Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 147 - Brno-VSZ
Code:CZBMCMVSZ
Institution:CHMI
Region:Jihomoravsky
District:Brno-mesto
IHd: 100
Measure method:guajacol (modif. Jakobs-Hochheiser) - spectrophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 27 35 31 26 35 39 49 49 35 27 36 22 41 28 57 33 25 27 34 25 22 11 61 29 41 68 57 66 40 63 24 37.52 68.00 31.00
2 37 45 58 93 84 109 43 38 70 121 126 78 32 57 26 41 27 51 72 65 55 38 41 37 37 41 47 14 ~ ~ ~ 56.54 126.00 28.00
3 41 29 54 39 14 28 14 18 25 40 72 39 25 13 21 43 65 45 16 16 9.00 16 34 28 42 66 64 40 30 50 63 35.45 72.00 31.00
4 60 34 44 21 34 28 40 27 41 29 28 18 24 53 54 23 54 16 19 17 19 28 53 35 18 31 17 12 43 22 ~ 31.40 60.00 30.00
5 7.00 20 17 37 7.00 13 9.00 11 15 8.00 ~ 33 52 37 47 44 20 27 22 23 12 12 16 14 11 23 24 11 21 9.00 5.00 20.23 52.00 30.00
6 18 37 37 33 34 18 13 15 34 27 23 19 17 10 23 34 27 19 23 17 20 26 ~ 29 36 54 31 23 25 30 ~ 25.93 54.00 29.00
7 19 14 24 8.00 12 15 44 18 18 ~ 39 14 17 30 21 30 31 15 27 35 47 26 20 23 22 19 33 18 26 32 47 24.80 47.00 30.00
8 20 24 ~ 35 19 21 33 8.00 9.00 26 35 34 22 17 21 28 22 29 23 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 23.67 35.00 18.00
9 ~ ~ ~ 13 45 31 24 37 33 26 36 35 ~ 30 17 32 19 11 12 14 16 24 35 54 35 31 32 45 37 36 ~ 29.23 54.00 26.00
10 30 32 17 17 33 43 17 25 13 34 24 7.00 33 4.00 45 57 4.00 28 36 39 90 17 49 36 37 24 58 13 19 16 23 29.68 90.00 31.00
11 17 34 44 62 42 42 26 49 64 43 41 41 70 40 32 49 21 37 77 30 33 121 94 187 109 74 62 43 40 53 ~ 55.90 187.00 30.00
12 40 84 52 51 46 18 19 34 42 60 61 2.00 80 44 ~ 31 90 64 43 55 41 75 52 28 31 30 56 36 69 45 29 46.93 90.00 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. 33 47 7 3 0 0 0 0 90 57 10 3 0 0 0 0 126
REL. 36.6 52.2 7.7 3.3 0.0 0.0 0.0 0.0 100.0 63.3 11.1 3.3 0.0 0.0 0.0 0.011.2
ID 36 52 7 6 0 0 0 0 103
ABS. 65 24 0 0 0 0 0 0 89 24 0 0 0 0 0 0 60
REL. 73.0 26.9 0.0 0.0 0.0 0.0 0.0 0.0 100.0 27.0 0.0 0.0 0.0 0.0 0.0 0.0 1.4
ID 73 26 0 0 0 0 0 0 100
ABS. 56 18 0 0 0 0 0 0 74 18 0 0 0 0 0 0 54
REL. 75.6 24.3 0.0 0.0 0.0 0.0 0.0 0.0100.0 24.3 0.0 0.0 0.0 0.0 0.0 0.0 24.9
ID 75 24 0 0 0 0 0 0 100
ABS. 34 44 10 2 1 0 0 0 91 57 13 3 1 0 0 0 187
REL 37.3 48.3 10.9 2.1 1.0 0.0 0.0 0.0100.0 62.6 14.3 3.3 1.1 0.0 0.0 0.024.11
ID 37 48 10 4 5 0 0 0 106
Year
ABS. 188 133 17 5 1 0 0 0 344 156 23 6 1 0 0 0 187
REL. 54.6 38.6 4.9 1.4 0.2 0.0 0.0 0.0100.0 45.3 6.7 1.7 0.3 0.0 0.0 0.024.11
ID 54 38 4 2 1 0 0 0 102

Note:

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