Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:WD-wind direction
Station:1001 - Chomutov
Code:CZCVCMCHO
Institution:Czech Hydrometeorological Institute
Region:Severocesky
District:Chomutov
IHd: 150
Measure method:optoelectronic method
Unit:deg

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 106 157 126 239 170 255 263 252 157 92 149 228 171 254 237 198 172 171 145 159 220 186 199 100 231 242 220 103 57 62 190 177.71 263.29 31.00
2 196 257 269 263 300 284 226 210 219 254 91 41 32 105 228 253 138 259 161 250 227 252 175 229 280 163 237 273 ~ ~ ~ 209.71 299.98 28.00
3 273 281 215 135 259 237 189 192 127 82 102 96 172 172 69 132 124 89 149 115 240 237 295 275 212 246 92 62 129 227 181 174.34 295.23 31.00
4 177 172 223 207 274 263 290 148 237 262 269 219 238 185 267 80 255 281 166 224 170 240 175 199 158 85 228 272 246 243 ~ 215.01 289.94 30.00
5 219 153 171 72 83 101 76 214 271 210 242 260 262 265 285 189 84 97 157 89 114 248 298 237 218 183 197 184 181 221 207 186.70 297.94 31.00
6 182 168 276 229 232 218 208 262 265 104 220 140 93 65 66 168 243 280 223 246 143 211 245 149 142 159 158 266 243 222 ~ 194.14 280.17 30.00
7 250 278 238 79 202 203 124 71 53 65 76 136 253 275 280 237 244 194 225 237 282 291 207 243 183 45 52 95 151 162 148 179.98 290.73 31.00
8 171 161 191 185 216 236 220 249 249 228 258 207 262 222 286 240 289 226 258 293 210 142 214 226 99 184 117 92 154 196 238 210.23 292.63 31.00
9 154 49 72 87 111 128 258 200 208 159 136 207 198 219 169 232 159 108 80 113 244 229 161 247 121 217 255 206 229 220 ~ 172.54 258.48 30.00
10 224 229 238 234 260 271 266 221 226 243 252 292 186 266 167 193 78 78 76 83 85 90 139 80 188 245 269 251 197 217 233 196.04 292.38 31.00
11 188 121 256 71 86 198 247 171 44 55 62 98 239 117 112 148 242 245 148 141 238 214 157 242 215 223 157 130 193 191 ~ 164.88 255.60 30.00
12 245 263 232 231 285 220 240 246 205 220 202 243 241 260 ~ 259 224 254 257 217 227 133 76 90 119 136 200 202 277 236 159 213.31 285.19 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. 2 10 16 26 36 0 0 0 90 88 78 62 36 0 0 0 300
REL. 2.2 11.1 17.7 28.8 40.0 0.0 0.0 0.0 100.0 97.8 86.7 68.9 40.0 0.0 0.0 0.05.2
ID 2 11 17 57 200 0 0 0 288
ABS. 0 11 8 37 35 0 0 0 91 91 80 72 35 0 0 0 298
REL. 0.0 12.0 8.7 40.6 38.4 0.0 0.0 0.0 100.0 100.0 87.9 79.1 38.5 0.0 0.0 0.0 23.5
ID 0 12 8 81 192 0 0 0 294
ABS. 2 12 11 33 34 0 0 0 92 90 78 67 34 0 0 0 293
REL. 2.1 13.0 11.9 35.8 36.9 0.0 0.0 0.0100.0 97.8 84.8 72.8 37.0 0.0 0.0 0.0 20.8
ID 2 13 11 71 184 0 0 0 283
ABS. 1 14 11 27 38 0 0 0 91 90 76 65 38 0 0 0 292
REL 1.0 15.3 12.0 29.6 41.7 0.0 0.0 0.0100.0 98.9 83.5 71.4 41.8 0.0 0.0 0.012.10
ID 1 15 12 59 208 0 0 0 296
Year
ABS. 5 47 46 123 143 0 0 0 364 359 312 266 143 0 0 0 300
REL. 1.3 12.9 12.6 33.7 39.2 0.0 0.0 0.0100.0 98.6 85.7 73.1 39.3 0.0 0.0 0.0 5.2
ID 1 12 12 67 196 0 0 0 290

Note:

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