Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
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 11 12 61 163 197 65 35 100 69 81 109 80 47 37 32 49 52 62 42 18 26 42 61 37 21 15 16 17 21 58 48 54.37 197.25 31.00
2 53 87 103 81 161 77 42 23 18 11 21 15 28 38 76 46 115 65 21 20 18 25 11 12 66 25 19 20 ~ ~ ~ 46.27 160.57 28.00
3 24 29 12 87 120 46 16 55 35 42 113 149 108 26 41 37 41 105 31 25 24 17 16 11 19 19 73 ~ 103 80 46 51.66 149.26 30.00
4 76 42 26 32 23 14 23 33 28 24 21 22 24 17 22 55 52 61 28 29 24 82 32 31 36 23 16 27 19 30 ~ 32.33 82.01 30.00
5 26 25 25 24 19 38 23 13 14 21 27 26 35 19 29 44 24 18 25 29 24 26 20 23 16 21 24 18 12 21 26 23.69 44.42 31.00
6 20 35 39 30 13 19 26 19 39 18 27 25 15 31 29 26 39 35 30 17 24 26 15 30 32 33 22 13 11 17 ~ 25.21 39.37 30.00
7 29 26 19 14 21 17 39 32 27 16 53 26 15 19 21 30 39 19 17 22 17 14 18 17 20 26 34 36 32 29 39 25.26 52.76 31.00
8 35 24 25 23 39 25 26 27 32 18 19 14 8.57 26 41 33 26 27 34 29 31 36 44 31 22 24 22 46 55 61 23 29.81 60.71 31.00
9 34 22 34 53 43 68 55 49 41 23 29 39 62 22 15 30 19 38 49 39 29 28 21 17 32 24 22 49 68 89 ~ 38.12 89.26 30.00
10 115 104 61 18 15 13 14 22 24 35 27 23 28 61 51 96 25 21 15 ~ ~ 111 50 69 51 10 10 12 32 54 58 42.24 114.84 29.00
11 63 22 22 31 33 66 57 33 17 52 48 65 106 62 129 150 57 157 37 55 47 69 107 55 130 144 82 37 48 42 ~ 67.49 157.30 30.00
12 50 52 59 71 46 35 37 49 64 126 163 46 76 38 30 82 118 40 151 88 92 59 57 30 23 24 39 41 56 65 33 62.57 163.03 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. 38 28 10 10 3 0 0 0 89 51 23 13 3 0 0 0 197
REL. 42.6 31.4 11.2 11.2 3.3 0.0 0.0 0.0 100.0 57.3 25.8 14.6 3.4 0.0 0.0 0.05.1
ID 42 31 11 22 16 0 0 0 124
ABS. 76 13 2 0 0 0 0 0 91 15 2 0 0 0 0 0 82
REL. 83.5 14.2 2.1 0.0 0.0 0.0 0.0 0.0 100.0 16.5 2.2 0.0 0.0 0.0 0.0 0.0 22.4
ID 83 14 2 0 0 0 0 0 100
ABS. 61 28 3 0 0 0 0 0 92 31 3 0 0 0 0 0 89
REL. 66.3 30.4 3.2 0.0 0.0 0.0 0.0 0.0100.0 33.7 3.3 0.0 0.0 0.0 0.0 0.0 30.9
ID 66 30 3 0 0 0 0 0 100
ABS. 26 41 9 11 3 0 0 0 90 64 23 14 3 0 0 0 163
REL 28.8 45.5 10.0 12.2 3.3 0.0 0.0 0.0100.0 71.1 25.6 15.6 3.3 0.0 0.0 0.011.12
ID 28 45 10 24 16 0 0 0 125
Year
ABS. 201 110 24 21 6 0 0 0 362 161 51 27 6 0 0 0 197
REL. 55.5 30.3 6.6 5.8 1.6 0.0 0.0 0.0100.0 44.5 14.1 7.5 1.7 0.0 0.0 0.0 5.1
ID 55 30 6 11 8 0 0 0 112

Note:

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