Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1062 - Ostrava-Por./V.obvod
Code:CZOSCMPO5
Institution:CHMI
Region:Severomoravsky
District:Ostrava-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 22 34 20 16 21 24 30 21 42 58 25 26 33 31 59 45 35 23 27 55 34 49 62 74 69 100 66 52 66 42 30 41.58 99.86 31.00
2 89 53 40 53 55 84 48 57 42 57 54 43 64 42 44 28 39 45 59 66 27 62 73 48 58 54 28 18 ~ ~ ~ 51.07 88.74 28.00
3 22 21 21 21 21 25 13 17 22 46 61 37 33 15 36 42 75 60 29 29 21 30 48 36 48 54 38 55 63 53 28 36.11 74.95 31.00
4 46 54 34 22 34 39 20 22 69 24 44 11 34 53 21 31 41 26 18 39 39 47 61 29 29 54 17 45 39 38 ~ 35.95 68.76 30.00
5 45 13 31 20 26 29 44 27 33 48 ~ 38 47 27 29 27 38 50 32 29 32 18 19 26 33 34 51 47 39 32 37 33.33 51.47 30.00
6 27 43 38 60 53 28 21 20 40 31 25 17 10 22 28 23 29 30 25 22 30 30 ~ ~ 59 36 29 23 43 31 ~ 31.12 60.40 28.00
7 24 22 28 18 19 20 29 22 26 26 13 16 20 26 30 29 33 16 32 32 30 24 36 32 20 33 33 29 31 29 37 26.33 36.63 31.00
8 23 30 30 30 28 28 31 30 16 60 45 62 23 33 40 36 45 34 39 45 18 13 20 21 24 37 32 26 26 ~ 50 32.52 61.78 30.00
9 61 74 52 54 47 52 63 39 26 25 37 22 23 25 21 25 35 32 19 21 36 62 45 76 76 57 52 36 33 42 ~ 42.25 75.91 30.00
10 77 43 36 44 68 63 65 123 41 18 19 32 49 28 57 64 18 31 56 39 31 34 27 29 23 35 34 14 27 20 17 40.61 123.11 31.00
11 16 48 22 44 32 29 49 47 85 48 45 66 65 53 40 41 34 40 53 39 52 61 98 152 130 139 102 101 52 68 ~ 61.68 152.50 30.00
12 60 81 152 56 38 25 40 61 60 102 108 43 33 77 63 43 57 46 33 30 86 95 94 16 21 20 19 24 118 121 47 60.25 151.69 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. 34 49 7 0 0 0 0 0 90 56 7 0 0 0 0 0 100
REL. 37.7 54.4 7.7 0.0 0.0 0.0 0.0 0.0 100.0 62.2 7.8 0.0 0.0 0.0 0.0 0.026.1
ID 37 54 7 0 0 0 0 0 100
ABS. 50 37 1 0 0 0 0 0 88 38 1 0 0 0 0 0 69
REL. 56.8 42.0 1.1 0.0 0.0 0.0 0.0 0.0 100.0 43.2 1.1 0.0 0.0 0.0 0.0 0.0 9.4
ID 56 42 1 0 0 0 0 0 100
ABS. 58 30 3 0 0 0 0 0 91 33 3 0 0 0 0 0 76
REL. 63.7 32.9 3.2 0.0 0.0 0.0 0.0 0.0100.0 36.3 3.3 0.0 0.0 0.0 0.0 0.0 24.9
ID 63 32 3 0 0 0 0 0 100
ABS. 27 44 10 9 2 0 0 0 92 65 21 11 2 0 0 0 152
REL 29.3 47.8 10.8 9.7 2.1 0.0 0.0 0.0100.0 70.7 22.8 12.0 2.2 0.0 0.0 0.024.11
ID 29 47 10 19 10 0 0 0 118
Year
ABS. 169 160 21 9 2 0 0 0 361 192 32 11 2 0 0 0 152
REL. 46.8 44.3 5.8 2.4 0.5 0.0 0.0 0.0100.0 53.2 8.9 3.0 0.6 0.0 0.0 0.024.11
ID 46 44 5 4 2 0 0 0 104

Note:

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