Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1104 - Ceske Budejovice
Code:CZCBCMCEB
Institution:Czech Hydrometeorological Institute
Region:Jihocesky
District:Ceske Budejovice
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 17 21 23 30 47 47 36 26 20 17 22 23 26 29 23 32 25 23 30 25 43 67 31 79 30 24 24 31 11 12 21 29.47 78.85 31.00
2 46 56 78 23 8.27 8.66 10 19 27 30 22 14 13 33 44 30 11 58 36 30 19 14 13 31 28 40 60 64 ~ ~ ~ 30.88 77.80 28.00
3 18 15 23 50 60 34 45 45 76 51 39 35 27 22 43 20 36 50 30 12 16 30 ~ ~ ~ 49 18 20 34 66 ~ 35.68 75.77 27.00
4 ~ ~ 30 18 39 28 21 18 42 26 17 14 14 22 19 20 15 33 34 25 39 36 30 19 23 30 20 30 24 28 ~ 25.54 42.19 28.00
5 17 28 35 17 18 18 14 17 17 28 19 14 20 19 10 19 15 14 16 17 27 12 20 28 25 25 29 27 20 20 15 19.87 34.64 31.00
6 17 15 17 15 12 10 14 18 22 20 17 18 16 14 17 17 18 19 15 13 17 14 21 31 25 19 20 24 22 24 ~ 17.99 31.05 30.00
7 18 30 11 9 8.83 12 12 17 23 15 11 16 19 17 18 20 16 19 16 22 20 14 13 15 22 22 15 16 18 22 18 16.89 30.17 31.00
8 17 22 25 24 38 18 19 17 20 25 22 17 22 15 13 19 23 20 15 23 13 16 19 25 29 16 23 18 19 28 29 20.85 37.76 31.00
9 22 24 29 11 12 21 31 34 53 43 28 33 44 50 39 28 24 18 12 17 24 26 34 39 28 25 36 41 23 15 ~ 28.93 53.34 30.00
10 14 29 17 32 26 26 37 21 10 13 28 65 64 25 43 27 30 44 45 27 20 22 30 27 26 65 40 81 66 28 26 34.01 81.11 31.00
11 28 51 35 30 33 21 21 29 30 23 32 30 17 17 26 29 46 33 35 47 38 43 49 75 ~ 110 56 21 31 92 ~ 38.87 109.85 29.00
12 21 19 20 21 13 35 27 32 44 200 17 16 22 22 33 30 43 34 60 128 60 82 50 20 21 12 17 53 59 28 28 40.87 199.62 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. 56 26 4 0 0 0 0 0 86 30 4 0 0 0 0 0 79
REL. 65.1 30.2 4.6 0.0 0.0 0.0 0.0 0.0 100.0 34.9 4.7 0.0 0.0 0.0 0.0 0.024.1
ID 65 30 4 0 0 0 0 0 100
ABS. 82 7 0 0 0 0 0 0 89 7 0 0 0 0 0 0 42
REL. 92.1 7.8 0.0 0.0 0.0 0.0 0.0 0.0 100.0 7.9 0.0 0.0 0.0 0.0 0.0 0.0 9.4
ID 92 7 0 0 0 0 0 0 100
ABS. 81 11 0 0 0 0 0 0 92 11 0 0 0 0 0 0 53
REL. 88.0 11.9 0.0 0.0 0.0 0.0 0.0 0.0100.0 12.0 0.0 0.0 0.0 0.0 0.0 0.0 9.9
ID 88 11 0 0 0 0 0 0 100
ABS. 57 27 4 2 1 0 0 0 91 34 7 3 1 0 0 0 200
REL 62.6 29.6 4.3 2.1 1.0 0.0 0.0 0.0100.0 37.4 7.7 3.3 1.1 0.0 0.0 0.010.12
ID 62 29 4 4 5 0 0 0 106
Year
ABS. 276 71 8 2 1 0 0 0 358 82 11 3 1 0 0 0 200
REL. 77.0 19.8 2.2 0.5 0.2 0.0 0.0 0.0100.0 22.9 3.1 0.8 0.3 0.0 0.0 0.010.12
ID 77 19 2 1 1 0 0 0 101

Note:

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