Detailed overview of ambient air pollution valuis from individual stations


Year: 2000
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 48 50 49 45 67 94 62 34 29 39 61 126 55 30 30 34 37 24 28 36 19 23 22 82 119 69 53 43 22 22 35 47.99 125.87 31.00
2 51 42 37 41 47 62 73 26 28 40 58 37 18 39 29 35 49 40 26 20 25 41 55 39 28 31 33 23 27 ~ ~ 37.94 73.04 29.00
3 29 33 24 14 26 35 25 25 16 30 18 24 40 30 22 25 24 17 18 30 43 47 51 47 33 27 24 31 28 18 27 28.45 51.35 31.00
4 17 20 14 18 23 17 24 13 14 20 15 23 22 14 8.52 16 29 20 23 22 30 16 11 13 22 24 21 13 10 11 ~ 18.13 30.39 30.00
5 15 17 22 22 18 14 12 12 23 17 22 13 12 19 24 21 15 15 22 14 15 22 23 29 21 28 11 12 24 18 27 18.56 28.60 31.00
6 21 19 14 19 17 18 27 21 19 13 15 15 17 19 18 17 17 19 23 21 23 21 17 14 19 21 23 24 26 27 ~ 19.46 27.25 30.00
7 16 20 17 15 15 15 18 12 15 18 29 24 28 18 13 15 23 28 23 27 23 12 18 18 23 25 24 20 10 12 20 19.07 28.57 31.00
8 27 17 18 17 16 16 31 24 24 25 19 14 18 24 29 26 23 23 18 22 20 18 21 29 18 18 20 33 26 29 36 22.62 36.47 31.00
9 25 18 18 26 29 29 31 41 22 32 50 31 29 34 35 17 17 33 34 27 23 23 24 27 48 54 42 29 16 10 ~ 29.19 53.81 30.00
10 10 23 40 66 55 36 21 28 33 19 10 12 13 25 31 15 36 27 41 25 25 46 97 69 38 44 50 24 26 30 19 33.36 96.80 31.00
11 42 32 17 20 19 11 17 28 60 93 39 36 69 24 50 56 43 35 42 37 36 71 36 39 78 32 59 58 78 158 ~ 47.15 157.80 30.00
12 75 34 29 38 34 45 34 50 35 39 49 70 68 41 40 18 34 57 57 52 47 58 34 43 53 58 93 77 58 36 32 47.96 92.60 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. 47 38 4 2 0 0 0 0 91 44 6 2 0 0 0 0 126
REL. 51.6 41.7 4.3 2.1 0.0 0.0 0.0 0.0 100.0 48.4 6.6 2.2 0.0 0.0 0.0 0.012.1
ID 51 41 4 4 0 0 0 0 102
ABS. 91 0 0 0 0 0 0 0 91 0 0 0 0 0 0 0 30
REL.100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21.4
ID 100 0 0 0 0 0 0 0 100
ABS. 83 9 0 0 0 0 0 0 92 9 0 0 0 0 0 0 54
REL. 90.2 9.7 0.0 0.0 0.0 0.0 0.0 0.0100.0 9.8 0.0 0.0 0.0 0.0 0.0 0.0 26.9
ID 90 9 0 0 0 0 0 0 100
ABS. 31 48 12 0 1 0 0 0 92 61 13 1 1 0 0 0 158
REL 33.6 52.1 13.0 0.0 1.0 0.0 0.0 0.0100.0 66.3 14.1 1.1 1.1 0.0 0.0 0.030.11
ID 33 52 13 0 5 0 0 0 104
Year
ABS. 252 95 16 2 1 0 0 0 366 114 19 3 1 0 0 0 158
REL. 68.8 25.9 4.3 0.5 0.2 0.0 0.0 0.0100.0 31.1 5.2 0.8 0.3 0.0 0.0 0.030.11
ID 68 25 4 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