Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1186 - Opava-Katerinky
Code:CZOPCMOKA
Institution:Czech Hydrometeorological Institute
Region:Moravskoslezsky
District:Opava
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 14 4.91 25 87 100 46 26 21 39 64 37 38 51 35 24 27 29 25 26 14 24 24 21 18 16 12 14 12 14 18 31 30.23 100.01 31.00
2 20 12 16 35 21 24 31 18 13 8.98 13 11 13 17 80 82 17 28 18 15 12 15 8.95 11 23 14 12 13 ~ ~ ~ 21.45 82.31 28.00
3 14 14 14 43 54 19 11 29 11 21 17 47 26 15 21 27 30 21 19 22 17 7.00 5.97 6.57 8.79 12 11 36 45 39 20 22.06 54.23 31.00
4 21 28 18 20 12 13 26 37 30 24 33 38 24 19 21 27 23 27 18 14 12 25 14 16 19 17 9 8.27 11 18 ~ 20.74 38.05 30.00
5 21 17 15 10 11 14 14 19 19 16 17 14 17 15 12 13 10 10 8.08 13 17 14 18 9 16 12 14 13 8.53 15 10 13.94 21.02 31.00
6 4.57 6.57 15 16 12 15 12 7.70 5.85 8.43 14 11 10 12 6.99 11 13 21 18 10 6.36 8.38 6.41 13 11 17 11 12 6.74 11 ~ 11.19 20.97 30.00
7 10 9 11 10 10 8.11 12 17 15 11 7.14 11 8.93 7.23 10 15 16 9 13 8.73 7.39 10 11 7.70 10 11 10 12 14 17 16 11.20 17.25 31.00
8 11 12 10 9 14 12 14 19 18 14 15 12 11 6.03 6.40 14 13 14 14 26 19 20 23 16 19 35 29 22 22 20 12 16.22 34.95 31.00
9 6.76 13 25 32 21 15 16 23 35 28 17 20 26 11 6.04 13 20 31 29 20 16 22 14 12 14 24 12 13 36 50 ~ 20.66 50.08 30.00
10 68 47 37 26 13 10 16 ~ ~ 22 21 16 24 ~ 20 17 18 17 12 28 32 25 20 33 31 7.44 6.49 7.88 19 21 34 23.24 68.06 28.00
11 20 14 18 22 10 44 39 28 11 20 23 24 20 31 10 7.28 16 62 47 27 57 37 27 70 30 22 35 57 80 28 ~ 31.36 80.27 30.00
12 35 66 42 47 31 24 23 16 47 85 80 52 43 73 72 33 28 21 42 24 44 51 35 62 76 15 17 19 22 29 25 41.25 85.05 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. 72 14 3 1 0 0 0 0 90 18 4 1 0 0 0 0 100
REL. 80.0 15.5 3.3 1.1 0.0 0.0 0.0 0.0 100.0 20.0 4.4 1.1 0.0 0.0 0.0 0.05.1
ID 80 15 3 2 0 0 0 0 101
ABS. 89 2 0 0 0 0 0 0 91 2 0 0 0 0 0 0 38
REL. 97.8 2.1 0.0 0.0 0.0 0.0 0.0 0.0 100.0 2.2 0.0 0.0 0.0 0.0 0.0 0.0 12.4
ID 97 2 0 0 0 0 0 0 100
ABS. 88 4 0 0 0 0 0 0 92 4 0 0 0 0 0 0 50
REL. 95.6 4.3 0.0 0.0 0.0 0.0 0.0 0.0100.0 4.3 0.0 0.0 0.0 0.0 0.0 0.0 30.9
ID 95 4 0 0 0 0 0 0 100
ABS. 58 23 8 0 0 0 0 0 89 31 8 0 0 0 0 0 85
REL 65.1 25.8 8.9 0.0 0.0 0.0 0.0 0.0100.0 34.8 9.0 0.0 0.0 0.0 0.0 0.010.12
ID 65 25 8 0 0 0 0 0 100
Year
ABS. 307 43 11 1 0 0 0 0 362 55 12 1 0 0 0 0 100
REL. 84.8 11.8 3.0 0.2 0.0 0.0 0.0 0.0100.0 15.2 3.3 0.3 0.0 0.0 0.0 0.0 5.1
ID 84 11 3 0 0 0 0 100

Note:

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