Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 437 - Pha5-Svornosti
Code:CZ05HSSVO
Institution:Public Health Service
Region:Prague
District:Praha 5
IHd: 100
Measure method:triethanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ 74 41 244 ~ ~ 330 277 169 59 396 ~ ~ 241 165 236 71 260 ~ ~ 215 184 25 96 107 ~ ~ 121 144 ~ 453 186.10 453.00 21.00
2 357 ~ ~ 47 125 768 288 158 ~ ~ 115 180 243 159 188 ~ ~ 150 149 100 97 104 ~ ~ ~ 34 166 270 ~ ~ ~ 194.63 768.00 19.00
3 199 ~ ~ 196 236 47 97 76 ~ ~ 330 240 176 107 ~ ~ ~ 181 153 178 264 ~ ~ ~ ~ ~ ~ 165 86 ~ ~ 170.69 330.00 16.00
4 ~ 47 43 42 52 ~ ~ 83 69 67 149 21 ~ ~ 198 279 226 187 189 ~ ~ 189 144 47 45 110 ~ ~ 22 36 ~ 106.90 279.00 21.00
5 ~ 164 71 ~ ~ 25 47 ~ 42 78 ~ ~ 31 28 62 84 ~ ~ ~ ~ ~ 55 94 173 ~ ~ 69 104 226 185 123 92.28 226.00 18.00
6 ~ ~ 280 163 73 69 188 ~ ~ 164 223 152 375 215 ~ ~ 192 118 68 83 80 ~ ~ 93 92 95 197 160 ~ ~ ~ 154.00 375.00 20.00
7 66 512 419 354 ~ ~ ~ 284 294 231 316 214 ~ ~ 154 220 396 358 273 ~ ~ 260 192 138 193 140 ~ ~ 98 91 85 240.36 512.00 22.00
8 117 70 ~ ~ 116 120 170 216 237 ~ ~ 196 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 237 149 205 157 116 ~ 162.00 237.00 13.00
9 ~ 138 121 159 103 191 ~ ~ 118 147 151 165 157 ~ ~ 111 83 166 346 371 ~ ~ 335 342 ~ 178 179 ~ ~ 83 ~ 182.20 371.00 20.00
10 39 259 558 425 ~ ~ 397 494 153 142 65 ~ ~ 255 420 306 365 196 ~ ~ 289 363 79 238 202 ~ ~ ~ 222 102 67 256.18 558.00 22.00
11 150 ~ ~ 96 42 48 408 215 ~ ~ 138 249 223 210 310 ~ ~ 372 114 139 139 194 ~ ~ 329 231 147 187 47 ~ ~ 189.90 408.00 21.00
12 ~ 116 163 79 220 100 ~ ~ 48 171 111 447 85 ~ ~ 61 162 183 284 139 ~ ~ 171 ~ ~ ~ 108 ~ ~ 130 ~ 154.33 447.00 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. 1 5 8 9 15 12 4 2 561 55 50 42 33 18 6 2 768
REL. 1.7 8.9 14.2 16.0 26.7 21.4 7.1 3.5 100.0 98.2 89.3 75.0 58.9 32.1 10.7 3.66.2
ID 1 8 14 32 133 535 892 2232 3851
ABS. 5 11 16 6 14 6 1 0 591 54 43 27 21 7 1 0 375
REL. 8.4 18.6 27.1 10.1 23.7 10.1 1.6 0.0 100.0 91.5 72.9 45.8 35.6 11.9 1.7 0.0 13.6
ID 8 18 27 20 118 254 211 0 659
ABS. 0 1 6 13 14 11 8 2 551 55 54 48 35 21 10 2 512
REL. 0.0 1.8 10.9 23.6 25.4 20.0 14.5 3.6100.0 100.0 98.2 87.3 63.6 38.2 18.2 3.6 2.7
ID 0 1 10 47 127 500 1818 2272 4778
ABS. 0 7 6 13 9 13 7 6 61 61 54 48 35 26 13 6 558
REL 0.0 11.4 9.8 21.3 14.7 21.3 11.4 9.8100.0 100.0 88.5 78.7 57.4 42.6 21.3 9.8 3.10
ID 0 11 9 42 73 532 1434 6147 8252
Year
ABS. 6 24 36 41 52 42 20 10 2311 225 201 165 124 72 30 10 768
REL. 2.5 10.3 15.5 17.7 22.5 18.1 8.6 4.3100.0 97.4 87.0 71.4 53.7 31.2 13.0 4.3 6.2
ID 2 10 15 35 112 454 1082 2705 4419

Note:

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