Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1061 - Ostrava-Fifejdy
Code:CZOSCMFIF
Institution:CHMI
Region:Severomoravsky
District:Ostrava-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 19 28 15 11 14 20 22 13 28 44 18 15 20 20 38 32 24 18 21 37 28 23 47 59 59 86 52 36 63 35 26 31.26 86.24 31.00
2 99 48 29 39 44 64 37 37 28 41 42 29 38 24 27 25 28 30 55 48 23 56 65 32 38 35 19 13 ~ ~ ~ 39.07 98.99 28.00
3 13 12 15 19 23 20 13 13 25 47 64 40 21 11 29 32 66 41 21 22 15 31 35 29 39 58 24 55 60 58 21 31.41 66.46 31.00
4 32 51 20 17 34 34 16 14 80 33 33 12 43 80 28 19 39 23 8.76 41 28 34 62 22 30 65 23 33 40 28 ~ 34.11 79.99 30.00
5 25 7.62 19 9 13 15 43 30 28 45 47 35 31 19 16 15 12 41 18 20 22 12 13 13 21 26 46 20 34 25 45 24.78 47.12 31.00
6 16 44 33 57 34 21 10 9 32 20 20 12 6.52 21 18 19 23 42 21 18 41 23 23 25 52 33 34 31 34 26 ~ 26.65 57.02 30.00
7 17 22 20 14 13 15 18 17 15 30 21 ~ 13 28 29 25 29 14 36 25 25 16 25 25 19 22 36 28 23 26 35 22.73 36.48 30.00
8 16 17 16 29 25 20 26 24 14 50 36 29 19 36 42 27 55 36 35 43 15 15 20 22 22 32 35 22 17 21 45 27.83 55.09 31.00
9 88 58 69 63 24 30 85 44 18 18 24 18 17 17 14 18 22 26 17 19 33 57 38 72 85 68 58 30 26 24 ~ 39.29 88.49 30.00
10 20 27 31 31 50 26 25 118 36 12 11 22 49 20 52 83 16 22 40 34 22 29 19 23 17 28 24 10 17 12 14 30.37 118.12 31.00
11 16 ~ 18 30 27 26 53 28 113 30 32 69 36 41 25 28 21 23 35 28 28 34 73 100 110 138 75 95 27 30 ~ 48.00 138.21 29.00
12 34 59 147 44 29 16 42 35 40 82 129 33 24 64 50 35 38 39 27 26 51 83 82 13 14 17 16 15 136 72 37 49.21 146.66 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. 52 36 2 0 0 0 0 0 90 38 2 0 0 0 0 0 99
REL. 57.7 40.0 2.2 0.0 0.0 0.0 0.0 0.0 100.0 42.2 2.2 0.0 0.0 0.0 0.0 0.01.2
ID 57 40 2 0 0 0 0 0 100
ABS. 63 26 2 0 0 0 0 0 91 28 2 0 0 0 0 0 80
REL. 69.2 28.5 2.1 0.0 0.0 0.0 0.0 0.0 100.0 30.8 2.2 0.0 0.0 0.0 0.0 0.0 9.4
ID 69 28 2 0 0 0 0 0 100
ABS. 66 19 6 0 0 0 0 0 91 25 6 0 0 0 0 0 88
REL. 72.5 20.8 6.5 0.0 0.0 0.0 0.0 0.0100.0 27.5 6.6 0.0 0.0 0.0 0.0 0.0 1.9
ID 72 20 6 0 0 0 0 0 100
ABS. 50 24 10 7 0 0 0 0 91 41 17 7 0 0 0 0 147
REL 54.9 26.3 10.9 7.6 0.0 0.0 0.0 0.0100.0 45.1 18.7 7.7 0.0 0.0 0.0 0.0 3.12
ID 54 26 10 15 0 0 0 0 107
Year
ABS. 231 105 20 7 0 0 0 0 363 132 27 7 0 0 0 0 147
REL. 63.6 28.9 5.5 1.9 0.0 0.0 0.0 0.0100.0 36.4 7.4 1.9 0.0 0.0 0.0 0.0 3.12
ID 63 28 5 3 0 0 0 0 101

Note:

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