Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 805 - Pha10-Vrsovice
Code:CZ10CMVRS
Institution:Czech Hydrometeorological Institute
Region:Prague
District:Praha 10
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 33 35 114 142 207 97 189 197 70 83 88 97 97 155 96 77 133 84 58 37 59 105 90 73 65 29 33 38 63 103 104 92.00 206.73 31.00
2 86 189 191 190 102 148 103 54 33 26 41 43 82 74 98 65 145 77 49 41 45 ~ ~ ~ ~ 40 44 ~ ~ ~ ~ 85.42 191.00 23.00
3 ~ ~ ~ 143 167 89 40 92 60 51 116 217 133 31 53 53 139 87 65 81 75 33 21 19 27 29 57 131 181 105 93 85.20 216.57 28.00
4 86 88 41 51 33 19 36 87 58 44 53 47 41 42 74 71 76 68 65 59 34 76 58 ~ ~ 44 25 40 42 88 ~ 55.23 88.25 28.00
5 51 53 55 27 31 38 40 27 36 35 36 51 70 41 41 56 32 22 18 42 47 39 33 48 22 39 38 57 38 47 36 40.27 70.00 31.00
6 20 40 69 41 32 39 52 35 45 44 45 45 41 41 30 37 53 56 45 42 35 22 19 41 46 47 33 26 25 29 ~ 39.15 68.51 30.00
7 62 75 41 36 29 18 33 59 59 40 66 43 19 10 19 49 49 46 43 30 32 38 48 45 46 44 43 55 57 48 54 43.12 74.67 31.00
8 73 74 51 34 49 51 40 51 74 29 28 41 33 33 34 37 45 44 ~ ~ 54 87 112 63 72 58 63 88 94 96 44 56.94 112.26 29.00
9 37 66 75 86 78 75 76 68 75 74 77 84 73 34 34 53 60 56 108 120 70 66 41 29 53 81 30 40 68 133 ~ 67.36 133.20 30.00
10 106 104 76 66 31 33 44 66 63 53 42 30 67 105 90 149 90 63 49 93 157 142 54 101 60 28 25 36 97 138 123 76.79 156.51 31.00
11 120 46 55 80 45 99 141 80 35 89 118 172 156 170 280 269 110 176 79 105 97 110 102 125 243 177 87 85 111 72 ~ 121.10 279.78 30.00
12 172 166 110 114 55 50 45 50 78 104 221 86 91 59 66 137 112 66 168 227 227 89 64 45 38 40 58 90 65 57 52 96.84 227.29 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- 33 34- 67 68- 100 101- 150 151- 200 201- 300 301- 400 over 400 33 67 100 150 200 300 400
ABS. 11 23 22 16 8 2 0 0 82 71 48 26 10 2 0 0 217
REL. 13.4 28.0 26.8 19.5 9.7 2.4 0.0 0.0 100.0 86.6 58.5 31.7 12.2 2.4 0.0 0.012.3
ID 13 28 26 39 48 60 0 0 217
ABS. 20 58 11 0 0 0 0 0 89 69 11 0 0 0 0 0 88
REL. 22.4 65.1 12.3 0.0 0.0 0.0 0.0 0.0 100.0 77.5 12.4 0.0 0.0 0.0 0.0 0.0 30.4
ID 22 65 12 0 0 0 0 0 100
ABS. 14 49 23 4 0 0 0 0 90 76 27 4 0 0 0 0 133
REL. 15.5 54.4 25.5 4.4 0.0 0.0 0.0 0.0100.0 84.4 30.0 4.4 0.0 0.0 0.0 0.0 30.9
ID 15 54 25 8 0 0 0 0 104
ABS. 5 31 19 22 9 6 0 0 92 87 56 37 15 6 0 0 280
REL 5.4 33.6 20.6 23.9 9.7 6.5 0.0 0.0100.0 94.6 60.9 40.2 16.3 6.5 0.0 0.015.11
ID 5 33 20 47 48 163 0 0 319
Year
ABS. 50 161 75 42 17 8 0 0 353 303 142 67 25 8 0 0 280
REL. 14.1 45.6 21.2 11.8 4.8 2.2 0.0 0.0100.0 85.8 40.2 19.0 7.1 2.3 0.0 0.015.11
ID 14 45 21 23 24 56 0 0 185

Note:

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