Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1076 - Prerov
Code:CZPRCMPRE
Institution:CHMI
Region:Severomoravsky
District:Prerov
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 36 43 21 13 19 22 35 25 32 45 28 43 34 41 70 62 34 18 25 35 17 16 28 51 43 54 84 58 114 57 40 40.14 113.57 31.00
2 80 69 55 114 129 118 83 71 63 103 96 111 49 59 43 36 28 56 73 78 50 68 97 56 54 62 37 15 ~ ~ ~ 69.76 128.74 28.00
3 21 19 22 23 22 22 11 20 24 33 35 29 28 16 13 20 48 58 26 21 13 17 32 23 31 41 36 44 30 44 45 27.99 57.99 31.00
4 50 56 25 13 28 42 18 30 34 12 12 7.28 20 35 16 24 21 18 18 47 35 27 36 20 24 21 15 18 19 13 ~ 25.19 55.88 30.00
5 6.30 8.78 20 19 28 25 25 13 12 22 20 25 22 14 13 12 12 24 17 28 17 16 16 17 22 24 19 12 15 12 16 17.80 28.41 31.00
6 23 16 19 25 16 6.24 10 16 26 15 18 12 9 14 19 15 18 21 20 14 22 21 21 24 22 21 12 13 18 14 ~ 17.34 26.46 30.00
7 15 20 18 10 13 12 17 18 16 21 11 16 11 25 22 17 20 11 13 18 17 11 18 16 12 16 13 19 21 17 23 16.36 25.28 31.00
8 13 15 15 15 24 25 25 18 11 23 23 20 16 20 18 22 21 29 24 28 15 12 15 19 33 27 35 20 16 19 29 20.89 34.76 31.00
9 27 24 28 26 16 20 21 19 17 13 19 10 17 20 19 23 27 34 14 13 27 49 36 40 29 26 39 41 49 28 ~ 25.72 48.99 30.00
10 23 27 19 43 59 34 44 120 35 17 16 22 42 30 66 49 29 26 41 48 36 49 32 27 25 45 31 19 29 20 16 36.15 119.87 31.00
11 12 36 30 49 31 25 48 76 63 48 59 81 45 27 33 46 32 37 48 28 30 54 91 141 102 131 116 72 66 36 ~ 56.37 140.71 30.00
12 36 65 66 53 41 21 37 51 58 65 144 55 30 70 86 49 96 69 39 33 52 86 45 18 24 25 29 70 116 73 43 56.26 144.01 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. 37 36 11 6 0 0 0 0 90 53 17 6 0 0 0 0 129
REL. 41.1 40.0 12.2 6.6 0.0 0.0 0.0 0.0 100.0 58.9 18.9 6.7 0.0 0.0 0.0 0.05.2
ID 41 40 12 13 0 0 0 0 106
ABS. 83 8 0 0 0 0 0 0 91 8 0 0 0 0 0 0 56
REL. 91.2 8.7 0.0 0.0 0.0 0.0 0.0 0.0 100.0 8.8 0.0 0.0 0.0 0.0 0.0 0.0 2.4
ID 91 8 0 0 0 0 0 0 100
ABS. 84 8 0 0 0 0 0 0 92 8 0 0 0 0 0 0 49
REL. 91.3 8.6 0.0 0.0 0.0 0.0 0.0 0.0100.0 8.7 0.0 0.0 0.0 0.0 0.0 0.0 22.9
ID 91 8 0 0 0 0 0 0 100
ABS. 32 42 11 7 0 0 0 0 92 60 18 7 0 0 0 0 144
REL 34.7 45.6 11.9 7.6 0.0 0.0 0.0 0.0100.0 65.2 19.6 7.6 0.0 0.0 0.0 0.011.12
ID 34 45 11 15 0 0 0 0 107
Year
ABS. 236 94 22 13 0 0 0 0 365 129 35 13 0 0 0 0 144
REL. 64.6 25.7 6.0 3.5 0.0 0.0 0.0 0.0100.0 35.3 9.6 3.6 0.0 0.0 0.0 0.011.12
ID 64 25 6 7 0 0 0 0 103

Note:

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