Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
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 16 18 41 66 80 59 77 84 64 61 41 28 57 22 71 42 102 218 57 25 34 35 15 18 56 78 103 60 32 4.00 16 54.19 218.00 31.00
2 77 99 55 56 20 16 18 26 46 43 34 23 20 29 61 39 18 109 38 55 20 26 22 40 43 56 33 97 ~ ~ ~ 43.54 109.00 28.00
3 29 48 ~ 11 14 21 32 37 33 37 34 37 35 47 40 38 53 66 69 54 80 93 25 88 15 16 40 31 22 46 53 41.47 93.00 30.00
4 69 31 27 27 38 32 32 32 40 28 24 33 46 16 15 36 19 33 49 22 51 32 29 23 29 38 28 30 26 40 ~ 32.50 69.00 30.00
5 27 23 37 33 37 56 9.00 13 28 17 16 24 33 29 15 26 35 33 21 22 25 13 28 36 45 41 44 36 24 20 25 28.10 56.00 31.00
6 24 35 30 19 ~ ~ 26 17 36 36 21 12 15 29 28 30 34 22 18 27 20 30 34 38 23 22 27 19 32 36 ~ 26.43 38.00 28.00
7 26 25 28 18 20 11 21 25 29 20 29 30 28 24 35 30 35 27 42 24 25 25 39 22 37 ~ ~ ~ ~ ~ ~ 27.00 42.00 25.00
8 ~ 39 38 41 36 32 23 24 33 29 23 31 33 ~ 28 20 33 29 21 24 28 33 44 ~ 44 36 32 18 29 48 37 31.64 48.00 28.00
9 25 37 37 36 36 33 36 47 51 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 8.00 15 42 53 43 20 28 32 31 25 13 ~ 32.40 53.00 20.00
10 37 19 27 45 38 29 35 36 13 17 32 45 44 44 43 32 32 55 58 60 92 25 15 26 23 44 37 37 45 22 51 37.35 92.00 31.00
11 46 54 41 57 31 28 33 40 47 52 56 68 26 32 78 58 41 77 69 46 62 131 56 64 87 57 23 54 ~ ~ ~ 54.07 131.00 28.00
12 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 54 49 56 35 44 47.60 56.00 5.00

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. 33 40 12 3 0 1 0 0 89 56 16 4 1 1 0 0 218
REL. 37.0 44.9 13.4 3.3 0.0 1.1 0.0 0.0 100.0 62.9 18.0 4.5 1.1 1.1 0.0 0.018.1
ID 37 44 13 6 0 28 0 0 130
ABS. 64 24 1 0 0 0 0 0 89 25 1 0 0 0 0 0 69
REL. 71.9 26.9 1.1 0.0 0.0 0.0 0.0 0.0 100.0 28.1 1.1 0.0 0.0 0.0 0.0 0.0 1.4
ID 71 26 1 0 0 0 0 0 100
ABS. 49 24 0 0 0 0 0 0 73 24 0 0 0 0 0 0 53
REL. 67.1 32.8 0.0 0.0 0.0 0.0 0.0 0.0100.0 32.9 0.0 0.0 0.0 0.0 0.0 0.0 23.9
ID 67 32 0 0 0 0 0 0 100
ABS. 19 38 6 1 0 0 0 0 64 45 7 1 0 0 0 0 131
REL 29.6 59.3 9.3 1.5 0.0 0.0 0.0 0.0100.0 70.3 10.9 1.6 0.0 0.0 0.0 0.022.11
ID 29 59 9 3 0 0 0 0 101
Year
ABS. 165 126 19 4 0 1 0 0 315 150 24 5 1 1 0 0 218
REL. 52.3 40.0 6.0 1.2 0.0 0.3 0.0 0.0100.0 47.6 7.6 1.6 0.3 0.3 0.0 0.0 18.1
ID 52 40 6 2 0 7 0 0 108

Note:

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