Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1248 - Olomouc-Hodolany
Code:CZOLMOOHO
Institution:MU-OLOMOUC
Region:Severomoravsky
District:Olomouc
IHd: 100
Measure method:coulometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 98 104 73 84 107 79 77 89 88 73 61 73 82 78 143 110 91 89 89 115 90 102 116 103 132 167 144 23 161 28 50 94.19 167.26 31.00
2 154 69 ~ 39 90 56 64 24 23 87 129 132 ~ ~ ~ 6.40 13 25 27 42 23 25 39 20 22 16 12 11 ~ ~ ~ 47.91 154.19 24.00
3 15 16 16 12 13 16 12 15 22 30 32 37 30 26 31 35 29 23 28 33 29 33 43 46 48 53 47 21 34 41 47 29.55 53.02 31.00
4 41 24 21 19 24 23 23 27 35 34 27 22 27 35 43 28 24 20 23 37 37 27 28 27 35 41 62 56 53 49 ~ 32.36 61.75 30.00
5 39 36 29 39 51 54 52 54 52 53 53 31 13 23 21 15 17 26 ~ 25 17 20 22 26 23 22 24 34 33 26 18 31.61 54.04 30.00
6 9 14 12 12 17 20 15 10 8.06 15 ~ ~ ~ 20 16 12 13 17 19 10 8.50 10 12 9 6.83 10 ~ ~ 7.44 15 ~ 12.77 20.42 25.00
7 18 13 14 26 48 49 49 16 11 10 8.29 6.88 7.79 13 31 31 29 16 16 24 23 30 26 15 52 62 60 59 61 26 13 27.83 62.17 31.00
8 12 8.79 12 14 16 20 30 23 19 24 34 43 20 20 24 24 27 23 26 33 24 15 16 16 26 30 27 29 22 20 25 22.77 43.38 31.00
9 28 34 31 26 17 12 18 18 15 18 14 7.98 14 19 22 22 12 10 8.81 12 13 16 21 20 19 12 7.96 8.38 8.50 12 ~ 16.55 33.54 30.00
10 10 12 6.90 9 13 9 11 12 15 13 10 11 17 13 9 16 10 14 20 20 22 18 20 12 13 18 19 16 24 23 24 14.80 24.08 31.00
11 21 23 24 22 22 26 26 25 23 17 23 30 27 17 14 17 ~ 19 36 30 28 32 37 47 34 30 28 26 24 28 ~ 26.11 47.23 29.00
12 30 35 31 23 28 34 41 39 40 40 68 ~ ~ 61 51 24 30 26 20 20 35 35 28 37 28 28 32 39 35 34 ~ 34.80 68.46 28.00

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 17 18 12 3 0 0 0 86 50 33 15 3 0 0 0 167
REL. 41.8 19.7 20.9 13.9 3.4 0.0 0.0 0.0 100.0 58.1 38.4 17.4 3.5 0.0 0.0 0.026.1
ID 41 19 20 27 17 0 0 0 127
ABS. 61 24 0 0 0 0 0 0 85 24 0 0 0 0 0 0 62
REL. 71.7 28.2 0.0 0.0 0.0 0.0 0.0 0.0 100.0 28.2 0.0 0.0 0.0 0.0 0.0 0.0 27.4
ID 71 28 0 0 0 0 0 0 100
ABS. 81 11 0 0 0 0 0 0 92 11 0 0 0 0 0 0 62
REL. 88.0 11.9 0.0 0.0 0.0 0.0 0.0 0.0100.0 12.0 0.0 0.0 0.0 0.0 0.0 0.0 26.7
ID 88 11 0 0 0 0 0 0 100
ABS. 69 18 1 0 0 0 0 0 88 19 1 0 0 0 0 0 68
REL 78.4 20.4 1.1 0.0 0.0 0.0 0.0 0.0100.0 21.6 1.1 0.0 0.0 0.0 0.0 0.011.12
ID 78 20 1 0 0 0 0 0 100
Year
ABS. 247 70 19 12 3 0 0 0 351 104 34 15 3 0 0 0 167
REL. 70.3 19.9 5.4 3.4 0.8 0.0 0.0 0.0100.0 29.6 9.7 4.3 0.9 0.0 0.0 0.0 26.1
ID 70 19 5 6 4 0 0 0 106

Note:

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