Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:WD-wind direction
Station:1028 - Nepomysl
Code:CZLNCMNEP
Institution:Czech Hydrometeorological Institute
Region:Ustecky
District:Louny
IHd: 150
Measure method:optoelectronic method
Unit:deg

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 251 236 137 247 207 131 121 168 152 218 166 201 174 200 245 234 132 183 106 88 108 205 202 161 218 185 160 151 184 200 254 181.46 254.19 31.00
2 204 153 220 170 148 133 218 167 178 184 202 166 230 189 127 184 255 255 263 274 238 201 211 182 221 168 190 236 ~ ~ ~ 198.83 273.67 28.00
3 128 218 187 186 169 153 242 148 194 207 221 230 244 275 205 83 56 224 308 151 64 155 161 188 67 56 115 119 127 250 187 171.53 308.04 31.00
4 161 158 203 174 201 141 185 234 176 178 239 304 330 276 245 282 252 245 247 60 271 304 165 220 173 254 199 193 225 156 ~ 214.99 329.85 30.00
5 151 189 170 269 299 303 300 272 144 144 288 179 115 153 134 135 132 125 106 187 187 181 156 142 136 206 280 260 226 236 222 194.43 303.28 31.00
6 252 199 256 238 226 174 190 247 134 243 251 254 177 226 185 219 252 297 301 154 257 265 241 219 227 160 167 269 260 171 ~ 223.63 301.10 30.00
7 234 229 243 180 136 125 132 138 157 137 136 119 143 155 230 228 190 162 188 295 275 148 134 161 285 214 200 162 170 245 253 187.13 294.62 31.00
8 252 140 181 182 223 181 169 170 171 200 212 161 204 152 125 187 111 166 232 215 300 294 172 172 165 176 237 253 209 198 160 192.52 299.90 31.00
9 284 262 247 255 290 269 271 238 147 98 68 127 84 226 247 293 244 259 213 183 219 216 144 276 251 199 192 210 191 187 ~ 213.01 292.98 30.00
10 163 244 263 273 185 ~ ~ ~ 237 280 313 206 172 193 186 135 65 194 204 81 229 217 ~ ~ ~ ~ ~ ~ ~ ~ ~ 202.13 312.79 19.00
11 201 206 176 156 177 136 133 140 298 209 182 242 233 142 223 280 106 226 301 254 250 263 285 257 142 231 114 235 210 121 ~ 204.29 301.08 30.00
12 122 108 118 138 195 226 ~ ~ ~ ~ ~ ~ ~ ~ 256 315 290 256 240 246 225 215 263 221 231 240 215 244 223 265 268 222.53 314.67 23.00

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 6 14 51 18 1 0 0 90 90 84 70 19 1 0 0 308
REL. 0.0 6.6 15.5 56.6 20.0 1.1 0.0 0.0 100.0 100.0 93.3 77.8 21.1 1.1 0.0 0.019.3
ID 0 6 15 113 100 27 0 0 263
ABS. 0 1 12 37 36 5 0 0 91 91 90 78 41 5 0 0 330
REL. 0.0 1.0 13.1 40.6 39.5 5.4 0.0 0.0 100.0 100.0 98.9 85.7 45.1 5.5 0.0 0.0 13.4
ID 0 1 13 81 197 137 0 0 430
ABS. 0 3 16 42 31 0 0 0 92 92 89 73 31 0 0 0 300
REL. 0.0 3.2 17.3 45.6 33.6 0.0 0.0 0.0100.0 100.0 96.7 79.3 33.7 0.0 0.0 0.0 21.8
ID 0 3 17 91 168 0 0 0 280
ABS. 0 2 13 24 30 3 0 0 72 72 70 57 33 3 0 0 315
REL 0.0 2.7 18.0 33.3 41.6 4.1 0.0 0.0100.0 100.0 97.2 79.2 45.8 4.2 0.0 0.016.12
ID 0 2 18 66 208 104 0 0 400
Year
ABS. 0 12 55 154 115 9 0 0 345 345 333 278 124 9 0 0 330
REL. 0.0 3.4 15.9 44.6 33.3 2.6 0.0 0.0100.0 100.0 96.5 80.6 35.9 2.6 0.0 0.0 13.4
ID 0 3 15 89 166 65 0 0 340

Note:

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