Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
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 20 26 63 46 41 56 30 48 35 51 40 39 56 59 45 37 24 40 32 27 21 23 30 34 48 38 19 70 108 56 30 41.61 107.66 31.00
2 46 33 25 17 15 34 44 56 137 44 58 71 59 80 145 144 61 16 25 15 19 10 15 13 26 28 25 23 ~ ~ ~ 45.94 145.38 28.00
3 38 31 25 19 23 22 29 25 51 15 11 42 16 14 19 34 26 18 10 13 27 49 33 28 12 22 20 18 25 39 31 25.37 51.28 31.00
4 32 39 48 32 22 19 16 17 ~ ~ ~ 21 13 14 12 26 31 19 22 24 15 15 25 26 17 32 21 25 22 19 ~ 23.08 48.22 27.00
5 22 20 24 20 14 14 18 21 30 28 21 12 17 19 21 15 ~ 21 21 21 19 18 20 32 25 17 26 20 14 19 17 20.28 32.32 30.00
6 15 11 6.78 18 30 32 24 19 13 20 20 23 20 28 21 16 20 14 15 23 18 13 14 22 24 27 34 22 19 16 ~ 19.89 34.48 30.00
7 14 18 17 14 14 10 11 15 19 20 29 19 19 14 13 16 21 15 17 16 17 24 15 29 26 29 26 20 16 19 27 18.61 28.86 31.00
8 23 17 15 15 16 14 14 18 20 25 18 19 22 26 23 16 18 21 22 18 21 26 22 31 28 24 25 22 25 25 33 21.43 33.15 31.00
9 15 17 23 35 16 29 15 8.76 6.45 14 12 17 27 42 19 15 17 39 25 37 30 30 31 25 24 37 30 34 26 30 ~ 24.30 42.46 30.00
10 23 28 43 48 37 39 25 27 51 71 69 66 51 24 39 41 21 30 34 17 31 40 38 69 43 19 21 19 85 58 27 39.80 85.02 31.00
11 10 31 46 73 42 42 18 12 20 39 23 29 41 89 117 159 56 20 54 65 149 19 14 20 40 130 57 38 61 26 ~ 51.39 159.14 30.00
12 21 18 22 46 118 33 29 33 66 77 60 38 35 68 36 25 33 36 25 45 66 21 34 22 8.03 26 22 11 20 20 16 36.40 117.82 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. 51 32 3 4 0 0 0 0 90 39 7 4 0 0 0 0 145
REL. 56.6 35.5 3.3 4.4 0.0 0.0 0.0 0.0 100.0 43.3 7.8 4.4 0.0 0.0 0.0 0.015.2
ID 56 35 3 8 0 0 0 0 104
ABS. 84 3 0 0 0 0 0 0 87 3 0 0 0 0 0 0 48
REL. 96.5 3.4 0.0 0.0 0.0 0.0 0.0 0.0 100.0 3.4 0.0 0.0 0.0 0.0 0.0 0.0 3.4
ID 96 3 0 0 0 0 0 0 100
ABS. 86 6 0 0 0 0 0 0 92 6 0 0 0 0 0 0 42
REL. 93.4 6.5 0.0 0.0 0.0 0.0 0.0 0.0100.0 6.5 0.0 0.0 0.0 0.0 0.0 0.0 14.9
ID 93 6 0 0 0 0 0 0 100
ABS. 41 38 8 4 1 0 0 0 92 51 13 5 1 0 0 0 159
REL 44.5 41.3 8.6 4.3 1.0 0.0 0.0 0.0100.0 55.4 14.1 5.4 1.1 0.0 0.0 0.016.11
ID 44 41 8 8 5 0 0 0 108
Year
ABS. 262 79 11 8 1 0 0 0 361 99 20 9 1 0 0 0 159
REL. 72.5 21.8 3.0 2.2 0.2 0.0 0.0 0.0100.0 27.4 5.5 2.5 0.3 0.0 0.0 0.016.11
ID 72 21 3 4 1 0 0 0 103

Note:

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