Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
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 ~ ~ ~ 134 391 419 227 103 ~ ~ 139 141 169 155 86 ~ ~ 74 118 75 79 87 ~ ~ 121 101 85 211 72 ~ ~ 149.35 419.00 20.00
2 74 76 173 132 136 ~ ~ 101 168 238 132 59 ~ ~ 282 196 190 ~ 188 ~ ~ 100 165 208 179 168 ~ ~ ~ ~ ~ 156.05 282.00 19.00
3 45 189 65 282 169 ~ ~ 180 442 341 208 209 ~ ~ 168 195 188 175 166 ~ ~ 170 127 216 263 48 ~ ~ 215 337 370 207.30 442.00 23.00
4 189 120 ~ ~ ~ 179 158 79 ~ ~ ~ 107 105 ~ 116 167 ~ ~ 269 263 228 250 244 ~ ~ 146 101 139 168 187 ~ 169.21 269.00 19.00
5 ~ ~ 20 12 17 31 19 ~ ~ 54 46 45 121 93 ~ ~ 29 24 20 39 37 ~ ~ 130 260 207 147 153 ~ ~ 197 81.00 260.00 21.00
6 137 103 150 76 ~ ~ 181 118 103 106 160 ~ ~ 104 125 104 129 119 ~ ~ 242 242 135 80 123 ~ ~ 113 146 134 ~ 133.18 242.00 22.00
7 235 102 ~ ~ ~ ~ 198 211 111 ~ ~ 125 81 111 158 97 ~ ~ 280 136 170 148 113 ~ ~ 220 202 105 107 174 ~ 154.20 280.00 20.00
8 ~ 95 127 92 96 133 ~ ~ 169 27 147 186 183 ~ ~ 202 190 157 115 156 ~ ~ 100 131 154 57 37 ~ ~ 250 289 140.59 289.00 22.00
9 209 240 150 ~ ~ 210 98 215 184 127 ~ ~ 133 226 148 156 94 ~ ~ 64 135 177 238 210 ~ ~ 141 129 90 155 ~ 160.41 240.00 22.00
10 82 ~ ~ 91 40 156 101 67 ~ ~ 173 99 251 ~ 247 ~ ~ 119 30 30 29 44 ~ ~ 141 146 78 ~ 73 ~ ~ 105.11 251.00 19.00
11 258 296 292 178 88 ~ ~ 235 140 60 128 86 ~ ~ 154 119 157 233 113 ~ ~ 135 245 289 232 200 ~ ~ ~ ~ ~ 181.90 296.00 20.00
12 94 42 141 ~ ~ 47 43 115 30 93 ~ ~ 13 25 177 164 38 ~ ~ 110 211 143 69 ~ ~ ~ 161 145 187 113 97 102.64 211.00 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 4 10 12 19 11 4 2 62 62 58 48 36 17 6 2 442
REL. 0.0 6.4 16.1 19.3 30.6 17.7 6.4 3.2 100.0 100.0 93.5 77.4 58.1 27.4 9.7 3.29.3
ID 0 6 16 38 153 443 806 2016 3480
ABS. 8 5 4 26 10 9 0 0 62 54 49 45 19 9 0 0 269
REL. 12.9 8.0 6.4 41.9 16.1 14.5 0.0 0.0 100.0 87.1 79.0 72.6 30.6 14.5 0.0 0.0 19.4
ID 12 8 6 83 80 362 0 0 554
ABS. 1 3 9 21 15 15 0 0 64 63 60 51 30 15 0 0 289
REL. 1.5 4.6 14.0 32.8 23.4 23.4 0.0 0.0100.0 98.4 93.8 79.7 46.9 23.4 0.0 0.0 31.8
ID 1 4 14 65 117 585 0 0 789
ABS. 6 7 12 15 10 11 0 0 61 55 48 36 21 11 0 0 296
REL 9.8 11.4 19.6 24.5 16.3 18.0 0.0 0.0100.0 90.2 78.7 59.0 34.4 18.0 0.0 0.0 2.11
ID 9 11 19 49 81 450 0 0 622
Year
ABS. 15 19 35 74 54 46 4 2 249 234 215 180 106 52 6 2 442
REL. 6.0 7.6 14.0 29.7 21.6 18.4 1.6 0.8100.0 94.0 86.3 72.3 42.6 20.9 2.4 0.8 9.3
ID 6 7 14 59 108 461 200 502 1360

Note:

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