Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1076 - Prerov
Code:CZPRCMPRE
Institution:Czech Hydrometeorological Institute
Region:Olomoucky
District:Prerov
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 86 62 60 58 34 61 54 42 49 85 44 66 43 67 90 77 63 92 99 25 31 36 36 28 45 48 30 31 49 25 22 52.87 99.45 31.00
2 24 28 23 49 42 53 88 103 62 20 66 63 62 41 94 93 36 19 41 33 22 20 29 23 43 52 32 19 ~ ~ ~ 45.64 102.52 28.00
3 41 28 37 39 34 41 28 48 79 27 24 24 35 36 29 41 29 30 26 23 46 56 49 22 30 20 18 23 20 37 33 33.99 79.37 31.00
4 39 35 30 24 32 26 17 18 43 32 47 30 21 18 10 31 26 22 24 26 12 16 29 31 23 26 25 16 11 11 ~ 24.92 46.95 30.00
5 19 20 25 19 13 11 12 14 28 29 17 11 15 19 17 22 19 20 19 19 17 20 24 27 16 13 16 25 22 21 21 19.05 29.02 31.00
6 23 10 12 24 20 23 26 19 14 21 27 19 20 23 20 14 15 17 16 17 20 17 7.76 20 22 19 20 17 19 13 ~ 18.53 27.34 30.00
7 14 16 20 18 13 7.81 6.18 14 20 17 17 19 14 10 8.67 13 20 15 13 16 10 10 26 20 20 27 18 13 12 19 19 15.66 26.87 31.00
8 17 17 13 10 15 19 22 16 20 21 10 17 24 24 22 20 16 16 18 17 16 20 23 22 19 24 19 21 23 23 15 18.66 24.16 31.00
9 14 20 21 22 30 31 24 10 9 20 25 32 24 36 19 21 19 25 19 34 27 15 21 45 29 24 27 21 20 23 ~ 23.53 44.90 30.00
10 24 42 43 50 36 37 31 58 50 57 38 54 41 46 70 65 42 25 38 12 22 45 26 35 39 36 22 25 41 76 40 40.79 75.91 31.00
11 24 43 30 22 42 42 24 17 32 24 39 55 29 26 77 65 72 26 48 49 57 28 23 18 23 69 47 59 72 37 ~ 40.61 76.57 30.00
12 24 35 47 43 53 62 65 50 67 88 154 68 52 76 62 21 109 69 42 46 33 46 26 23 17 29 53 24 21 21 25 49.97 153.56 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. 36 42 11 1 0 0 0 0 90 54 12 1 0 0 0 0 103
REL. 40.0 46.6 12.2 1.1 0.0 0.0 0.0 0.0 100.0 60.0 13.3 1.1 0.0 0.0 0.0 0.08.2
ID 40 46 12 2 0 0 0 0 101
ABS. 87 4 0 0 0 0 0 0 91 4 0 0 0 0 0 0 47
REL. 95.6 4.3 0.0 0.0 0.0 0.0 0.0 0.0 100.0 4.4 0.0 0.0 0.0 0.0 0.0 0.0 11.4
ID 95 4 0 0 0 0 0 0 100
ABS. 89 3 0 0 0 0 0 0 92 3 0 0 0 0 0 0 45
REL. 96.7 3.2 0.0 0.0 0.0 0.0 0.0 0.0100.0 3.3 0.0 0.0 0.0 0.0 0.0 0.0 24.9
ID 96 3 0 0 0 0 0 0 100
ABS. 33 46 11 1 1 0 0 0 92 59 13 2 1 0 0 0 154
REL 35.8 50.0 11.9 1.0 1.0 0.0 0.0 0.0100.0 64.1 14.1 2.2 1.1 0.0 0.0 0.011.12
ID 35 50 11 2 5 0 0 0 105
Year
ABS. 245 95 22 2 1 0 0 0 365 120 25 3 1 0 0 0 154
REL. 67.1 26.0 6.0 0.5 0.2 0.0 0.0 0.0100.0 32.9 6.8 0.8 0.3 0.0 0.0 0.011.12
ID 67 26 6 1 1 0 0 0 101

Note:

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