Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1005 - Most
Code:CZMOCMMOS
Institution:Czech Hydrometeorological Institute
Region:Ustecky
District:Most
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 32 44 69 72 110 45 74 82 42 96 56 75 106 63 75 105 28 49 66 44 28 32 43 50 66 66 26 52 80 68 37 60.70 109.73 31.00
2 38 29 40 71 58 130 127 65 42 83 118 158 66 89 204 191 33 15 18 12 16 13 16 34 57 85 71 50 ~ ~ ~ 68.88 203.61 28.00
3 48 66 37 56 27 44 62 37 75 30 21 30 17 18 51 80 39 55 15 21 34 45 45 41 40 18 21 26 32 52 57 40.09 80.31 31.00
4 78 86 70 37 21 30 29 17 38 68 33 13 13 10 14 17 18 27 42 28 13 14 58 74 32 26 25 23 40 45 ~ 34.63 86.03 30.00
5 35 34 24 34 17 19 24 31 36 47 19 23 53 38 37 19 22 18 18 28 22 27 51 51 33 32 15 19 14 19 18 28.35 53.21 31.00
6 13 15 6.73 11 52 49 31 27 24 16 17 29 39 48 31 20 ~ 13 16 36 27 13 10 28 33 41 36 23 35 21 ~ 26.32 52.09 29.00
7 12 32 19 26 21 12 10 13 ~ 38 19 20 29 36 16 20 37 32 37 27 27 34 42 26 16 38 38 35 41 39 20 26.98 41.51 30.00
8 26 33 31 21 16 24 26 19 34 17 21 21 65 45 29 25 24 23 42 27 24 40 47 55 42 52 21 12 60 34 60 32.71 65.49 31.00
9 22 18 33 26 19 23 22 ~ ~ ~ 17 22 35 29 23 22 41 41 34 22 30 42 38 44 31 63 43 53 55 39 ~ 32.94 63.15 27.00
10 41 38 34 54 74 60 48 80 88 43 32 101 103 109 86 107 53 65 82 41 29 49 70 58 115 46 36 28 25 29 28 59.73 114.93 31.00
11 12 26 46 62 51 45 31 27 20 105 110 77 61 118 146 74 82 40 33 58 41 20 12 37 62 86 97 43 47 37 ~ 56.91 146.40 30.00
12 35 42 44 61 153 68 51 33 107 75 82 19 29 74 44 11 16 23 27 16 21 19 16 16 10 11 16 16 17 11 10 37.75 152.86 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. 25 40 16 6 2 1 0 0 90 65 25 9 3 1 0 0 204
REL. 27.7 44.4 17.7 6.6 2.2 1.1 0.0 0.0 100.0 72.2 27.8 10.0 3.3 1.1 0.0 0.015.2
ID 27 44 17 13 11 27 0 0 142
ABS. 60 25 5 0 0 0 0 0 90 30 5 0 0 0 0 0 86
REL. 66.6 27.7 5.5 0.0 0.0 0.0 0.0 0.0 100.0 33.3 5.6 0.0 0.0 0.0 0.0 0.0 2.4
ID 66 27 5 0 0 0 0 0 100
ABS. 52 36 0 0 0 0 0 0 88 36 0 0 0 0 0 0 65
REL. 59.0 40.9 0.0 0.0 0.0 0.0 0.0 0.0100.0 40.9 0.0 0.0 0.0 0.0 0.0 0.0 13.8
ID 59 40 0 0 0 0 0 0 100
ABS. 32 34 15 10 1 0 0 0 92 60 26 11 1 0 0 0 153
REL 34.7 36.9 16.3 10.8 1.0 0.0 0.0 0.0100.0 65.2 28.3 12.0 1.1 0.0 0.0 0.0 5.12
ID 34 36 16 21 5 0 0 0 115
Year
ABS. 169 135 36 16 3 1 0 0 360 191 56 20 4 1 0 0 204
REL. 46.9 37.5 10.0 4.4 0.8 0.2 0.0 0.0100.0 53.1 15.6 5.6 1.1 0.3 0.0 0.0 15.2
ID 46 37 10 8 4 6 0 0 114

Note:

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