Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 537 - Most-OHS
Code:CZMOHSMOH
Institution:Public Health Service
Region:Ustecky
District:Most
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 15 20 33 91 104 85 41 50 72 100 110 86 63 21 36 41 42 41 52 16 18 25 20 23 15 15 12 12 15 18 27 42.55 110.00 31.00
2 30 27 38 34 52 73 31 19 17 9.00 14 15 15 25 36 31 24 42 19 19 13 20 11 9.00 35 31 15 14 ~ ~ ~ 25.64 73.00 28.00
3 15 16 12 23 61 44 18 12 28 10 35 66 77 32 41 32 37 41 35 19 17 16 14 12 24 24 29 45 47 47 46 31.45 77.00 31.00
4 30 48 25 29 36 15 14 28 38 34 24 23 25 20 13 19 38 32 30 19 18 27 30 20 23 23 12 9.00 14 12 ~ 24.27 48.00 30.00
5 24 24 25 22 18 22 25 14 15 17 20 17 20 15 13 14 24 17 12 20 20 18 20 16 14 11 26 19 12 15 25 18.52 26.00 31.00
6 11 11 22 25 16 21 23 14 19 20 11 12 15 11 23 12 18 25 26 21 18 12 14 17 16 24 19 14 9.00 12 ~ 17.03 26.00 30.00
7 13 14 19 10 13 21 11 30 22 18 14 26 18 15 21 24 19 14 10 14 16 9.00 13 12 13 18 18 20 24 22 25 17.29 30.00 31.00
8 30 16 22 19 15 26 15 19 23 18 15 14 10 11 14 14 18 18 19 19 18 23 30 23 19 21 17 19 35 33 24 19.90 35.00 31.00
9 12 22 23 26 32 31 43 25 29 25 21 29 35 18 12 19 19 18 44 46 17 18 32 23 27 23 18 16 28 64 ~ 26.50 64.00 30.00
10 54 72 50 19 14 16 19 32 38 38 39 30 34 62 28 44 17 16 13 16 57 88 59 18 63 11 13 14 23 40 42 34.81 88.00 31.00
11 38 29 24 39 32 43 47 33 17 14 48 22 76 69 88 134 18 89 48 42 63 50 30 46 56 110 65 37 35 34 ~ 49.20 134.00 30.00
12 23 44 65 88 67 46 41 58 57 65 63 46 84 52 35 59 117 29 47 81 109 63 68 37 31 26 46 42 34 44 26 54.61 117.00 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. 55 26 7 2 0 0 0 0 90 35 9 2 0 0 0 0 110
REL. 61.1 28.8 7.7 2.2 0.0 0.0 0.0 0.0 100.0 38.9 10.0 2.2 0.0 0.0 0.0 0.011.1
ID 61 28 7 4 0 0 0 0 102
ABS. 86 5 0 0 0 0 0 0 91 5 0 0 0 0 0 0 48
REL. 94.5 5.4 0.0 0.0 0.0 0.0 0.0 0.0 100.0 5.5 0.0 0.0 0.0 0.0 0.0 0.0 2.4
ID 94 5 0 0 0 0 0 0 100
ABS. 86 6 0 0 0 0 0 0 92 6 0 0 0 0 0 0 64
REL. 93.4 6.5 0.0 0.0 0.0 0.0 0.0 0.0100.0 6.5 0.0 0.0 0.0 0.0 0.0 0.0 30.9
ID 93 6 0 0 0 0 0 0 100
ABS. 30 47 11 4 0 0 0 0 92 62 15 4 0 0 0 0 134
REL 32.6 51.0 11.9 4.3 0.0 0.0 0.0 0.0100.0 67.4 16.3 4.3 0.0 0.0 0.0 0.016.11
ID 32 51 11 8 0 0 0 0 104
Year
ABS. 257 84 18 6 0 0 0 0 365 108 24 6 0 0 0 0 134
REL. 70.4 23.0 4.9 1.6 0.0 0.0 0.0 0.0100.0 29.6 6.6 1.6 0.0 0.0 0.0 0.016.11
ID 70 23 4 3 0 0 0 0 101

Note:

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