Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
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 31 46 48 66 85 31 27 60 20 53 59 35 41 68 66 50 28 35 44 47 30 34 43 45 76 25 28 12 40 35 34 43.29 85.00 31.00
2 22 20 39 64 61 22 72 43 54 17 37 81 62 22 84 99 55 13 19 18 16 15 17 18 32 70 53 38 ~ ~ ~ 41.54 99.00 28.00
3 38 32 41 35 31 33 36 38 51 31 12 16 13 12 21 74 64 35 16 18 43 46 42 43 46 23 26 25 30 27 24 32.97 74.00 31.00
4 24 53 40 38 12 19 31 14 17 37 33 17 12 10 12 11 19 16 15 36 15 11 20 33 34 15 19 15 20 27 ~ 22.50 53.00 30.00
5 18 28 22 29 20 9.00 14 20 27 21 18 13 13 32 30 12 16 16 11 14 27 22 20 38 19 21 13 13 13 13 21 19.45 38.00 31.00
6 12 14 5.00 9.00 17 41 17 23 19 17 14 15 28 34 25 16 15 15 14 15 24 15 8.00 8.00 12 18 32 19 15 20 ~ 17.87 41.00 30.00
7 8.00 14 19 28 19 17 16 11 10 15 14 7.00 15 24 17 17 15 20 22 30 11 20 23 23 16 14 27 23 27 21 24 18.29 30.00 31.00
8 13 28 31 11 12 18 15 24 13 20 11 14 46 50 24 27 24 21 21 34 19 19 33 26 25 31 23 12 17 29 47 23.81 50.00 31.00
9 27 11 23 15 19 12 14 8.00 6.00 13 10 15 24 14 18 12 22 19 32 14 15 21 34 41 24 40 33 24 40 21 ~ 20.70 41.00 30.00
10 29 19 20 19 69 50 50 69 29 44 17 38 58 65 64 70 73 33 43 44 20 18 63 51 64 44 33 24 14 19 24 41.19 73.00 31.00
11 11 17 23 31 22 36 20 19 19 20 31 67 44 35 63 31 66 39 31 31 34 29 16 16 44 75 97 39 26 50 ~ 36.07 97.00 30.00
12 32 43 60 53 150 73 43 36 54 86 65 43 36 71 93 30 26 32 34 22 31 19 14 22 15 11 15 18 14 14 14 40.94 150.00 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 42 9 0 0 0 0 0 90 51 9 0 0 0 0 0 99
REL. 43.3 46.6 10.0 0.0 0.0 0.0 0.0 0.0 100.0 56.7 10.0 0.0 0.0 0.0 0.0 0.016.2
ID 43 46 10 0 0 0 0 0 100
ABS. 82 9 0 0 0 0 0 0 91 9 0 0 0 0 0 0 53
REL. 90.1 9.8 0.0 0.0 0.0 0.0 0.0 0.0 100.0 9.9 0.0 0.0 0.0 0.0 0.0 0.0 2.4
ID 90 9 0 0 0 0 0 0 100
ABS. 84 8 0 0 0 0 0 0 92 8 0 0 0 0 0 0 50
REL. 91.3 8.6 0.0 0.0 0.0 0.0 0.0 0.0100.0 8.7 0.0 0.0 0.0 0.0 0.0 0.0 14.8
ID 91 8 0 0 0 0 0 0 100
ABS. 47 33 11 1 0 0 0 0 92 45 12 1 0 0 0 0 150
REL 51.0 35.8 11.9 1.0 0.0 0.0 0.0 0.0100.0 48.9 13.0 1.1 0.0 0.0 0.0 0.0 5.12
ID 51 35 11 2 0 0 0 0 101
Year
ABS. 252 92 20 1 0 0 0 0 365 113 21 1 0 0 0 0 150
REL. 69.0 25.2 5.4 0.2 0.0 0.0 0.0 0.0100.0 31.0 5.8 0.3 0.0 0.0 0.0 0.0 5.12
ID 69 25 5 0 0 0 0 100

Note:

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