Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 576 - Decin-OHS
Code:CZDCHSDPS
Institution:Public Health Service
Region:Severocesky
District:Decin
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 91 179 141 225 231 214 124 138 103 226 140 110 37 83 130 126 79 101 136 157 107 68 89 162 ~ 276 147 ~ 77 103 119 135.08 275.76 29.00
2 ~ 272 110 185 148 179 224 109 76 125 238 98 62 145 234 185 159 112 104 79 183 196 277 184 161 126 60 79 70 ~ ~ 149.33 277.11 28.00
3 128 124 65 56 46 126 137 158 66 176 93 85 167 217 101 186 186 97 89 173 186 123 219 333 175 83 ~ ~ ~ 118 198 139.71 333.21 28.00
4 160 116 138 204 102 86 148 81 94 124 164 193 100 ~ 88 58 141 189 114 73 66 29 19 11 83 63 55 7.60 9 10 ~ 93.99 203.97 29.00
5 21 38 31 38 44 15 7.56 22 29 55 51 28 6.25 7.76 31 32 57 79 60 1.95 7.68 76 43 30 36 23 8.00 10 58 ~ 56 33.36 78.59 30.00
6 28 35 25 13 31 18 17 18 ~ ~ ~ 75 85 119 87 67 53 60 93 96 119 98 91 54 52 78 71 84 88 80 ~ 64.25 118.70 27.00
7 69 59 93 93 63 58 94 58 52 76 75 80 77 78 56 52 100 89 73 70 87 57 46 90 69 71 92 75 54 53 88 72.45 99.60 31.00
8 81 83 61 73 55 70 79 66 65 80 146 ~ ~ ~ 99 119 98 147 84 74 ~ 127 121 117 136 45 48 155 138 165 128 98.55 165.29 27.00
9 130 73 71 149 166 137 121 104 62 52 93 93 104 95 53 57 61 78 78 60 91 104 72 68 121 107 152 92 96 34 ~ 92.50 165.97 30.00
10 39 120 99 124 112 103 74 55 119 61 91 133 189 80 53 118 182 211 170 94 63 115 130 120 150 191 159 100 ~ ~ 225 120.04 225.26 29.00
11 266 198 183 158 98 58 241 234 238 278 180 83 216 296 325 298 166 159 166 226 321 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 208.93 324.70 21.00

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- 33 34- 67 68- 100 101- 150 151- 200 201- 300 301- 400 over 400 33 67 100 150 200 300 400
ABS. 0 7 16 29 20 12 1 0 85 85 78 62 33 13 1 0 333
REL. 0.0 8.2 18.8 34.1 23.5 14.1 1.1 0.0 100.0 100.0 91.8 72.9 38.8 15.3 1.2 0.024.3
ID 0 8 18 68 117 352 147 0 712
ABS. 30 20 22 9 4 1 0 0 86 56 36 14 5 1 0 0 204
REL. 34.8 23.2 25.5 10.4 4.6 1.1 0.0 0.0 100.0 65.1 41.9 16.3 5.8 1.2 0.0 0.0 4.4
ID 34 23 25 20 23 29 0 0 156
ABS. 0 24 42 18 4 0 0 0 88 88 64 22 4 0 0 0 166
REL. 0.0 27.2 47.7 20.4 4.5 0.0 0.0 0.0100.0 100.0 72.7 25.0 4.5 0.0 0.0 0.0 5.9
ID 0 27 47 40 22 0 0 0 138
ABS. 0 6 8 11 12 11 2 0 501 50 44 36 25 13 2 0 325
REL 0.0 12.0 16.0 22.0 24.0 22.0 4.0 0.0100.0 100.0 88.0 72.0 50.0 26.0 4.0 0.015.11
ID 0 12 16 44 120 550 500 0 1242
Year
ABS. 30 57 88 67 40 24 3 0 309 279 222 134 67 27 3 0 333
REL. 9.7 18.4 28.4 21.6 12.9 7.7 0.9 0.0100.0 90.3 71.8 43.4 21.7 8.7 1.0 0.0 24.3
ID 9 18 28 43 64 194 121 0 480

Note:

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