Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
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 89 147 138 155 153 193 95 49 49 87 86 108 42 48 58 65 38 20 25 35 23 31 43 73 73 107 80 142 56 50 46 77.51 192.72 31.00
2 149 107 45 77 97 160 160 67 35 144 82 63 47 66 79 67 53 69 62 35 40 58 100 85 37 47 78 35 51 ~ ~ 75.76 160.44 29.00
3 77 53 52 20 23 67 43 23 19 ~ 32 37 86 58 25 29 37 33 24 34 39 59 43 113 48 52 43 ~ 42 29 ~ 44.27 113.15 28.00
4 ~ ~ 23 37 29 31 28 26 21 37 25 43 35 44 19 25 46 43 37 41 43 46 25 20 30 38 34 21 29 28 ~ 32.40 46.44 28.00
5 32 32 37 47 ~ 32 24 16 35 47 35 26 21 24 45 52 29 29 37 24 39 27 35 46 24 55 15 20 41 27 28 32.64 54.58 30.00
6 48 43 35 29 27 22 ~ 36 29 25 21 26 22 32 22 21 20 27 39 42 48 40 21 23 33 27 28 32 30 38 ~ 30.56 47.81 29.00
7 40 36 35 29 22 19 21 14 29 23 43 30 36 39 23 12 22 39 26 44 36 27 37 39 39 44 41 44 ~ 20 33 31.40 44.29 30.00
8 51 25 32 35 23 29 36 30 35 57 48 33 39 46 58 49 52 35 34 39 54 29 28 44 22 31 44 35 36 43 46 38.65 57.62 31.00
9 39 42 19 22 35 69 64 50 54 53 61 62 53 46 40 23 46 42 45 41 48 47 35 64 62 77 92 42 22 15 ~ 46.92 91.70 30.00
10 15 57 107 75 92 57 47 40 ~ 33 19 32 27 67 35 48 87 70 54 30 71 114 159 141 169 144 103 59 111 ~ 54 72.94 168.75 29.00
11 128 47 30 43 41 19 26 137 138 104 159 40 188 101 114 54 66 49 45 45 79 91 51 168 74 52 73 100 74 84 ~ 80.63 187.77 30.00
12 99 45 54 75 44 38 35 47 72 52 159 274 351 186 102 22 60 90 78 87 67 109 77 106 65 106 84 84 77 60 ~ 93.44 351.07 30.00

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. 14 41 18 10 5 0 0 0 88 74 33 15 5 0 0 0 193
REL. 15.9 46.5 20.4 11.3 5.6 0.0 0.0 0.0 100.0 84.1 37.5 17.0 5.7 0.0 0.0 0.06.1
ID 15 46 20 22 28 0 0 0 134
ABS. 52 35 0 0 0 0 0 0 87 35 0 0 0 0 0 0 55
REL. 59.7 40.2 0.0 0.0 0.0 0.0 0.0 0.0 100.0 40.2 0.0 0.0 0.0 0.0 0.0 0.0 26.5
ID 59 40 0 0 0 0 0 0 100
ABS. 30 58 3 0 0 0 0 0 91 61 3 0 0 0 0 0 92
REL. 32.9 63.7 3.2 0.0 0.0 0.0 0.0 0.0100.0 67.0 3.3 0.0 0.0 0.0 0.0 0.0 27.9
ID 32 63 3 0 0 0 0 0 100
ABS. 10 30 23 17 7 1 1 0 89 79 49 26 9 2 1 0 351
REL 11.2 33.7 25.8 19.1 7.8 1.1 1.1 0.0100.0 88.8 55.1 29.2 10.1 2.2 1.1 0.013.12
ID 11 33 25 38 39 28 140 0 316
Year
ABS. 106 164 44 27 12 1 1 0 355 249 85 41 14 2 1 0 351
REL. 29.8 46.1 12.3 7.6 3.3 0.2 0.2 0.0100.0 70.1 23.9 11.5 3.9 0.6 0.3 0.013.12
ID 29 46 12 15 16 7 35 0 162

Note:

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