Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1016 - Liberec-mesto
Code:CZLBCMLIM
Institution:Czech Hydrometeorological Institute
Region:Liberecky
District:Liberec
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 43 42 56 51 51 77 55 69 76 67 56 58 71 53 81 59 51 42 53 47 48 61 52 45 57 80 47 84 93 47 45 58.69 93.08 31.00
2 ~ ~ ~ ~ 47 50 ~ ~ 41 46 28 55 20 40 141 188 23 15 25 17 16 14 20 41 35 56 48 23 ~ ~ ~ 44.96 187.95 22.00
3 44 54 29 47 30 38 26 27 50 27 31 39 27 38 53 73 24 31 19 ~ ~ ~ 49 37 18 24 26 21 25 50 36 35.49 72.90 28.00
4 64 42 41 25 33 42 24 13 32 46 24 15 16 13 26 37 26 43 48 26 10 12 74 64 30 45 32 24 31 29 ~ 32.93 74.43 30.00
5 32 37 42 19 10 8.01 13 24 47 42 13 21 21 25 32 30 27 22 21 27 16 35 42 41 28 24 13 18 14 27 23 25.55 46.77 31.00
6 16 18 7.53 22 34 42 37 25 19 13 29 39 54 45 31 18 23 ~ ~ ~ 38 16 10 31 34 40 33 20 34 16 ~ 27.67 53.98 27.00
7 12 17 21 32 19 11 12 16 25 28 27 20 21 26 8.96 15 24 23 45 16 25 33 15 17 15 36 29 24 19 32 21 22.18 44.88 31.00
8 29 28 26 20 25 25 21 20 24 32 17 16 48 36 19 30 18 26 35 28 18 19 37 35 33 26 19 9 26 24 27 25.63 48.40 31.00
9 16 18 37 29 18 40 26 9 10 16 19 27 28 39 24 16 15 31 23 32 38 38 38 26 22 41 35 27 46 36 ~ 27.38 46.41 30.00
10 37 35 40 53 59 27 24 43 70 110 67 62 41 57 38 75 38 35 33 15 31 30 27 32 52 29 22 44 56 70 36 44.73 110.25 31.00
11 14 36 39 30 49 39 30 23 26 43 31 50 35 56 61 39 44 42 45 48 79 30 16 18 65 87 68 101 70 41 ~ 45.19 101.07 30.00
12 25 40 57 49 70 67 29 18 89 62 65 18 42 39 41 17 27 33 36 38 39 37 45 18 19 26 26 27 38 21 20 37.99 89.22 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. 25 44 10 1 1 0 0 0 81 56 12 2 1 0 0 0 188
REL. 30.8 54.3 12.3 1.2 1.2 0.0 0.0 0.0 100.0 69.1 14.8 2.5 1.2 0.0 0.0 0.016.2
ID 30 54 12 2 6 0 0 0 106
ABS. 60 27 1 0 0 0 0 0 88 28 1 0 0 0 0 0 74
REL. 68.1 30.6 1.1 0.0 0.0 0.0 0.0 0.0 100.0 31.8 1.1 0.0 0.0 0.0 0.0 0.0 23.4
ID 68 30 1 0 0 0 0 0 100
ABS. 75 17 0 0 0 0 0 0 92 17 0 0 0 0 0 0 48
REL. 81.5 18.4 0.0 0.0 0.0 0.0 0.0 0.0100.0 18.5 0.0 0.0 0.0 0.0 0.0 0.0 13.8
ID 81 18 0 0 0 0 0 0 100
ABS. 33 46 11 2 0 0 0 0 92 59 13 2 0 0 0 0 110
REL 35.8 50.0 11.9 2.1 0.0 0.0 0.0 0.0100.0 64.1 14.1 2.2 0.0 0.0 0.0 0.010.10
ID 35 50 11 4 0 0 0 0 102
Year
ABS. 193 134 22 3 1 0 0 0 353 160 26 4 1 0 0 0 188
REL. 54.6 37.9 6.2 0.8 0.2 0.0 0.0 0.0100.0 45.3 7.4 1.1 0.3 0.0 0.0 0.0 16.2
ID 54 37 6 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