Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
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 ~ 136 ~ ~ 85 197 162 196 240 ~ ~ 140 181 292 250 130 ~ ~ 190 161 163 150 185 ~ ~ 839 ~ ~ 907 180 ~ 251.79 907.00 19.00
2 ~ 254 405 ~ 180 638 ~ ~ 468 ~ 62 ~ ~ ~ ~ ~ 461 296 206 150 ~ ~ 272 228 284 77 97 ~ ~ ~ ~ 271.87 638.00 15.00
3 ~ 138 113 111 108 130 ~ ~ 171 241 82 105 247 ~ ~ 202 154 120 146 152 ~ ~ 264 165 136 177 161 ~ ~ 76 137 151.64 264.00 22.00
4 189 131 96 ~ ~ 103 98 160 97 84 ~ ~ ~ 141 115 207 79 ~ ~ 174 129 97 84 54 ~ ~ 39 57 45 21 ~ 104.76 207.00 21.00
5 ~ ~ ~ 104 95 109 129 ~ ~ ~ 50 69 53 102 77 ~ ~ 102 189 184 182 56 ~ ~ 123 396 145 81 106 ~ ~ 123.79 396.00 19.00
6 131 93 134 99 77 ~ ~ ~ 149 91 152 32 ~ ~ 133 100 103 136 126 ~ ~ 132 201 264 151 122 ~ ~ 226 179 ~ 134.81 264.00 21.00
7 163 363 203 ~ ~ ~ 148 59 160 90 ~ ~ 93 149 58 158 147 ~ ~ 102 74 100 92 129 ~ ~ 70 28 139 56 49 119.55 363.00 22.00
8 ~ ~ 238 178 184 219 163 ~ ~ 130 147 139 120 152 ~ ~ 160 122 99 132 84 ~ ~ 159 185 187 222 153 ~ ~ 185 159.90 238.00 21.00
9 222 184 55 114 ~ ~ 101 111 51 82 105 ~ ~ 84 150 226 158 214 ~ ~ 118 158 189 162 165 ~ ~ 161 202 186 ~ 145.36 226.00 22.00
10 349 154 ~ ~ 142 121 495 249 150 ~ ~ 109 164 161 219 133 ~ ~ 143 159 144 253 125 ~ ~ 135 37 ~ ~ 195 ~ 181.85 495.00 20.00
11 ~ 115 ~ 255 173 ~ ~ ~ 199 585 189 164 105 ~ ~ 186 180 109 114 114 ~ ~ 325 443 224 239 225 ~ ~ 18 ~ 208.53 585.00 19.00
12 28 125 93 222 ~ ~ 193 115 79 203 14 ~ ~ 137 153 203 315 219 ~ ~ 278 983 691 ~ ~ ~ ~ 104 103 61 118 211.29 983.00 21.00

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 1 5 15 16 13 0 6 561 56 55 50 35 19 6 6 907
REL. 0.0 1.7 8.9 26.7 28.5 23.2 0.0 10.7 100.0 100.0 98.2 89.3 62.5 33.9 10.7 10.729.1
ID 0 1 8 53 142 580 0 6696 7483
ABS. 2 7 16 22 9 4 1 0 61 59 52 36 14 5 1 0 396
REL. 3.2 11.4 26.2 36.0 14.7 6.5 1.6 0.0 100.0 96.7 85.2 59.0 23.0 8.2 1.6 0.0 26.5
ID 3 11 26 72 73 163 204 0 555
ABS. 1 6 10 18 21 8 1 0 65 64 58 48 30 9 1 0 363
REL. 1.5 9.2 15.3 27.6 32.3 12.3 1.5 0.0100.0 98.5 89.2 73.8 46.2 13.8 1.5 0.0 2.7
ID 1 9 15 55 161 307 192 0 743
ABS. 3 2 2 20 13 12 3 5 60 57 55 53 33 20 8 5 983
REL 5.0 3.3 3.3 33.3 21.6 20.0 5.0 8.3100.0 95.0 91.7 88.3 55.0 33.3 13.3 8.322.12
ID 5 3 3 66 108 500 625 5208 6520
Year
ABS. 6 16 33 75 59 37 5 11 242 236 220 187 112 53 16 11 983
REL. 2.4 6.6 13.6 30.9 24.3 15.2 2.0 4.5100.0 97.5 90.9 77.3 46.3 21.9 6.6 4.522.12
ID 2 6 13 61 121 382 258 2840 3688

Note:

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