Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1061 - Ostrava-Fifejdy
Code:CZOSCMFIF
Institution:Czech Hydrometeorological Institute
Region:Severomoravsky
District:Ostrava-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 26 22 25 21 50 32 25 17 15 52 75 34 20 19 24 20 21 11 16 25 11 14 37 43 30 38 32 26 14 15 17 26.68 74.89 31.00
2 24 26 19 19 21 16 23 16 20 20 68 28 12 23 21 30 68 67 29 24 23 33 47 26 21 21 25 14 21 ~ ~ 27.72 68.11 29.00
3 22 21 17 22 16 19 15 17 ~ ~ 12 52 24 19 16 21 19 24 18 22 38 29 40 31 28 22 33 69 33 17 21 25.41 68.93 29.00
4 20 46 42 37 27 14 20 20 22 33 ~ ~ ~ 18 20 25 69 26 29 72 76 55 37 15 20 72 59 53 30 34 ~ 36.69 76.14 27.00
5 21 13 63 46 44 39 21 31 33 51 44 24 27 31 68 55 30 20 22 15 39 21 40 57 19 47 18 15 18 23 24 32.85 67.67 31.00
6 32 ~ ~ ~ 27 17 22 32 24 25 22 16 22 30 ~ 13 13 31 38 34 25 27 14 18 15 24 19 23 16 27 ~ 23.25 37.59 26.00
7 23 23 29 13 14 28 24 14 16 30 15 20 27 11 13 10 12 22 25 32 18 24 53 48 30 20 29 17 16 10 15 21.97 52.77 31.00
8 48 15 20 16 14 17 24 21 31 28 21 21 25 53 38 58 28 34 41 43 22 17 47 46 17 27 28 68 49 51 70 33.46 70.01 31.00
9 57 ~ 13 30 25 71 86 71 21 78 77 49 27 39 40 22 15 28 30 24 20 26 23 71 93 117 66 98 123 34 ~ 50.84 123.12 29.00
10 19 28 47 78 79 57 23 21 35 53 18 17 29 46 98 84 37 40 64 93 51 50 33 30 30 27 32 18 17 26 17 41.78 98.21 31.00
11 31 37 15 17 62 27 21 73 64 56 53 25 130 88 77 51 125 32 95 153 66 90 132 58 120 30 36 39 27 32 ~ 62.10 152.90 30.00
12 80 25 20 33 32 106 36 20 24 26 23 30 34 22 23 13 17 35 48 87 116 54 16 16 44 65 151 80 88 30 20 45.57 151.04 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. 73 11 5 0 0 0 0 0 89 16 5 0 0 0 0 0 75
REL. 82.0 12.3 5.6 0.0 0.0 0.0 0.0 0.0 100.0 18.0 5.6 0.0 0.0 0.0 0.0 0.011.1
ID 82 12 5 0 0 0 0 0 100
ABS. 57 22 5 0 0 0 0 0 84 27 5 0 0 0 0 0 76
REL. 67.8 26.1 5.9 0.0 0.0 0.0 0.0 0.0 100.0 32.1 6.0 0.0 0.0 0.0 0.0 0.0 21.4
ID 67 26 5 0 0 0 0 0 100
ABS. 60 19 10 2 0 0 0 0 91 31 12 2 0 0 0 0 123
REL. 65.9 20.8 10.9 2.1 0.0 0.0 0.0 0.0100.0 34.1 13.2 2.2 0.0 0.0 0.0 0.0 29.9
ID 65 20 10 4 0 0 0 0 102
ABS. 42 28 14 6 2 0 0 0 92 50 22 8 2 0 0 0 153
REL 45.6 30.4 15.2 6.5 2.1 0.0 0.0 0.0100.0 54.3 23.9 8.7 2.2 0.0 0.0 0.020.11
ID 45 30 15 13 10 0 0 0 115
Year
ABS. 232 80 34 8 2 0 0 0 356 124 44 10 2 0 0 0 153
REL. 65.1 22.4 9.5 2.2 0.5 0.0 0.0 0.0100.0 34.8 12.4 2.8 0.6 0.0 0.0 0.020.11
ID 65 22 9 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