Detailed overview of ambient air pollution valuis from individual stations


Year: 2000
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 ~ ~ 264 319 502 82 328 ~ ~ 157 276 290 270 272 ~ ~ 225 245 318 405 486 ~ ~ 171 510 223 314 183 ~ ~ 259 290.43 510.00 21.00
2 262 84 148 139 ~ ~ ~ ~ 299 386 294 ~ ~ 294 356 66 166 114 ~ ~ 154 139 156 185 90 ~ ~ 119 163 ~ ~ 190.21 386.00 19.00
3 87 65 49 ~ ~ ~ 162 ~ ~ 189 ~ ~ 319 236 92 32 58 ~ ~ 85 147 31 28 44 ~ ~ 88 78 127 143 ~ 108.42 319.00 19.00
4 ~ ~ 90 132 27 21 21 ~ ~ 62 95 179 95 86 ~ ~ 60 106 195 60 199 ~ ~ ~ 228 330 211 163 ~ ~ ~ 124.21 330.00 19.00
5 ~ 183 70 168 183 ~ ~ ~ 189 83 73 87 ~ ~ 142 101 102 205 171 ~ ~ 198 194 265 156 84 ~ ~ 138 116 92 142.86 265.00 21.00
6 251 164 ~ ~ 170 221 195 384 318 ~ ~ 151 238 168 121 81 ~ ~ 64 69 242 130 240 ~ ~ 130 169 29 146 208 ~ 176.77 384.00 22.00
7 ~ ~ 347 326 ~ ~ ~ ~ ~ 178 164 185 265 235 ~ ~ 217 234 188 154 130 ~ ~ 276 259 ~ 189 226 ~ ~ 200 221.94 347.00 17.00
8 241 73 40 25 ~ ~ 101 117 216 94 67 ~ ~ 122 73 94 76 98 ~ ~ 138 ~ 76 64 78 ~ ~ 76 91 ~ 142 100.10 241.00 21.00
9 92 ~ ~ 85 111 191 224 300 ~ ~ 378 318 ~ 129 81 ~ ~ 136 120 91 98 218 ~ ~ 206 49 114 ~ 162 ~ ~ 163.32 378.00 19.00
10 ~ 293 218 273 220 158 ~ ~ 259 286 196 242 374 ~ ~ 361 242 283 491 352 ~ ~ 277 247 313 279 309 ~ ~ 343 282 286.27 491.00 22.00
11 270 179 234 ~ ~ 161 260 347 298 227 ~ ~ 277 402 258 210 ~ ~ ~ 258 238 ~ ~ 99 ~ ~ 63 164 242 231 ~ 232.53 402.00 19.00
12 191 ~ ~ 346 241 65 271 ~ ~ ~ 28 167 168 142 88 ~ ~ 140 ~ 84 151 192 ~ ~ ~ ~ ~ ~ ~ ~ ~ 162.43 346.00 14.00

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. 3 5 8 8 10 14 7 4 591 56 51 43 35 25 11 4 510
REL. 5.0 8.4 13.5 13.5 16.9 23.7 11.8 6.7 100.0 94.9 86.4 72.9 59.3 42.4 18.6 6.825.1
ID 5 8 13 27 84 593 1483 4237 6452
ABS. 4 4 12 11 18 10 3 0 62 58 54 42 31 13 3 0 384
REL. 6.4 6.4 19.3 17.7 29.0 16.1 4.8 0.0 100.0 93.5 87.1 67.7 50.0 21.0 4.8 0.0 8.6
ID 6 6 19 35 145 403 604 0 1220
ABS. 1 3 16 11 9 13 4 0 571 56 53 37 26 17 4 0 378
REL. 1.7 5.2 28.0 19.2 15.7 22.8 7.0 0.0100.0 98.2 93.0 64.9 45.6 29.8 7.0 0.0 11.9
ID 1 5 28 38 78 570 877 0 1600
ABS. 1 2 3 2 10 27 8 2 551 54 52 49 47 37 10 2 491
REL 1.8 3.6 5.4 3.6 18.1 49.0 14.5 3.6100.0 98.2 94.5 89.1 85.5 67.3 18.2 3.619.10
ID 1 3 5 7 90 1227 1818 2272 5427
Year
ABS. 9 14 39 32 47 64 22 6 2331 224 210 171 139 92 28 6 510
REL. 3.8 6.0 16.7 13.7 20.1 27.4 9.4 2.5100.0 96.1 90.1 73.4 59.7 39.5 12.0 2.6 25.1
ID 3 6 16 27 100 686 1180 1609 3631

Note:

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