Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:WD-wind direction
Station:1031 - Nadlesi
Code:CZSOCMNAD
Institution:Czech Hydrometeorological Institute
Region:Zapadocesky
District:Sokolov
IHd: 150
Measure method:optoelectronic method
Unit:deg

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 131 ~ 240 236 ~ ~ ~ 259 ~ 115 ~ 244 246 230 216 155 ~ ~ ~ ~ ~ 210 241 271 231 234 238 173 239 226 164 214.88 270.50 20.00
2 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
3 ~ ~ ~ ~ ~ ~ ~ 179 218 250 189 127 147 251 286 84 132 148 257 263 196 235 248 186 136 229 147 283 275 228 154 202.04 286.33 24.00
4 129 132 256 254 245 240 260 277 228 245 251 208 228 195 248 271 261 252 213 200 198 221 163 267 160 100 170 249 158 227 ~ 216.87 276.56 30.00
5 202 107 205 95 101 121 113 258 216 227 245 241 247 257 291 163 93 99 150 221 173 259 227 224 245 192 118 176 206 232 266 192.52 290.96 31.00
6 137 177 220 231 205 225 200 251 221 144 272 146 99 109 94 118 216 276 244 229 289 280 247 161 98 144 178 231 212 260 ~ 197.20 288.79 30.00
7 246 231 163 142 206 250 289 237 57 80 89 143 244 249 243 261 235 132 153 236 249 251 272 248 136 65 111 105 107 120 109 182.40 288.58 31.00
8 114 113 119 122 203 221 202 217 200 241 269 237 230 213 243 213 216 193 238 250 288 208 137 197 122 185 239 128 118 181 263 197.42 287.50 31.00
9 278 145 109 107 118 168 225 154 146 116 122 128 125 148 133 240 202 143 102 162 230 226 206 208 196 225 191 231 216 215 ~ 173.85 278.42 30.00
10 217 181 230 238 259 259 238 239 252 254 247 251 217 259 239 127 108 99 101 100 101 105 154 133 188 240 248 260 177 139 214 195.95 260.10 31.00
11 ~ 244 214 111 146 242 249 269 184 66 74 95 223 162 99 168 231 234 222 265 180 233 263 258 279 257 257 192 233 277 ~ 204.38 279.21 29.00
12 243 228 232 233 241 225 229 211 208 230 181 216 215 220 263 251 220 250 235 229 190 128 117 122 207 203 192 216 231 216 263 214.35 263.35 31.00

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. 0 1 8 11 24 0 0 0 441 44 43 35 24 0 0 0 286
REL. 0.0 2.2 18.1 25.0 54.5 0.0 0.0 0.0 100.0 100.0 97.7 79.5 54.5 0.0 0.0 0.015.3
ID 0 2 18 50 272 0 0 0 343
ABS. 0 7 14 29 41 0 0 0 91 91 84 70 41 0 0 0 291
REL. 0.0 7.6 15.3 31.8 45.0 0.0 0.0 0.0 100.0 100.0 92.3 76.9 45.1 0.0 0.0 0.0 15.5
ID 0 7 15 63 225 0 0 0 312
ABS. 0 4 30 27 31 0 0 0 92 92 88 58 31 0 0 0 289
REL. 0.0 4.3 32.6 29.3 33.6 0.0 0.0 0.0100.0 100.0 95.7 63.0 33.7 0.0 0.0 0.0 7.7
ID 0 4 32 58 168 0 0 0 264
ABS. 0 6 12 28 45 0 0 0 91 91 85 73 45 0 0 0 279
REL 0.0 6.5 13.1 30.7 49.4 0.0 0.0 0.0100.0 100.0 93.4 80.2 49.5 0.0 0.0 0.025.11
ID 0 6 13 61 247 0 0 0 328
Year
ABS. 0 18 64 95 141 0 0 0 318 318 300 236 141 0 0 0 291
REL. 0.0 5.6 20.1 29.8 44.3 0.0 0.0 0.0100.0 100.0 94.3 74.2 44.3 0.0 0.0 0.0 15.5
ID 0 5 20 59 221 0 0 0 307

Note:

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