Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 437 - Pha5-Svornosti
Code:CZ05HSSVO
Institution:Public Health Service
Region:Hlavni mesto Praha
District:Praha 5
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ ~ 157 229 161 168 426 ~ ~ 278 261 238 351 120 ~ ~ 237 154 164 207 186 ~ ~ 148 130 58 239 38 ~ ~ 197.50 426.00 20.00
2 67 128 35 59 47 ~ ~ 81 75 103 110 136 ~ ~ 292 295 130 206 136 ~ ~ 138 129 212 222 294 ~ ~ ~ ~ ~ 144.75 295.00 20.00
3 128 139 247 200 106 ~ ~ 284 273 221 183 244 ~ ~ 308 290 148 83 38 ~ ~ 226 172 324 370 164 ~ ~ 75 121 154 195.57 370.00 23.00
4 162 96 ~ ~ ~ 252 184 172 171 ~ ~ ~ 205 183 205 82 ~ ~ 149 187 185 237 309 ~ ~ 173 154 258 231 178 ~ 188.65 309.00 20.00
5 ~ ~ 210 119 206 56 313 ~ ~ 327 275 351 361 279 ~ ~ 149 111 231 147 54 ~ ~ 148 116 50 107 165 ~ ~ 48 182.05 361.00 21.00
6 102 139 225 204 ~ ~ 129 283 214 119 109 ~ ~ 107 171 223 157 95 ~ ~ 108 129 193 98 154 ~ ~ 243 373 327 ~ 177.36 373.00 22.00
7 338 139 ~ ~ ~ ~ 128 241 124 ~ ~ 70 110 60 158 146 ~ ~ 112 138 90 78 46 ~ ~ 131 142 106 96 171 ~ 131.20 338.00 20.00
8 ~ ~ 64 172 181 117 ~ ~ 128 123 148 311 88 ~ ~ ~ ~ ~ 329 270 ~ ~ 270 319 128 282 228 ~ ~ ~ ~ 197.38 329.00 16.00
9 165 318 181 ~ ~ 175 242 334 317 281 ~ ~ 348 154 24 128 147 ~ ~ 108 182 219 171 166 ~ ~ 164 152 111 21 ~ 186.73 348.00 22.00
10 20 ~ ~ 154 95 ~ 152 110 ~ ~ 150 92 258 274 215 ~ ~ 227 332 89 125 145 ~ ~ 226 275 ~ ~ 141 ~ ~ 171.11 332.00 18.00
11 124 256 229 227 289 ~ ~ 213 163 ~ ~ 88 ~ ~ 157 173 304 460 231 ~ ~ 100 178 183 151 100 ~ ~ 192 209 ~ 201.35 460.00 20.00
12 137 166 71 ~ ~ 225 191 192 243 183 ~ ~ 146 200 301 387 301 ~ ~ 254 287 503 351 ~ ~ ~ 174 221 122 195 159 227.68 503.00 22.00

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. 0 6 5 16 11 20 4 1 63 63 57 52 36 25 5 1 426
REL. 0.0 9.5 7.9 25.3 17.4 31.7 6.3 1.5 100.0 100.0 90.5 82.5 57.1 39.7 7.9 1.68.1
ID 0 9 7 50 87 793 793 992 2734
ABS. 0 4 4 16 15 17 7 0 63 63 59 55 39 24 7 0 373
REL. 0.0 6.3 6.3 25.3 23.8 26.9 11.1 0.0 100.0 100.0 93.7 87.3 61.9 38.1 11.1 0.0 29.6
ID 0 6 6 50 119 674 1388 0 2246
ABS. 2 3 5 19 13 8 8 0 581 56 53 48 29 16 8 0 348
REL. 3.4 5.1 8.6 32.7 22.4 13.7 13.7 0.0100.0 96.6 91.4 82.8 50.0 27.6 13.8 0.0 13.9
ID 3 5 8 65 112 344 1724 0 2263
ABS. 1 0 7 9 17 18 6 2 60 59 59 52 43 26 8 2 503
REL 1.6 0.0 11.6 15.0 28.3 30.0 10.0 3.3100.0 98.3 98.3 86.7 71.7 43.3 13.3 3.322.12
ID 1 0 11 30 141 750 1250 2083 4268
Year
ABS. 3 13 21 60 56 63 25 3 244 241 228 207 147 91 28 3 503
REL. 1.2 5.3 8.6 24.5 22.9 25.8 10.2 1.2100.0 98.8 93.4 84.8 60.2 37.3 11.5 1.222.12
ID 1 5 8 49 114 645 1280 768 2873

Note:

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