Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
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 33 16 32 89 84 104 108 57 57 62 49 100 96 88 38 46 53 54 95 107 88 121 201 182 109 148 53 74 117 177 176 90.81 200.68 31.00
2 238 146 38 120 71 60 145 104 77 40 83 22 42 54 90 111 83 68 31 53 49 47 27 26 106 57 37 76 ~ ~ ~ 75.08 237.98 28.00
3 102 41 41 121 69 96 26 76 62 46 75 61 109 49 42 55 28 97 79 117 86 19 16 16 23 26 31 41 68 63 54 59.21 121.38 31.00
4 36 36 29 41 31 31 ~ 45 37 34 31 25 27 29 55 44 38 44 47 37 30 34 32 28 52 57 32 25 33 67 ~ 37.47 66.96 29.00
5 24 30 32 14 26 37 38 51 21 15 25 20 40 35 29 38 38 19 21 29 18 20 25 23 32 27 33 23 19 28 34 27.94 51.04 31.00
6 17 24 27 37 15 24 40 33 28 19 20 43 42 28 25 21 26 35 30 24 28 27 24 25 24 36 39 29 17 32 ~ 27.98 42.53 30.00
7 29 22 20 31 27 17 28 32 36 17 19 20 22 18 19 28 36 18 25 25 23 21 35 28 20 24 19 25 28 24 44 25.22 44.49 31.00
8 28 30 25 18 26 43 38 32 31 13 14 21 12 20 22 27 24 33 36 41 31 40 43 29 35 52 29 31 39 32 28 29.76 51.72 31.00
9 22 28 70 53 35 33 37 43 57 31 24 28 33 28 14 34 67 53 70 55 34 39 30 32 33 57 23 39 51 69 ~ 40.77 70.07 30.00
10 42 89 97 60 52 40 37 50 44 47 47 37 62 56 50 55 67 76 81 56 90 97 81 64 59 28 40 27 104 67 59 60.03 103.79 31.00
11 112 53 29 47 34 85 55 180 41 70 150 205 68 138 62 23 88 172 63 127 166 54 81 40 53 68 55 53 55 66 ~ 83.07 204.89 30.00
12 74 37 114 153 49 52 49 56 71 102 172 49 63 127 48 50 74 49 91 93 193 120 76 72 35 31 38 113 151 124 31 82.49 193.24 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. 15 30 22 18 3 2 0 0 90 75 45 23 5 2 0 0 238
REL. 16.6 33.3 24.4 20.0 3.3 2.2 0.0 0.0 100.0 83.3 50.0 25.6 5.6 2.2 0.0 0.01.2
ID 16 33 24 40 16 55 0 0 186
ABS. 59 30 1 0 0 0 0 0 90 31 1 0 0 0 0 0 67
REL. 65.5 33.3 1.1 0.0 0.0 0.0 0.0 0.0 100.0 34.4 1.1 0.0 0.0 0.0 0.0 0.0 30.4
ID 65 33 1 0 0 0 0 0 100
ABS. 61 27 4 0 0 0 0 0 92 31 4 0 0 0 0 0 70
REL. 66.3 29.3 4.3 0.0 0.0 0.0 0.0 0.0100.0 33.7 4.3 0.0 0.0 0.0 0.0 0.0 19.9
ID 66 29 4 0 0 0 0 0 100
ABS. 6 45 22 10 8 1 0 0 92 86 41 19 9 1 0 0 205
REL 6.5 48.9 23.9 10.8 8.6 1.0 0.0 0.0100.0 93.5 44.6 20.7 9.8 1.1 0.0 0.012.11
ID 6 48 23 21 43 27 0 0 171
Year
ABS. 141 132 49 28 11 3 0 0 364 223 91 42 14 3 0 0 238
REL. 38.7 36.2 13.4 7.6 3.0 0.8 0.0 0.0100.0 61.3 25.0 11.5 3.8 0.8 0.0 0.0 1.2
ID 38 36 13 15 15 20 0 0 139

Note:

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