Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1061 - Ostrava-Fifejdy
Code:CZOSCMFIF
Institution:Czech Hydrometeorological Institute
Region:Moravskoslezsky
District:Ostrava-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 15 16 70 199 73 53 82 41 37 38 28 29 57 53 25 24 28 23 31 19 26 26 28 26 24 15 12 22 14 25 38 38.69 199.35 31.00
2 28 21 16 34 30 44 41 20 16 13 10 21 34 52 206 166 20 30 34 14 19 13 14 16 31 15 12 16 ~ ~ ~ 35.26 206.04 28.00
3 15 22 16 40 90 17 17 40 10 38 14 21 28 26 24 35 32 18 18 22 20 8.57 10 8.12 15 17 19 91 122 60 65 31.54 121.83 31.00
4 33 30 21 24 23 23 52 70 43 30 70 52 40 26 22 69 30 42 35 24 20 53 23 28 31 26 17 14 20 42 ~ 34.39 70.20 30.00
5 30 25 63 18 25 32 38 34 60 31 24 45 49 30 32 24 18 32 15 24 29 30 46 25 24 23 34 46 19 27 30 31.67 62.70 31.00
6 10 16 33 47 22 19 22 15 15 18 41 36 17 30 12 22 36 ~ 42 24 ~ 23 ~ 33 32 41 26 26 14 19 ~ 25.52 47.27 27.00
7 ~ ~ ~ 16 18 17 32 40 41 23 15 23 14 15 22 20 37 22 23 25 16 20 24 18 19 23 ~ ~ 19 33 32 23.31 40.54 26.00
8 25 23 28 18 34 25 24 39 45 19 19 15 19 10 13 29 29 40 23 65 79 55 70 40 60 94 83 52 70 51 34 39.65 93.67 31.00
9 16 36 63 83 66 33 63 52 55 ~ ~ 33 78 27 12 24 23 69 106 ~ 44 52 24 33 34 41 20 43 132 145 ~ 52.03 145.07 27.00
10 156 81 29 31 23 15 23 35 54 28 24 19 41 34 23 26 23 29 19 94 84 40 38 89 64 16 16 21 47 50 53 42.72 155.96 31.00
11 30 26 21 34 32 101 84 40 20 43 70 117 61 81 16 12 46 106 66 87 159 182 37 221 184 123 85 101 106 29 ~ 77.34 220.94 30.00
12 68 108 54 50 34 25 31 20 84 233 137 110 91 155 125 88 31 34 85 36 52 67 52 92 130 17 19 24 29 37 42 69.72 233.32 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. 62 19 5 1 2 1 0 0 90 28 9 4 3 1 0 0 206
REL. 68.8 21.1 5.5 1.1 2.2 1.1 0.0 0.0 100.0 31.1 10.0 4.4 3.3 1.1 0.0 0.015.2
ID 68 21 5 2 11 27 0 0 136
ABS. 62 23 3 0 0 0 0 0 88 26 3 0 0 0 0 0 70
REL. 70.4 26.1 3.4 0.0 0.0 0.0 0.0 0.0 100.0 29.5 3.4 0.0 0.0 0.0 0.0 0.0 8.4
ID 70 26 3 0 0 0 0 0 100
ABS. 47 26 8 3 0 0 0 0 84 37 11 3 0 0 0 0 145
REL. 55.9 30.9 9.5 3.5 0.0 0.0 0.0 0.0100.0 44.0 13.1 3.6 0.0 0.0 0.0 0.0 30.9
ID 55 30 9 7 0 0 0 0 103
ABS. 32 26 16 11 5 2 0 0 92 60 34 18 7 2 0 0 233
REL 34.7 28.2 17.3 11.9 5.4 2.1 0.0 0.0100.0 65.2 37.0 19.6 7.6 2.2 0.0 0.010.12
ID 34 28 17 23 27 54 0 0 185
Year
ABS. 203 94 32 15 7 3 0 0 354 151 57 25 10 3 0 0 233
REL. 57.3 26.5 9.0 4.2 1.9 0.8 0.0 0.0100.0 42.7 16.1 7.1 2.8 0.8 0.0 0.010.12
ID 57 26 9 8 9 21 0 0 132

Note:

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