Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1065 - Bohumin
Code:CZKACMBOH
Institution:CHMI
Region:Severomoravsky
District:Karvina
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 39 58 31 16 24 21 35 37 29 49 25 36 48 36 75 65 36 32 33 44 29 24 67 76 70 87 97 62 65 53 29 46.04 96.90 31.00
2 93 59 61 71 64 94 66 56 43 68 72 63 55 64 54 27 26 48 50 75 43 65 60 52 50 67 34 30 ~ ~ ~ 57.45 93.56 28.00
3 30 32 29 30 14 21 20 14 15 41 50 44 26 5.73 26 24 79 70 15 17 11 24 35 22 30 45 46 66 44 69 34 33.25 79.15 31.00
4 51 45 38 19 29 33 25 23 29 23 24 13 19 54 34 33 34 16 4.80 25 21 33 40 30 24 30 24 26 31 34 ~ 28.79 54.16 30.00
5 22 12 13 7.23 15 23 33 21 24 24 35 21 30 16 16 14 13 31 18 17 15 1.99 17 20 35 37 33 29 29 24 23 21.59 36.94 31.00
6 16 34 23 29 24 18 12 8.97 35 22 5.87 ~ ~ ~ 18 22 24 18 23 ~ 19 20 16 19 36 23 24 17 23 16 ~ 21.05 36.04 26.00
7 17 23 16 10 13 13 18 7.60 15 20 14 18 17 21 27 21 26 17 26 31 30 15 24 19 17 16 26 23 28 20 31 19.95 31.30 31.00
8 14 15 15 14 24 22 26 18 14 31 35 25 18 21 25 21 31 30 21 33 17 9 17 19 18 30 27 22 17 24 43 22.40 43.48 31.00
9 34 34 41 43 24 29 43 35 31 30 24 17 15 25 22 25 28 21 15 16 31 46 31 56 68 34 37 27 16 27 ~ 30.92 68.04 30.00
10 24 31 34 33 53 30 27 79 58 23 15 29 37 26 50 61 26 21 49 40 33 36 35 32 29 36 31 16 24 23 14 34.02 79.35 31.00
11 11 32 34 47 29 26 50 62 90 61 38 81 67 60 30 22 14 40 66 32 40 49 81 108 84 146 82 ~ 38 35 ~ 53.58 146.12 29.00
12 40 62 133 83 44 25 15 37 59 75 144 40 37 62 70 29 64 52 43 27 49 70 78 27 15 20 32 28 137 64 60 55.51 143.89 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. 33 41 16 0 0 0 0 0 90 57 16 0 0 0 0 0 97
REL. 36.6 45.5 17.7 0.0 0.0 0.0 0.0 0.0 100.0 63.3 17.8 0.0 0.0 0.0 0.0 0.027.1
ID 36 45 17 0 0 0 0 0 100
ABS. 73 14 0 0 0 0 0 0 87 14 0 0 0 0 0 0 54
REL. 83.9 16.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 16.1 0.0 0.0 0.0 0.0 0.0 0.0 14.4
ID 83 16 0 0 0 0 0 0 100
ABS. 79 12 1 0 0 0 0 0 92 13 1 0 0 0 0 0 68
REL. 85.8 13.0 1.0 0.0 0.0 0.0 0.0 0.0100.0 14.1 1.1 0.0 0.0 0.0 0.0 0.0 25.9
ID 85 13 1 0 0 0 0 0 100
ABS. 36 38 12 5 0 0 0 0 91 55 17 5 0 0 0 0 146
REL 39.5 41.7 13.1 5.4 0.0 0.0 0.0 0.0100.0 60.4 18.7 5.5 0.0 0.0 0.0 0.026.11
ID 39 41 13 10 0 0 0 0 105
Year
ABS. 221 105 29 5 0 0 0 0 360 139 34 5 0 0 0 0 146
REL. 61.3 29.1 8.0 1.3 0.0 0.0 0.0 0.0100.0 38.6 9.4 1.4 0.0 0.0 0.0 0.026.11
ID 61 29 8 2 0 0 0 0 101

Note:

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