Detailed overview of ambient air pollution valuis from individual stations


Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 954 - Drahotuse
Code:CZPRCMDRA
Institution:Czech Hydrometeorological Institute
Region:Severomoravsky
District:Prerov
IHd: 100
Measure method:guajacol (modif. Jakobs-Hochheiser) - spectrophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 49 56 50 54 91 122 62 26 35 102 134 163 58 14 34 43 36 39 71 18 37 26 34 102 63 45 42 88 20 29 82 58.87 163.00 31.00
2 82 55 86 29 25 51 48 21 31 38 69 26 14 79 40 63 89 74 28 32 68 62 85 31 27 45 39 20 24 ~ ~ 47.62 89.00 29.00
3 35 49 21 13 25 36 24 16 23 40 17 41 40 19 27 47 36 28 33 39 49 41 58 56 29 38 32 33 50 10 29 33.35 58.00 31.00
4 24 35 10 25 26 31 35 24 38 45 31 24 34 17 8.00 26 38 24 35 37 48 28 18 40 16 34 42 36 17 16 ~ 28.73 48.00 30.00
5 32 42 61 43 38 30 31 28 26 29 34 29 29 39 48 40 31 19 21 15 31 20 38 41 27 48 8.00 11 21 31 39 31.61 61.00 31.00
6 38 32 25 33 45 29 36 33 38 28 31 32 31 37 20 22 18 25 36 37 30 28 ~ ~ ~ ~ 36 32 32 24 ~ 31.08 45.00 26.00
7 20 26 27 16 18 22 22 11 17 16 19 19 27 11 11 7.00 10 21 27 23 22 13 20 28 29 25 29 17 12 20 25 19.68 29.00 31.00
8 33 21 17 22 28 26 31 30 38 33 38 22 31 37 44 30 32 33 40 39 34 33 40 34 46 27 33 46 43 47 35 33.65 47.00 31.00
9 39 19 8.00 24 29 26 39 28 27 33 53 41 39 35 43 19 24 36 32 26 27 30 27 22 32 44 38 42 42 6.00 ~ 31.00 53.00 30.00
10 7.00 21 45 51 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 29 17 28.33 51.00 6.00
11 37 21 10 16 49 7.00 26 49 73 114 78 27 109 33 44 48 47 33 51 52 25 98 24 34 55 19 39 44 107 100 ~ 48.97 114.00 30.00
12 62 30 16 28 63 48 31 33 27 ~ 48 84 107 46 33 16 43 77 68 105 76 47 ~ 24 37 64 85 72 74 24 52 52.41 107.00 29.00

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. 34 40 12 4 1 0 0 0 91 57 17 5 1 0 0 0 163
REL. 37.3 43.9 13.1 4.3 1.0 0.0 0.0 0.0 100.0 62.6 18.7 5.5 1.1 0.0 0.0 0.012.1
ID 37 43 13 8 5 0 0 0 108
ABS. 54 33 0 0 0 0 0 0 87 33 0 0 0 0 0 0 61
REL. 62.0 37.9 0.0 0.0 0.0 0.0 0.0 0.0 100.0 37.9 0.0 0.0 0.0 0.0 0.0 0.0 3.5
ID 62 37 0 0 0 0 0 0 100
ABS. 66 26 0 0 0 0 0 0 92 26 0 0 0 0 0 0 53
REL. 71.7 28.2 0.0 0.0 0.0 0.0 0.0 0.0100.0 28.3 0.0 0.0 0.0 0.0 0.0 0.0 11.9
ID 71 28 0 0 0 0 0 0 100
ABS. 25 24 11 5 0 0 0 0 65 40 16 5 0 0 0 0 114
REL 38.4 36.9 16.9 7.6 0.0 0.0 0.0 0.0100.0 61.5 24.6 7.7 0.0 0.0 0.0 0.010.11
ID 38 36 16 15 0 0 0 0 107
Year
ABS. 179 123 23 9 1 0 0 0 335 156 33 10 1 0 0 0 163
REL. 53.4 36.7 6.8 2.6 0.2 0.0 0.0 0.0100.0 46.6 9.9 3.0 0.3 0.0 0.0 0.0 12.1
ID 53 36 6 5 1 0 0 0 103

Note:

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