Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1129 - Brno-Kroftova
Code:CZBMCMKRO
Institution:Czech Hydrometeorological Institute
Region:Jihomoravsky
District:Brno-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 27 58 96 238 256 68 96 188 149 44 39 65 132 103 145 143 124 129 74 51 46 62 44 39 47 69 85 62 28 21 37 89.17 255.94 31.00
2 87 70 58 36 20 22 47 108 67 54 33 31 32 40 115 134 29 70 114 132 72 73 32 62 76 126 98 80 ~ ~ ~ 68.51 134.35 28.00
3 47 54 137 37 55 68 36 104 78 104 39 52 58 61 65 43 52 53 53 38 90 105 59 127 34 27 27 29 40 52 50 60.48 136.50 31.00
4 63 38 33 35 42 80 55 36 44 39 31 54 81 33 28 113 39 40 41 51 33 63 45 34 39 54 55 40 47 56 ~ 48.10 113.41 30.00
5 46 36 45 25 29 39 31 42 41 54 39 32 47 47 22 26 26 57 24 24 ~ ~ ~ 40 49 34 40 41 37 29 ~ 37.19 57.24 27.00
6 29 26 41 37 37 16 32 22 30 27 28 17 22 32 32 46 36 21 19 ~ 24 19 27 40 41 13 21 29 36 34 ~ 28.76 45.83 29.00
7 26 31 26 17 11 16 27 22 27 25 22 32 39 31 34 31 36 21 23 29 39 31 23 19 28 26 23 24 26 27 28 26.32 39.02 31.00
8 27 36 32 40 38 43 18 25 35 50 32 27 24 34 38 49 35 36 47 51 21 24 33 55 ~ 18 46 22 31 34 34 34.49 54.71 30.00
9 20 40 55 36 47 66 63 55 57 48 48 39 68 90 58 79 83 53 19 21 42 63 71 89 43 58 71 71 68 62 ~ 56.05 89.96 30.00
10 61 24 31 67 42 66 50 99 33 53 67 59 52 48 44 33 66 81 63 50 29 30 29 51 84 147 77 109 69 36 113 60.11 146.86 31.00
11 150 190 59 71 51 49 39 79 89 75 71 100 40 41 69 61 80 116 75 65 79 58 45 55 141 194 50 42 52 65 ~ 78.34 194.48 30.00
12 113 79 87 51 59 85 85 245 219 146 68 58 138 118 103 ~ 123 123 66 65 90 185 78 28 40 51 98 53 127 140 ~ 100.74 245.29 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- 33 34- 67 68- 100 101- 150 151- 200 201- 300 301- 400 over 400 33 67 100 150 200 300 400
ABS. 13 38 18 18 1 2 0 0 90 77 39 21 3 2 0 0 256
REL. 14.4 42.2 20.0 20.0 1.1 2.2 0.0 0.0 100.0 85.6 43.3 23.3 3.3 2.2 0.0 0.05.1
ID 14 42 20 40 5 55 0 0 177
ABS. 34 49 2 1 0 0 0 0 86 52 3 1 0 0 0 0 113
REL. 39.5 56.9 2.3 1.1 0.0 0.0 0.0 0.0 100.0 60.5 3.5 1.2 0.0 0.0 0.0 0.0 16.4
ID 39 56 2 2 0 0 0 0 101
ABS. 43 39 9 0 0 0 0 0 91 48 9 0 0 0 0 0 90
REL. 47.2 42.8 9.8 0.0 0.0 0.0 0.0 0.0100.0 52.7 9.9 0.0 0.0 0.0 0.0 0.0 14.9
ID 47 42 9 0 0 0 0 0 100
ABS. 8 37 24 16 3 2 0 0 90 82 45 21 5 2 0 0 245
REL 8.8 41.1 26.6 17.7 3.3 2.2 0.0 0.0100.0 91.1 50.0 23.3 5.6 2.2 0.0 0.0 8.12
ID 8 41 26 35 16 55 0 0 184
Year
ABS. 98 163 53 35 4 4 0 0 357 259 96 43 8 4 0 0 256
REL. 27.4 45.6 14.8 9.8 1.1 1.1 0.0 0.0100.0 72.5 26.9 12.0 2.2 1.1 0.0 0.0 5.1
ID 27 45 14 19 5 28 0 0 141

Note:

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