Detailed overview of ambient air pollution valuis from individual stations

1037 - Cheb

Year: 1997
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1037 - Cheb
Code:CZCHCMCHE
Institution:CHMI
Region:Zapadocesky
District:Cheb
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 65 53 33 50 47 61 43 36 27 56 31 28 128 188 169 195 284 137 128 94 60 32 99 169 88 34 65 46 37 31 27 82.00 283.74 31.00
2 26 46 60 51 32 35 42 60 57 39 18 15 10 21 23 15 25 24 21 18 12 22 27 21 11 16 25 24 ~ ~ ~ 28.34 59.91 28.00
3 28 20 23 13 29 55 48 32 48 55 58 46 49 37 23 17 18 18 25 21 27 18 13 29 54 32 24 14 13 14 23 29.87 58.22 31.00
4 32 42 33 19 18 19 29 49 33 38 26 14 18 24 16 24 26 24 16 23 25 32 28 26 28 21 16 19 21 21 ~ 25.37 49.18 30.00
5 22 24 20 17 16 12 17 15 13 17 18 19 25 23 29 20 20 13 18 14 14 19 21 16 20 20 15 19 16 15 14 18.09 29.37 31.00
6 17 27 33 29 18 20 14 16 23 19 16 17 21 13 20 23 27 27 22 21 13 12 14 16 16 19 20 20 15 14 ~ 19.36 32.72 30.00
7 18 17 17 20 14 12 14 16 18 20 21 17 21 32 22 25 26 17 13 12 22 21 24 18 17 15 15 15 25 21 19 18.84 31.68 31.00
8 17 17 27 24 22 22 27 24 22 23 27 32 27 25 20 20 25 48 28 34 27 29 34 23 33 24 35 17 20 16 22 25.54 48.13 31.00
9 27 28 31 32 27 20 17 20 20 23 36 22 14 26 36 53 49 44 38 21 33 53 45 44 52 40 26 40 42 45 ~ 33.46 53.04 30.00
10 35 20 19 23 37 54 47 21 16 17 13 15 20 24 27 41 56 49 53 38 40 49 48 21 21 17 27 40 104 40 44 34.73 103.99 31.00
11 50 33 28 30 40 79 65 43 26 51 49 39 50 37 38 35 30 23 21 33 75 76 58 21 22 36 39 47 ~ 27 ~ 41.38 79.45 29.00
12 ~ 37 40 35 43 39 33 ~ 59 28 ~ 24 ~ ~ ~ ~ 15 19 33 37 40 68 61 25 14 10 14 18 19 21 54 32.84 68.23 24.00

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. 48 31 3 3 4 1 0 0 90 42 11 8 5 1 0 0 284
REL. 53.3 34.4 3.3 3.3 4.4 1.1 0.0 0.0 100.0 46.7 12.2 8.9 5.6 1.1 0.0 0.017.1
ID 53 34 3 6 22 27 0 0 147
ABS. 87 4 0 0 0 0 0 0 91 4 0 0 0 0 0 0 49
REL. 95.6 4.3 0.0 0.0 0.0 0.0 0.0 0.0 100.0 4.4 0.0 0.0 0.0 0.0 0.0 0.0 8.4
ID 95 4 0 0 0 0 0 0 100
ABS. 73 19 0 0 0 0 0 0 92 19 0 0 0 0 0 0 53
REL. 79.3 20.6 0.0 0.0 0.0 0.0 0.0 0.0100.0 20.7 0.0 0.0 0.0 0.0 0.0 0.0 16.9
ID 79 20 0 0 0 0 0 0 100
ABS. 38 41 4 1 0 0 0 0 84 46 5 1 0 0 0 0 104
REL 45.2 48.8 4.7 1.1 0.0 0.0 0.0 0.0100.0 54.8 6.0 1.2 0.0 0.0 0.0 0.029.10
ID 45 48 4 2 0 0 0 0 101
Year
ABS. 246 95 7 4 4 1 0 0 357 111 16 9 5 1 0 0 284
REL. 68.9 26.6 1.9 1.1 1.1 0.2 0.0 0.0100.0 31.1 4.5 2.5 1.4 0.3 0.0 0.0 17.1
ID 68 26 1 2 5 7 0 0 112

Note:

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

Detailed overview of ambient air pollution valuis from individual stations - selection station