Detailed overview of ambient air pollution valuis from individual stations


Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1076 - Prerov
Code:CZPRCMPRE
Institution:Czech Hydrometeorological Institute
Region:Severomoravsky
District:Prerov
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 17 27 37 50 79 57 63 63 47 34 24 35 43 38 34 54 84 164 61 41 43 37 34 26 38 47 56 37 16 12 23 45.86 164.07 31.00
2 62 69 70 52 17 12 16 35 26 27 19 15 13 17 44 32 23 51 45 40 25 35 24 32 35 47 52 58 ~ ~ ~ 35.40 69.53 28.00
3 27 42 32 18 21 19 22 37 40 47 30 28 34 27 40 23 27 45 51 28 38 54 30 45 27 16 18 24 23 48 51 32.61 53.83 31.00
4 46 31 27 26 29 34 33 28 34 26 27 34 39 16 34 40 18 19 29 33 18 34 34 15 18 31 24 20 16 21 ~ 27.72 46.09 30.00
5 15 10 19 12 17 24 15 15 20 21 25 21 26 30 14 14 25 25 17 18 20 14 16 25 30 20 26 18 12 12 17 19.15 30.43 31.00
6 19 17 21 22 12 9 18 15 25 25 17 15 11 17 12 18 23 24 13 15 14 22 25 25 19 10 14 16 23 24 ~ 17.97 25.45 30.00
7 21 19 12 10 8.61 10 21 18 15 11 19 22 21 18 26 19 14 17 21 16 17 16 21 12 16 16 13 13 22 18 17 16.81 26.37 31.00
8 17 23 22 33 23 19 14 22 23 25 20 23 20 14 18 19 26 22 23 24 18 19 25 37 34 29 32 13 16 31 28 22.96 36.63 31.00
9 22 28 21 21 27 29 40 36 40 27 23 24 37 37 39 48 34 21 12 12 22 33 43 37 21 26 40 32 24 17 ~ 29.15 48.28 30.00
10 23 20 19 32 24 40 41 37 19 27 47 55 66 47 50 24 19 46 36 39 61 22 18 19 30 35 37 53 40 39 48 35.85 65.77 31.00
11 78 88 26 58 42 28 24 42 63 63 45 64 29 21 28 32 47 54 52 32 36 48 40 46 61 59 30 41 29 35 ~ 44.68 87.60 30.00
12 49 33 26 20 25 33 28 51 60 125 41 23 50 32 43 52 45 32 57 91 62 127 128 27 21 22 36 26 47 39 43 48.21 128.10 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. 39 46 4 0 1 0 0 0 90 51 5 1 1 0 0 0 164
REL. 43.3 51.1 4.4 0.0 1.1 0.0 0.0 0.0 100.0 56.7 5.6 1.1 1.1 0.0 0.0 0.018.1
ID 43 51 4 0 5 0 0 0 104
ABS. 81 10 0 0 0 0 0 0 91 10 0 0 0 0 0 0 46
REL. 89.0 10.9 0.0 0.0 0.0 0.0 0.0 0.0 100.0 11.0 0.0 0.0 0.0 0.0 0.0 0.0 1.4
ID 89 10 0 0 0 0 0 0 100
ABS. 78 14 0 0 0 0 0 0 92 14 0 0 0 0 0 0 48
REL. 84.7 15.2 0.0 0.0 0.0 0.0 0.0 0.0100.0 15.2 0.0 0.0 0.0 0.0 0.0 0.0 16.9
ID 84 15 0 0 0 0 0 0 100
ABS. 36 50 3 3 0 0 0 0 92 56 6 3 0 0 0 0 128
REL 39.1 54.3 3.2 3.2 0.0 0.0 0.0 0.0100.0 60.9 6.5 3.3 0.0 0.0 0.0 0.023.12
ID 39 54 3 6 0 0 0 0 103
Year
ABS. 234 120 7 3 1 0 0 0 365 131 11 4 1 0 0 0 164
REL. 64.1 32.8 1.9 0.8 0.2 0.0 0.0 0.0100.0 35.9 3.0 1.1 0.3 0.0 0.0 0.0 18.1
ID 64 32 1 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