Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1186 - Opava-Katerinky
Code:CZOPCMOKA
Institution:CHMI
Region:Severomoravsky
District:Opava
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 15 15 9 3.54 6.02 11 26 10 15 43 9 15 22 23 48 27 20 14 20 17 13 21 37 70 31 44 40 40 48 31 21 24.74 69.80 31.00
2 89 50 30 31 38 109 34 32 39 63 74 33 32 32 27 28 21 36 46 56 29 39 51 54 31 ~ 20 14 ~ ~ ~ 42.24 109.04 27.00
3 17 20 18 20 14 20 12 11 14 25 39 29 17 8.20 12 26 42 30 12 12 9 21 26 14 24 ~ 27 39 44 43 27 22.41 44.10 30.00
4 30 36 ~ ~ ~ ~ ~ 17 31 23 17 11 20 36 28 28 26 18 12 20 21 22 41 21 22 25 13 20 35 21 ~ 23.89 40.82 25.00
5 11 7.31 12 6.55 10 13 18 13 14 20 24 11 15 9 7.73 10 11 15 8.61 12 9 5.98 7.63 13 18 17 21 18 17 13 12 12.91 24.07 31.00
6 10 19 15 23 21 12 7.38 7.16 17 12 7.20 6.22 2.85 7.62 11 8.77 12 13 8.02 10 17 17 12 13 21 17 14 4.94 ~ 12 ~ 12.40 23.27 29.00
7 9 12 8.54 5.89 6.19 9 8.02 7.42 11 12 5.12 5.75 7.79 12 13 8.28 11 5.28 11 19 16 7.48 12 12 7.87 17 12 13 13 12 17 10.59 19.29 31.00
8 12 11 8.03 10 14 14 12 13 11 27 24 22 14 15 16 14 21 21 18 24 11 8.74 9 11 12 20 16 11 10 15 28 15.21 28.03 31.00
9 24 31 34 22 16 13 28 15 12 11 17 9 10 11 14 15 21 17 8.24 7.50 13 42 29 52 49 30 35 25 14 16 ~ 21.39 52.09 30.00
10 20 21 16 27 38 30 28 115 35 11 10 16 30 27 42 34 12 11 29 30 21 24 20 17 13 20 19 10 13 13 11 24.62 114.88 31.00
11 10 23 19 29 20 20 38 33 59 52 39 72 66 25 20 17 10 18 23 16 24 38 76 109 93 123 75 62 33 44 ~ 42.86 123.25 30.00
12 39 65 62 38 29 15 21 29 35 35 65 39 17 48 95 19 47 42 25 15 34 43 71 10 16 13 13 15 95 73 23 38.27 94.78 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. 61 23 3 1 0 0 0 0 88 27 4 1 0 0 0 0 109
REL. 69.3 26.1 3.4 1.1 0.0 0.0 0.0 0.0 100.0 30.7 4.5 1.1 0.0 0.0 0.0 0.06.2
ID 69 26 3 2 0 0 0 0 101
ABS. 81 4 0 0 0 0 0 0 85 4 0 0 0 0 0 0 41
REL. 95.2 4.7 0.0 0.0 0.0 0.0 0.0 0.0 100.0 4.7 0.0 0.0 0.0 0.0 0.0 0.0 23.4
ID 95 4 0 0 0 0 0 0 100
ABS. 87 5 0 0 0 0 0 0 92 5 0 0 0 0 0 0 52
REL. 94.5 5.4 0.0 0.0 0.0 0.0 0.0 0.0100.0 5.4 0.0 0.0 0.0 0.0 0.0 0.0 24.9
ID 94 5 0 0 0 0 0 0 100
ABS. 56 25 8 3 0 0 0 0 92 36 11 3 0 0 0 0 123
REL 60.8 27.1 8.6 3.2 0.0 0.0 0.0 0.0100.0 39.1 12.0 3.3 0.0 0.0 0.0 0.026.11
ID 60 27 8 6 0 0 0 0 103
Year
ABS. 285 57 11 4 0 0 0 0 357 72 15 4 0 0 0 0 123
REL. 79.8 15.9 3.0 1.1 0.0 0.0 0.0 0.0100.0 20.2 4.2 1.1 0.0 0.0 0.0 0.026.11
ID 79 15 3 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