Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1016 - Liberec-mesto
Code:CZLBCMLIM
Institution:Czech Hydrometeorological Institute
Region:Severocesky
District:Liberec
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 39 82 47 51 93 53 56 45 44 41 57 47 37 43 39 41 21 26 37 36 31 43 33 61 79 82 48 74 27 31 40 47.89 93.36 31.00
2 99 45 31 48 90 35 48 ~ 16 29 74 33 20 26 76 39 45 43 53 23 89 56 86 70 32 47 29 30 41 ~ ~ 48.29 98.62 28.00
3 35 25 27 12 14 51 47 26 16 28 24 23 38 39 18 28 21 38 27 39 43 79 81 86 40 24 28 31 44 36 32 35.48 86.11 31.00
4 45 51 28 80 41 15 19 33 50 58 33 37 26 48 34 33 28 57 49 61 69 32 19 16 23 37 23 18 30 44 ~ 37.86 79.82 30.00
5 39 38 42 43 47 29 28 28 41 50 37 19 22 42 53 44 28 32 27 12 28 23 29 41 27 24 17 22 27 21 35 32.05 52.66 31.00
6 34 29 31 37 27 20 29 32 24 17 16 30 31 26 21 18 19 27 45 43 52 25 36 18 14 18 20 18 25 31 ~ 27.12 51.76 30.00
7 29 27 35 26 24 25 19 11 17 28 32 18 24 30 17 14 35 24 15 24 19 24 35 40 33 19 31 20 10 26 44 24.91 44.05 31.00
8 38 39 29 29 28 17 32 26 28 40 32 31 45 65 47 40 43 41 31 21 19 36 45 25 22 15 24 25 46 36 44 33.45 64.64 31.00
9 27 17 12 25 34 33 63 48 34 24 28 33 29 56 33 31 14 38 49 47 29 43 30 31 39 47 36 20 17 14 ~ 32.76 63.39 30.00
10 21 83 92 109 103 29 20 34 51 38 42 86 91 33 14 56 70 40 50 22 17 30 39 58 38 40 35 24 24 35 34 47.01 108.56 31.00
11 42 31 31 37 27 19 47 47 54 58 34 20 38 59 60 65 36 33 27 52 67 48 46 58 41 30 56 47 49 44 ~ 43.40 66.58 30.00
12 40 35 35 56 51 43 41 43 40 32 72 85 50 47 39 30 27 59 104 167 90 51 37 35 41 49 49 93 89 86 46 56.76 166.52 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 42 15 0 0 0 0 0 90 57 15 0 0 0 0 0 99
REL. 36.6 46.6 16.6 0.0 0.0 0.0 0.0 0.0 100.0 63.3 16.7 0.0 0.0 0.0 0.0 0.01.2
ID 36 46 16 0 0 0 0 0 100
ABS. 57 32 2 0 0 0 0 0 91 34 2 0 0 0 0 0 80
REL. 62.6 35.1 2.1 0.0 0.0 0.0 0.0 0.0 100.0 37.4 2.2 0.0 0.0 0.0 0.0 0.0 4.4
ID 62 35 2 0 0 0 0 0 100
ABS. 60 32 0 0 0 0 0 0 92 32 0 0 0 0 0 0 65
REL. 65.2 34.7 0.0 0.0 0.0 0.0 0.0 0.0100.0 34.8 0.0 0.0 0.0 0.0 0.0 0.0 14.8
ID 65 34 0 0 0 0 0 0 100
ABS. 20 57 11 3 1 0 0 0 92 72 15 4 1 0 0 0 167
REL 21.7 61.9 11.9 3.2 1.0 0.0 0.0 0.0100.0 78.3 16.3 4.3 1.1 0.0 0.0 0.020.12
ID 21 61 11 6 5 0 0 0 107
Year
ABS. 170 163 28 3 1 0 0 0 365 195 32 4 1 0 0 0 167
REL. 46.5 44.6 7.6 0.8 0.2 0.0 0.0 0.0100.0 53.4 8.8 1.1 0.3 0.0 0.0 0.020.12
ID 46 44 7 1 1 0 0 0 101

Note:

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