Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:WD-wind direction
Station:1324 - Plzen-Lochotin
Code:CZPMPZPLL
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
1 110 110 201 226 196 210 232 225 150 52 137 211 222 225 226 226 ~ 188 217 110 171 190 226 224 226 214 239 155 139 198 175 187.71 239.02 30.00
2 225 224 224 226 249 239 218 218 110 182 88 141 134 98 226 229 243 234 222 240 227 226 242 240 228 221 210 225 ~ ~ ~ 206.79 249.13 28.00
3 227 224 163 106 229 203 222 159 190 200 144 35 44 83 126 60 65 81 239 254 207 226 228 158 118 153 47 151 148 231 90 155.30 254.08 31.00
4 75 88 187 227 227 230 247 187 204 222 240 223 232 187 243 155 ~ ~ 220 161 211 196 119 156 77 56 85 88 48 178 ~ 170.32 247.19 28.00
5 189 48 95 63 60 88 103 196 ~ 217 232 230 200 235 289 73 65 79 113 86 101 235 217 178 206 113 43 190 136 200 142 147.42 288.56 30.00
6 83 173 199 220 158 220 121 215 138 49 168 54 47 68 57 81 186 259 225 219 247 283 84 69 74 151 189 208 165 225 ~ 154.43 283.06 30.00
7 224 192 152 87 136 243 210 168 31 45 45 117 225 ~ 240 199 112 114 155 223 230 245 213 155 71 41 40 38 49 51 54 136.80 244.67 30.00
8 64 46 59 75 167 164 185 187 190 226 223 79 115 211 226 227 191 216 233 239 161 52 64 97 88 152 116 69 56 111 178 144.06 239.49 31.00
9 215 47 55 84 87 152 227 93 92 58 55 99 60 86 94 216 128 85 63 138 184 210 211 180 138 215 191 224 225 225 ~ 137.84 226.94 30.00
10 216 218 227 222 239 244 242 228 225 229 212 158 104 244 68 113 61 54 56 60 76 99 139 108 169 225 225 212 76 95 197 162.64 244.40 31.00
11 184 184 54 33 114 195 224 210 35 32 30 66 226 128 54 168 226 210 110 210 97 225 186 197 223 209 214 129 216 222 ~ 153.77 226.36 30.00
12 226 229 227 225 233 225 228 227 227 223 214 227 227 225 217 220 224 230 230 256 199 73 117 117 160 ~ 151 189 234 227 ~ 207.12 256.31 29.00

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 13 35 30 0 0 0 89 86 78 65 30 0 0 0 254
REL. 3.3 8.9 14.6 39.3 33.7 0.0 0.0 0.0 100.0 96.6 87.6 73.0 33.7 0.0 0.0 0.020.3
ID 3 8 14 78 168 0 0 0 274
ABS. 5 22 9 37 15 0 0 0 88 83 61 52 15 0 0 0 289
REL. 5.6 25.0 10.2 42.0 17.0 0.0 0.0 0.0 100.0 94.3 69.3 59.1 17.0 0.0 0.0 0.0 15.5
ID 5 25 10 84 85 0 0 0 210
ABS. 9 27 10 34 11 0 0 0 91 82 55 45 11 0 0 0 245
REL. 9.8 29.6 10.9 37.3 12.0 0.0 0.0 0.0100.0 90.1 60.4 49.5 12.1 0.0 0.0 0.0 22.7
ID 9 29 10 74 60 0 0 0 185
ABS. 4 14 10 34 28 0 0 0 90 86 72 62 28 0 0 0 256
REL 4.4 15.5 11.1 37.7 31.1 0.0 0.0 0.0100.0 95.6 80.0 68.9 31.1 0.0 0.0 0.020.12
ID 4 15 11 75 155 0 0 0 262
Year
ABS. 21 71 42 140 84 0 0 0 358 337 266 224 84 0 0 0 289
REL. 5.8 19.8 11.7 39.1 23.4 0.0 0.0 0.0100.0 94.1 74.3 62.6 23.5 0.0 0.0 0.0 15.5
ID 5 19 11 78 117 0 0 0 232

Note:

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