Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1075 - Olomouc
Code:CZOLCMOLO
Institution:CHMI
Region:Severomoravsky
District:Olomouc
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 33 55 28 21 23 19 51 26 23 54 26 ~ ~ ~ 96 80 35 25 38 24 11 19 29 41 39 110 150 72 148 68 34 49.21 149.87 28.00
2 85 55 60 103 164 151 122 77 78 130 152 101 44 83 77 41 29 77 67 105 65 52 52 39 52 66 38 15 ~ ~ ~ 77.89 164.27 28.00
3 25 23 28 35 8.87 23 13 17 13 18 31 38 17 8.16 22 19 48 62 15 11 5.41 13 25 12 24 49 35 55 46 49 49 27.05 62.10 31.00
4 47 62 31 13 20 26 29 29 36 22 19 10 20 44 28 29 33 11 12 21 19 33 42 18 27 21 16 28 27 23 ~ 26.50 62.24 30.00
5 11 11 18 8.81 16 26 24 18 18 20 27 20 13 10 8.23 8.19 7.68 17 14 11 14 6.88 17 18 25 29 29 19 23 16 16 16.85 29.40 31.00
6 14 19 20 18 23 11 10 10 21 19 11 7.13 5.20 6.76 17 16 12 10 12 11 21 12 15 18 24 24 13 19 14 13 ~ 14.79 24.15 30.00
7 11 15 15 5.34 10 11 13 8.95 12 18 5.55 11 12 17 19 9 16 10 12 25 18 13 15 9 14 14 19 13 13 19 23 13.78 25.08 31.00
8 11 16 15 12 12 17 24 16 8.22 17 28 24 16 14 16 22 19 26 18 30 17 7.54 14 24 33 25 19 12 14 18 31 18.65 33.17 31.00
9 25 33 30 42 24 13 42 23 25 19 31 13 19 22 ~ ~ ~ ~ ~ ~ ~ ~ 24 51 36 46 35 22 30 19 ~ 28.43 50.82 22.00
10 20 20 12 20 39 37 51 85 37 19 16 20 37 41 97 60 30 28 34 32 44 59 55 39 28 33 31 22 13 13 19 35.18 97.19 31.00
11 12 35 53 67 26 25 55 75 72 69 42 115 68 28 30 26 17 31 42 21 26 58 121 201 113 112 134 97 57 41 ~ 62.38 200.98 30.00
12 37 68 67 41 49 23 21 26 40 55 113 64 34 45 128 52 147 71 49 38 24 58 64 23 28 26 33 59 95 123 34 55.97 146.62 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. 36 29 11 8 3 0 0 0 87 51 22 11 3 0 0 0 164
REL. 41.3 33.3 12.6 9.1 3.4 0.0 0.0 0.0 100.0 58.6 25.3 12.6 3.4 0.0 0.0 0.05.2
ID 41 33 12 18 17 0 0 0 122
ABS. 85 6 0 0 0 0 0 0 91 6 0 0 0 0 0 0 62
REL. 93.4 6.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 6.6 0.0 0.0 0.0 0.0 0.0 0.0 2.4
ID 93 6 0 0 0 0 0 0 100
ABS. 78 6 0 0 0 0 0 0 84 6 0 0 0 0 0 0 51
REL. 92.8 7.1 0.0 0.0 0.0 0.0 0.0 0.0100.0 7.1 0.0 0.0 0.0 0.0 0.0 0.0 24.9
ID 92 7 0 0 0 0 0 0 100
ABS. 34 36 12 9 0 1 0 0 92 58 22 10 1 1 0 0 201
REL 36.9 39.1 13.0 9.7 0.0 1.0 0.0 0.0100.0 63.0 23.9 10.9 1.1 1.1 0.0 0.024.11
ID 36 39 13 19 0 27 0 0 135
Year
ABS. 233 77 23 17 3 1 0 0 354 121 44 21 4 1 0 0 201
REL. 65.8 21.7 6.4 4.8 0.8 0.2 0.0 0.0100.0 34.2 12.4 5.9 1.1 0.3 0.0 0.024.11
ID 65 21 6 9 4 7 0 0 114

Note:

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