Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 486 - Cheb-ESKA
Code:CZCHHSCHS
Institution:Public Health Service
Region:Karlovarsky
District:Cheb
IHd: 100
Measure method:triethanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 32 38 104 138 153 138 76 70 62 48 67 52 80 73 16 53 53 55 52 31 65 31 33 57 26 19 61 20 37 29 29 58.00 153.00 31.00
2 20 61 22 31 52 22 24 7.00 10 12 16 20 17 18 34 34 28 34 14 36 17 32 14 11 15 9.00 8.00 10 ~ ~ ~ 22.43 61.00 28.00
3 31 42 45 62 57 57 29 57 41 35 19 52 73 39 40 44 47 38 34 38 28 31 35 33 34 18 64 39 39 47 64 42.32 73.00 31.00
4 53 24 43 41 26 27 31 19 33 9.00 14 38 46 38 22 30 36 51 62 54 36 31 49 38 33 17 17 30 20 8.00 ~ 32.53 62.00 30.00
5 49 57 32 29 40 34 42 26 24 22 27 28 38 29 24 65 ~ 39 30 54 32 34 31 26 21 25 22 42 39 35 33 34.30 65.00 30.00
6 18 40 52 30 20 34 28 30 29 20 31 70 24 29 28 31 34 30 36 26 40 41 47 34 26 58 23 26 31 23 ~ 32.97 70.00 30.00
7 25 29 26 49 28 30 30 29 28 26 32 34 30 30 32 43 39 20 38 18 37 25 31 28 34 36 22 27 21 34 44 30.81 49.00 31.00
8 22 28 24 46 34 32 46 10 31 25 37 25 25 46 58 53 36 32 39 44 28 32 41 27 22 9.00 17 10 32 35 34 31.61 58.00 31.00
9 21 35 34 35 20 29 32 30 26 25 36 26 37 18 32 28 28 35 40 42 38 25 26 109 47 27 7.00 24 46 46 ~ 33.47 109.00 30.00
10 32 57 37 46 18 47 45 61 24 32 42 36 42 26 23 22 27 33 20 45 34 26 24 31 17 23 18 21 25 38 22 32.06 61.00 31.00
11 25 13 23 9.00 12 21 27 24 9.00 13 24 17 39 26 42 43 35 28 28 12 30 38 27 36 50 42 22 44 25 12 ~ 26.53 50.00 30.00
12 19 53 38 39 18 33 21 20 38 30 17 30 52 55 58 47 10 11 47 34 22 18 20 39 41 27 17 16 29 17 20 30.19 58.00 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. 39 41 6 3 1 0 0 0 90 51 10 4 1 0 0 0 153
REL. 43.3 45.5 6.6 3.3 1.1 0.0 0.0 0.0 100.0 56.7 11.1 4.4 1.1 0.0 0.0 0.05.1
ID 43 45 6 6 5 0 0 0 107
ABS. 53 36 1 0 0 0 0 0 90 37 1 0 0 0 0 0 70
REL. 58.8 40.0 1.1 0.0 0.0 0.0 0.0 0.0 100.0 41.1 1.1 0.0 0.0 0.0 0.0 0.0 12.6
ID 58 40 1 0 0 0 0 0 100
ABS. 56 35 0 1 0 0 0 0 92 36 1 1 0 0 0 0 109
REL. 60.8 38.0 0.0 1.0 0.0 0.0 0.0 0.0100.0 39.1 1.1 1.1 0.0 0.0 0.0 0.0 24.9
ID 60 38 0 2 0 0 0 0 101
ABS. 59 33 0 0 0 0 0 0 92 33 0 0 0 0 0 0 61
REL 64.1 35.8 0.0 0.0 0.0 0.0 0.0 0.0100.0 35.9 0.0 0.0 0.0 0.0 0.0 0.0 8.10
ID 64 35 0 0 0 0 0 0 100
Year
ABS. 207 145 7 4 1 0 0 0 364 157 12 5 1 0 0 0 153
REL. 56.8 39.8 1.9 1.0 0.2 0.0 0.0 0.0100.0 43.1 3.3 1.4 0.3 0.0 0.0 0.0 5.1
ID 56 39 1 2 1 0 0 0 102

Note:

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