Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1065 - Bohumin
Code:CZKACMBOH
Institution:Czech Hydrometeorological Institute
Region:Severomoravsky
District:Karvina
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ ~ ~ 33 35 54 ~ ~ ~ ~ 28 46 36 32 29 53 186 48 43 43 44 38 19 30 54 51 52 23 28 21 44.57 186.38 23.00
2 59 63 51 51 9 15 19 27 39 47 32 18 21 18 38 34 23 32 40 42 22 36 22 23 21 32 29 51 ~ ~ ~ 32.66 63.38 28.00
3 27 35 45 33 22 23 21 52 44 59 11 32 29 36 49 31 27 35 61 19 40 46 30 33 35 25 20 15 17 53 51 34.11 61.34 31.00
4 39 29 26 37 29 30 21 13 32 29 24 40 53 21 22 35 20 20 21 21 32 37 35 18 21 20 21 13 22 33 ~ 27.23 52.66 30.00
5 20 16 28 19 16 19 19 12 ~ ~ ~ 18 27 33 11 15 31 27 28 27 33 13 17 27 24 20 26 28 16 18 19 21.67 33.49 28.00
6 22 30 26 23 16 12 17 18 20 23 21 9 9 14 14 19 15 13 22 23 10 4.34 24 22 13 ~ ~ ~ 23 20 ~ 17.82 30.26 27.00
7 21 16 19 18 13 15 25 13 27 11 18 43 38 19 21 32 17 31 39 26 26 18 23 12 17 22 16 21 25 23 18 22.00 43.10 31.00
8 16 29 26 42 38 36 21 19 26 28 18 20 18 18 17 23 27 29 25 31 14 14 32 41 42 37 49 14 20 44 22 26.95 49.12 31.00
9 12 24 21 23 29 50 53 34 43 35 23 28 33 35 37 54 41 32 27 22 29 37 41 43 18 41 52 52 28 35 ~ 34.38 53.82 30.00
10 23 22 19 32 27 33 53 35 20 26 34 46 66 39 18 10 28 64 42 37 44 65 37 37 51 43 31 38 71 53 44 38.23 71.02 31.00
11 59 42 32 58 70 55 16 34 60 66 39 87 44 23 40 70 36 72 68 31 67 60 27 23 80 53 29 37 34 25 ~ 47.94 87.11 30.00
12 45 39 23 24 24 23 28 41 68 79 43 19 46 34 32 26 31 29 48 71 29 106 53 13 18 23 31 42 29 34 51 38.86 105.55 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. 41 40 0 0 1 0 0 0 82 41 1 1 1 0 0 0 186
REL. 50.0 48.7 0.0 0.0 1.2 0.0 0.0 0.0 100.0 50.0 1.2 1.2 1.2 0.0 0.0 0.018.1
ID 50 48 0 0 6 0 0 0 104
ABS. 77 8 0 0 0 0 0 0 85 8 0 0 0 0 0 0 53
REL. 90.5 9.4 0.0 0.0 0.0 0.0 0.0 0.0 100.0 9.4 0.0 0.0 0.0 0.0 0.0 0.0 13.4
ID 90 9 0 0 0 0 0 0 100
ABS. 65 27 0 0 0 0 0 0 92 27 0 0 0 0 0 0 54
REL. 70.6 29.3 0.0 0.0 0.0 0.0 0.0 0.0100.0 29.3 0.0 0.0 0.0 0.0 0.0 0.0 16.9
ID 70 29 0 0 0 0 0 0 100
ABS. 36 44 11 1 0 0 0 0 92 56 12 1 0 0 0 0 106
REL 39.1 47.8 11.9 1.0 0.0 0.0 0.0 0.0100.0 60.9 13.0 1.1 0.0 0.0 0.0 0.022.12
ID 39 47 11 2 0 0 0 0 101
Year
ABS. 219 119 11 1 1 0 0 0 351 132 13 2 1 0 0 0 186
REL. 62.3 33.9 3.1 0.2 0.2 0.0 0.0 0.0100.0 37.6 3.7 0.6 0.3 0.0 0.0 0.0 18.1
ID 62 33 3 1 0 0 0 101

Note:

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