Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1064 - Ostrava-Zabreh
Code:CZOSCMZAB
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 13 20 74 171 63 45 69 50 31 32 24 26 68 76 20 19 23 20 29 16 20 23 23 27 13 11 8.86 10 10 22 30 35.06 171.40 31.00
2 23 17 29 28 40 40 32 18 13 10 10 11 41 61 139 125 17 24 ~ ~ ~ ~ 6.39 11 21 11 10 12 ~ ~ ~ 31.30 139.09 24.00
3 14 38 19 81 66 18 13 33 11 33 14 24 26 43 44 53 55 17 17 21 21 25 25 22 34 40 46 93 91 42 41 36.12 93.24 31.00
4 49 49 36 40 38 22 53 94 74 55 75 62 47 27 16 50 56 56 40 30 29 38 28 37 36 17 11 10 12 27 ~ 40.50 93.66 30.00
5 30 46 45 15 19 27 52 24 38 25 22 33 37 16 29 14 17 32 23 37 43 27 34 21 33 27 59 41 38 31 36 31.28 59.25 31.00
6 14 18 33 58 34 46 28 16 33 38 35 21 13 31 7.93 20 27 34 31 16 21 19 18 37 27 34 21 32 9 15 ~ 26.19 57.84 30.00
7 11 14 17 13 14 20 27 46 49 24 30 37 22 29 44 28 37 27 33 31 17 19 15 16 20 27 25 30 38 28 35 26.51 49.05 31.00
8 20 24 22 23 36 39 39 37 40 21 35 11 15 31 26 42 35 54 42 54 38 37 48 24 37 51 46 33 35 37 39 34.53 54.44 31.00
9 27 51 68 92 40 23 38 57 80 62 47 65 60 15 23 28 19 46 75 25 34 71 47 60 47 32 29 49 84 138 ~ 51.00 137.79 30.00
10 110 72 24 28 12 17 26 17 66 55 49 41 52 22 19 20 20 26 16 82 109 31 30 53 28 5.84 4.74 6.61 46 52 49 38.40 110.33 31.00
11 23 27 44 68 56 137 101 32 13 40 58 155 73 51 7.70 4.49 60 145 65 82 284 134 35 186 224 119 100 86 137 25 ~ 85.73 283.71 30.00
12 70 138 83 75 64 41 35 31 80 173 148 100 103 147 131 93 29 43 85 33 45 104 68 95 143 16 18 22 25 48 46 75.22 173.46 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. 58 18 7 2 1 0 0 0 86 28 10 3 1 0 0 0 171
REL. 67.4 20.9 8.1 2.3 1.1 0.0 0.0 0.0 100.0 32.6 11.6 3.5 1.2 0.0 0.0 0.04.1
ID 67 20 8 4 5 0 0 0 106
ABS. 50 38 3 0 0 0 0 0 91 41 3 0 0 0 0 0 94
REL. 54.9 41.7 3.2 0.0 0.0 0.0 0.0 0.0 100.0 45.1 3.3 0.0 0.0 0.0 0.0 0.0 8.4
ID 54 41 3 0 0 0 0 0 100
ABS. 44 41 6 1 0 0 0 0 92 48 7 1 0 0 0 0 138
REL. 47.8 44.5 6.5 1.0 0.0 0.0 0.0 0.0100.0 52.2 7.6 1.1 0.0 0.0 0.0 0.0 30.9
ID 47 44 6 2 0 0 0 0 101
ABS. 32 24 15 16 3 2 0 0 92 60 36 21 5 2 0 0 284
REL 34.7 26.0 16.3 17.3 3.2 2.1 0.0 0.0100.0 65.2 39.1 22.8 5.4 2.2 0.0 0.021.11
ID 34 26 16 34 16 54 0 0 182
Year
ABS. 184 121 31 19 4 2 0 0 361 177 56 25 6 2 0 0 284
REL. 50.9 33.5 8.5 5.2 1.1 0.5 0.0 0.0100.0 49.0 15.5 6.9 1.7 0.6 0.0 0.021.11
ID 50 33 8 10 5 13 0 0 122

Note:

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