 5 12 19 17 6 1 0 60 60 55 43 24 7 1 0 310
REL. 0.0 8.3 20.0 31.6 28.3 10.0 1.6 0.0 100.0 100.0 91.7 71.7 40.0 11.7 1.7 0.0 30.5
ID 0 8 20 63 141 250 208 0 691
ABS. 4 7 5 17 14 12 2 0 61 57 50 45 28 14 2 0 310
REL. 6.5 11.4 8.1 27.8 22.9 19.6 3.2 0.0100.0 93.4 82.0 73.8 45.9 23.0 3.3 0.0 7.8
ID 6 11 8 55 114 491 409 0 1098
ABS. 1 3 5 17 13 19 2 1 61 60 57 52 35 22 3 1 421
REL 1.6 4.9 8.1 27.8 21.3 31.1 3.2 1.6100.0 98.4 93.4 85.2 57.4 36.1 4.9 1.623.11
ID 1 4 8 55 106 778 409 1024 2390
Year
ABS. 9 19 29 72 56 50 9 2 246 237 218 189 117 61 11 2 472
REL. 3.6 7.7 11.7 29.2 22.7 20.3 3.6 0.8100.0 96.3 88.6 76.8 47.6 24.8 4.5 0.8 11.2
ID 3 7 11 58 113 508 457 508 1669

Note:

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