Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1065 - Bohumin
Code:CZKACMBOH
Institution:Czech Hydrometeorological Institute
Region:Moravskoslezsky
District:Karvina
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 48 34 44 123 62 31 49 21 43 76 56 34 42 87 128 100 83 88 106 74 55 63 76 54 65 54 48 46 57 50 18 61.70 128.07 31.00
2 25 27 53 64 61 42 69 79 32 19 36 37 24 84 71 107 40 15 30 20 10 6.84 16 37 79 67 57 35 ~ ~ ~ 44.38 107.46 28.00
3 43 47 41 47 28 56 53 42 51 32 30 37 38 29 27 39 29 43 26 20 39 49 45 37 33 29 26 28 42 41 25 37.07 55.56 31.00
4 63 60 54 37 40 40 21 12 20 35 36 17 5.43 17 15 28 19 34 30 26 13 6.66 22 45 34 34 30 22 29 26 ~ 29.10 63.19 30.00
5 24 20 27 25 15 11 14 20 32 22 13 16 23 32 25 32 27 17 22 23 16 20 30 36 17 23 18 22 11 21 24 21.88 35.57 31.00
6 21 14 11 13 27 36 29 26 15 20 22 18 23 25 29 18 22 13 12 14 20 26 6.43 23 18 21 25 17 19 17 ~ 19.97 36.07 30.00
7 10 11 20 25 24 18 12 17 22 35 24 28 21 22 14 15 8.91 24 32 19 9 11 15 10 8.22 15 28 16 17 27 23 18.76 35.21 31.00
8 16 22 21 12 18 27 27 22 25 27 12 20 20 29 36 31 20 20 29 17 12 18 22 31 31 29 24 12 38 39 41 24.14 41.18 31.00
9 19 29 40 19 14 22 20 20 11 19 27 32 36 45 28 28 30 45 49 43 37 18 25 28 23 32 40 28 34 33 ~ 29.21 49.16 30.00
10 31 30 42 36 49 42 39 88 48 53 44 66 41 40 100 95 48 46 49 49 37 36 29 39 39 30 20 26 52 34 31 45.47 99.84 31.00
11 6.15 42 37 28 41 46 33 19 19 59 41 61 46 41 44 44 56 36 50 20 49 29 8.68 11 20 54 64 53 106 37 ~ 40.05 106.45 30.00
12 28 37 42 51 48 90 66 77 128 102 97 53 64 75 58 20 68 35 46 23 22 47 19 20 27 26 49 23 30 31 14 48.96 127.68 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. 27 46 13 4 0 0 0 0 90 63 17 4 0 0 0 0 128
REL. 30.0 51.1 14.4 4.4 0.0 0.0 0.0 0.0 100.0 70.0 18.9 4.4 0.0 0.0 0.0 0.015.1
ID 30 51 14 8 0 0 0 0 104
ABS. 77 14 0 0 0 0 0 0 91 14 0 0 0 0 0 0 63
REL. 84.6 15.3 0.0 0.0 0.0 0.0 0.0 0.0 100.0 15.4 0.0 0.0 0.0 0.0 0.0 0.0 1.4
ID 84 15 0 0 0 0 0 0 100
ABS. 78 14 0 0 0 0 0 0 92 14 0 0 0 0 0 0 49
REL. 84.7 15.2 0.0 0.0 0.0 0.0 0.0 0.0100.0 15.2 0.0 0.0 0.0 0.0 0.0 0.0 19.9
ID 84 15 0 0 0 0 0 0 100
ABS. 29 52 8 3 0 0 0 0 92 63 11 3 0 0 0 0 128
REL 31.5 56.5 8.6 3.2 0.0 0.0 0.0 0.0100.0 68.5 12.0 3.3 0.0 0.0 0.0 0.0 9.12
ID 31 56 8 6 0 0 0 0 103
Year
ABS. 211 126 21 7 0 0 0 0 365 154 28 7 0 0 0 0 128
REL. 57.8 34.5 5.7 1.9 0.0 0.0 0.0 0.0100.0 42.2 7.7 1.9 0.0 0.0 0.0 0.0 15.1
ID 57 34 5 3 0 0 0 0 101

Note:

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