Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 488 - Cheb-zubni odd.
Code:CZCHHSCHZ
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 ~ 8.00 78 76 155 120 79 103 39 57 41 33 34 41 62 31 39 39 49 26 22 44 28 18 28 29 ~ 15 18 40 29 47.62 155.00 29.00
2 32 65 55 50 35 41 33 12 21 11 22 15 23 34 5.00 9.00 7.00 12 18 17 11 13 12 7.00 36 10 14 9.00 ~ ~ ~ 22.46 65.00 28.00
3 16 20 26 33 74 24 20 31 18 32 66 72 39 33 11 31 31 26 11 23 22 15 20 22 32 18 33 41 46 43 40 31.26 74.00 31.00
4 68 35 33 30 32 36 37 45 27 17 11 11 31 30 25 16 36 45 41 30 34 29 37 18 28 20 15 18 13 25 ~ 29.10 68.00 30.00
5 29 32 23 16 23 27 25 23 27 31 33 35 26 20 35 8.00 25 19 16 21 31 30 32 18 23 13 17 23 21 10 13 23.39 35.00 31.00
6 18 8.00 26 28 55 15 22 14 24 13 16 19 8.00 21 20 21 30 22 22 9.00 13 8.00 8.00 9.00 19 19 7.00 6.00 7.00 10 ~ 17.23 55.00 30.00
7 9.00 12 13 19 18 9.00 7.00 13 23 18 17 25 14 12 13 18 18 15 15 17 33 15 13 11 7.00 10 7.00 11 22 18 20 15.23 33.00 31.00
8 15 19 10 10 15 13 15 14 13 11 16 11 10 9.00 24 32 25 22 17 49 14 30 32 19 14 5.00 8.00 9.00 51 45 17 19.16 51.00 31.00
9 11 34 26 42 28 22 27 45 27 23 29 31 25 18 22 26 24 45 34 26 21 16 16 26 43 22 33 25 32 53 ~ 28.40 53.00 30.00
10 28 23 25 51 21 30 23 33 22 14 25 38 31 19 29 26 30 19 14 36 51 63 36 55 37 28 25 27 44 38 21 31.03 63.00 31.00
11 41 14 37 19 17 41 16 14 14 22 32 20 41 55 23 90 65 38 39 27 31 37 43 22 53 43 46 37 15 39 ~ 34.37 90.00 30.00
12 25 20 32 32 61 42 24 32 36 36 31 18 23 19 27 36 43 49 48 7.00 ~ ~ ~ ~ ~ ~ ~ ~ ~ 34 37 32.36 61.00 22.00

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. 56 24 5 2 1 0 0 0 88 32 8 3 1 0 0 0 155
REL. 63.6 27.2 5.6 2.2 1.1 0.0 0.0 0.0 100.0 36.4 9.1 3.4 1.1 0.0 0.0 0.05.1
ID 63 27 5 4 5 0 0 0 106
ABS. 78 12 1 0 0 0 0 0 91 13 1 0 0 0 0 0 68
REL. 85.7 13.1 1.0 0.0 0.0 0.0 0.0 0.0 100.0 14.3 1.1 0.0 0.0 0.0 0.0 0.0 1.4
ID 85 13 1 0 0 0 0 0 100
ABS. 82 10 0 0 0 0 0 0 92 10 0 0 0 0 0 0 53
REL. 89.1 10.8 0.0 0.0 0.0 0.0 0.0 0.0100.0 10.9 0.0 0.0 0.0 0.0 0.0 0.0 30.9
ID 89 10 0 0 0 0 0 0 100
ABS. 47 35 1 0 0 0 0 0 83 36 1 0 0 0 0 0 90
REL 56.6 42.1 1.2 0.0 0.0 0.0 0.0 0.0100.0 43.4 1.2 0.0 0.0 0.0 0.0 0.016.11
ID 56 42 1 0 0 0 0 0 100
Year
ABS. 263 81 7 2 1 0 0 0 354 91 10 3 1 0 0 0 155
REL. 74.2 22.8 1.9 0.5 0.2 0.0 0.0 0.0100.0 25.7 2.8 0.8 0.3 0.0 0.0 0.0 5.1
ID 74 22 1 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