Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:WD-wind direction
Station:1325 - Plzen-Skvrnany
Code:CZPMPZPLS
Institution:Mun. Authority of the town Plzen
Region:Zapadocesky
District:Plzen-mesto
IHd: 150
Measure method:optoelectronic method
Unit:deg

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 137 181 197 231 215 184 207 236 160 37 ~ 226 237 237 230 234 188 180 250 165 236 246 225 227 234 255 259 110 78 223 188 200.40 258.60 30.00
2 234 244 253 261 ~ 264 245 244 295 283 120 58 93 121 239 258 ~ 255 241 249 233 245 283 256 254 236 239 219 ~ ~ ~ 227.71 294.81 26.00
3 241 239 162 110 239 208 268 197 203 199 160 37 51 62 113 35 67 84 267 289 220 239 246 186 172 202 85 181 189 252 122 171.74 289.17 31.00
4 58 94 195 240 238 227 272 193 244 259 265 228 252 210 307 163 273 271 211 240 247 214 184 175 127 47 122 113 78 245 ~ 199.70 307.19 30.00
5 201 59 150 37 40 89 137 223 209 227 238 241 252 245 263 107 44 70 142 74 90 250 258 249 243 171 53 182 208 211 188 166.13 262.63 31.00
6 123 198 243 235 204 258 134 240 207 33 183 88 72 86 75 100 209 231 231 219 278 151 113 126 71 171 200 240 223 227 ~ 172.29 278.17 30.00
7 225 276 201 89 148 273 189 201 24 45 37 161 238 ~ 258 250 136 107 168 247 251 273 200 195 92 42 28 36 ~ 66 84 156.47 275.96 29.00
8 80 70 58 74 194 206 189 196 208 227 239 98 188 210 253 231 216 214 255 253 211 120 119 159 80 185 179 40 51 126 237 166.59 254.52 31.00
9 205 38 67 82 108 160 232 133 143 80 60 139 83 108 111 258 148 99 59 157 185 212 216 197 197 212 181 232 226 229 ~ 151.88 258.06 30.00
10 235 191 225 222 250 272 248 248 261 251 229 302 173 266 131 152 64 47 50 58 67 123 171 133 171 257 246 236 135 107 206 184.67 302.23 31.00
11 245 164 77 38 143 225 226 272 39 29 25 64 295 143 41 193 242 232 127 221 119 235 249 220 238 226 211 175 240 239 ~ 173.04 294.98 30.00
12 242 255 248 237 249 235 243 222 193 221 209 237 246 239 255 264 235 235 246 274 283 120 194 148 177 215 185 172 256 240 ~ 225.86 282.88 30.00

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- 50 51- 100 101- 150 151- 225 226- 300 301- 450 451- 600 over 600 50 100 150 225 300 450 600
ABS. 3 8 7 25 44 0 0 0 87 84 76 69 44 0 0 0 295
REL. 3.4 9.1 8.0 28.7 50.5 0.0 0.0 0.0 100.0 96.6 87.4 79.3 50.6 0.0 0.0 0.09.2
ID 3 9 8 57 252 0 0 0 331
ABS. 5 14 12 26 33 1 0 0 91 86 72 60 34 1 0 0 307
REL. 5.4 15.3 13.1 28.5 36.2 1.0 0.0 0.0 100.0 94.5 79.1 65.9 37.4 1.1 0.0 0.0 15.4
ID 5 15 13 57 181 27 0 0 300
ABS. 8 18 13 31 20 0 0 0 90 82 64 51 20 0 0 0 276
REL. 8.8 20.0 14.4 34.4 22.2 0.0 0.0 0.0100.0 91.1 71.1 56.7 22.2 0.0 0.0 0.0 2.7
ID 8 20 14 68 111 0 0 0 223
ABS. 7 5 11 24 43 1 0 0 91 84 79 68 44 1 0 0 302
REL 7.6 5.4 12.0 26.3 47.2 1.0 0.0 0.0100.0 92.3 86.8 74.7 48.4 1.1 0.0 0.012.10
ID 7 5 12 52 236 27 0 0 341
Year
ABS. 23 45 43 106 140 2 0 0 359 336 291 248 142 2 0 0 307
REL. 6.4 12.5 11.9 29.5 38.9 0.5 0.0 0.0100.0 93.6 81.1 69.1 39.6 0.6 0.0 0.0 15.4
ID 6 12 11 59 194 13 0 0 298

Note:

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