Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 954 - Drahotuse
Code:CZPRCMDRA
Institution:Czech Hydrometeorological Institute
Region:Olomoucky
District:Prerov
IHd: 100
Measure method:guajacol (modif. Jakobs-Hochheiser) - spectrophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 96 44 52 86 45 51 112 41 55 73 72 68 46 90 84 84 113 183 160 61 80 42 59 38 89 66 54 88 58 46 35 73.26 183.00 31.00
2 61 44 36 68 62 103 132 122 71 35 48 64 56 131 123 119 38 43 64 35 33 37 33 27 61 75 62 16 ~ ~ ~ 64.25 132.00 28.00
3 30 78 60 77 40 178 28 ~ 101 33 80 37 71 71 46 43 44 50 30 53 89 56 48 33 30 57 55 69 64 69 40 58.67 178.00 30.00
4 23 71 58 27 43 45 18 27 51 54 68 53 32 33 10 ~ 74 50 52 ~ ~ ~ ~ ~ 46 33 36 33 44 ~ ~ 42.65 74.00 23.00
5 38 42 54 32 23 18 26 24 52 49 29 29 44 75 37 51 52 31 ~ 44 39 48 59 59 42 31 31 26 44 55 30 40.47 75.00 30.00
6 28 11 20 24 29 32 34 26 25 32 26 21 26 34 28 13 15 20 19 29 24 17 13 16 29 23 20 37 32 17 ~ 24.00 37.00 30.00
7 17 23 29 25 18 24 5.00 16 24 33 23 27 21 21 19 19 13 17 19 26 7.00 18 25 28 33 23 30 23 28 38 32 22.71 38.00 31.00
8 37 39 16 11 17 25 29 18 26 21 16 ~ 37 34 39 33 17 24 28 26 30 25 34 39 16 29 31 28 37 32 17 27.03 39.00 30.00
9 11 20 30 19 23 36 26 15 6.00 11 28 20 29 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 40 26 41 31 26 28 27 ~ 24.65 41.00 20.00
10 23 34 36 33 35 27 32 47 37 46 41 34 30 37 49 51 42 33 36 19 27 26 33 36 23 27 13 23 32 44 40 33.74 51.00 31.00
11 40 58 29 21 53 32 16 12 51 44 51 37 37 86 49 210 112 43 82 93 36 19 30 24 44 47 72 87 69 52 ~ 54.53 210.00 30.00
12 39 43 53 ~ 109 98 67 52 84 97 155 49 78 85 62 48 61 79 47 97 30 38 38 14 14 32 61 ~ ~ ~ ~ 62.69 155.00 26.00

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. 10 45 22 9 3 0 0 0 89 79 34 12 3 0 0 0 183
REL. 11.2 50.5 24.7 10.1 3.3 0.0 0.0 0.0 100.0 88.8 38.2 13.5 3.4 0.0 0.0 0.018.1
ID 11 50 24 20 16 0 0 0 123
ABS. 48 31 4 0 0 0 0 0 83 35 4 0 0 0 0 0 75
REL. 57.8 37.3 4.8 0.0 0.0 0.0 0.0 0.0 100.0 42.2 4.8 0.0 0.0 0.0 0.0 0.0 14.5
ID 57 37 4 0 0 0 0 0 100
ABS. 69 12 0 0 0 0 0 0 81 12 0 0 0 0 0 0 41
REL. 85.1 14.8 0.0 0.0 0.0 0.0 0.0 0.0100.0 14.8 0.0 0.0 0.0 0.0 0.0 0.0 26.9
ID 85 14 0 0 0 0 0 0 100
ABS. 27 42 14 2 1 1 0 0 87 60 18 4 2 1 0 0 210
REL 31.0 48.2 16.0 2.2 1.1 1.1 0.0 0.0100.0 69.0 20.7 4.6 2.3 1.1 0.0 0.016.11
ID 31 48 16 4 5 28 0 0 134
Year
ABS. 154 130 40 11 4 1 0 0 340 186 56 16 5 1 0 0 210
REL. 45.2 38.2 11.7 3.2 1.1 0.2 0.0 0.0100.0 54.7 16.5 4.7 1.5 0.3 0.0 0.016.11
ID 45 38 11 6 5 7 0 0 115

Note:

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