Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1025 - Litomerice-Mlekojedy
Code:CZLTCMLIM
Institution:Czech Hydrometeorological Institute
Region:Ustecky
District:Litomerice
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 24 21 47 51 40 31 43 112 54 60 49 35 42 44 59 49 33 37 42 28 16 20 26 28 46 87 23 52 70 63 24 43.74 111.93 31.00
2 35 26 25 39 49 118 59 113 42 27 71 141 31 34 98 113 32 20 23 12 17 10 14 21 49 67 41 37 ~ ~ ~ 48.81 140.71 28.00
3 49 35 23 32 20 30 30 24 42 19 25 25 19 20 41 41 20 28 14 12 19 34 24 24 15 12 11 14 18 46 32 25.87 49.16 31.00
4 40 43 42 28 22 28 16 13 22 34 26 10 8.26 11 19 20 21 23 21 13 8.41 14 24 46 18 21 22 16 19 18 ~ 22.15 45.88 30.00
5 16 14 15 14 10 7.04 11 19 19 14 9 11 23 14 21 16 17 ~ ~ ~ 9.00 22 19 20 14 14 14 15 11 11 15 14.78 23.35 28.00
6 11 12 4.82 8.57 22 26 20 13 11 11 14 18 22 23 14 12 19 10 10 13 23 11 7.53 14 17 16 18 18 16 12 ~ 14.91 25.64 30.00
7 11 14 12 14 14 7.56 11 16 17 18 21 14 15 16 7.14 10 14 17 16 14 15 17 13 13 12 16 16 14 12 19 17 14.32 20.93 31.00
8 13 17 20 12 16 13 20 17 15 13 12 13 33 22 18 16 11 12 21 14 12 16 20 19 17 19 12 7.09 24 17 37 17.00 37.16 31.00
9 15 14 21 21 17 18 18 10 18 15 17 20 33 19 17 24 17 23 18 23 21 21 15 20 23 24 37 22 28 30 ~ 20.65 36.58 30.00
10 27 32 35 22 34 29 23 51 50 50 21 47 53 57 49 60 40 33 61 25 27 32 33 30 39 25 20 37 39 31 34 36.91 61.28 31.00
11 8.44 19 30 32 25 40 26 24 10 43 58 54 20 38 92 83 31 42 29 54 65 28 11 20 40 48 51 40 42 23 ~ 37.56 92.18 30.00
12 16 16 27 37 62 34 16 17 45 97 66 14 28 44 38 14 45 29 43 16 29 21 20 21 20 15 16 17 17 14 12 29.31 96.65 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. 46 34 5 5 0 0 0 0 90 44 10 5 0 0 0 0 141
REL. 51.1 37.7 5.5 5.5 0.0 0.0 0.0 0.0 100.0 48.9 11.1 5.6 0.0 0.0 0.0 0.012.2
ID 51 37 5 11 0 0 0 0 105
ABS. 83 5 0 0 0 0 0 0 88 5 0 0 0 0 0 0 46
REL. 94.3 5.6 0.0 0.0 0.0 0.0 0.0 0.0 100.0 5.7 0.0 0.0 0.0 0.0 0.0 0.0 24.4
ID 94 5 0 0 0 0 0 0 100
ABS. 89 3 0 0 0 0 0 0 92 3 0 0 0 0 0 0 37
REL. 96.7 3.2 0.0 0.0 0.0 0.0 0.0 0.0100.0 3.3 0.0 0.0 0.0 0.0 0.0 0.0 31.8
ID 96 3 0 0 0 0 0 0 100
ABS. 51 38 3 0 0 0 0 0 92 41 3 0 0 0 0 0 97
REL 55.4 41.3 3.2 0.0 0.0 0.0 0.0 0.0100.0 44.6 3.3 0.0 0.0 0.0 0.0 0.010.12
ID 55 41 3 0 0 0 0 0 100
Year
ABS. 269 80 8 5 0 0 0 0 362 93 13 5 0 0 0 0 141
REL. 74.3 22.0 2.2 1.3 0.0 0.0 0.0 0.0100.0 25.7 3.6 1.4 0.0 0.0 0.0 0.0 12.2
ID 74 22 2 2 0 0 0 0 101

Note:

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