Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1064 - Ostrava-Zabreh
Code:CZOSCMZAB
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 11 14 17 23 26 28 30 23 23 70 97 18 28 15 14 19 39 133 29 24 29 25 25 15 22 33 34 52 38 34 27 32.75 132.64 31.00
2 37 60 31 29 9.00 8.32 11 15 49 68 48 37 31 27 21 17 12 26 21 26 13 15 18 16 15 22 20 27 ~ ~ ~ 26.04 67.85 28.00
3 13 15 62 25 20 33 22 84 97 67 25 57 42 58 ~ 52 45 64 76 25 26 21 22 63 18 29 27 36 42 106 95 45.64 105.80 30.00
4 85 54 32 31 27 16 24 34 40 26 21 49 51 12 17 67 20 23 24 22 14 21 50 30 45 40 43 34 42 34 ~ 34.25 85.43 30.00
5 23 31 42 30 27 50 11 8.38 28 12 16 30 26 21 17 35 57 38 34 36 36 11 30 36 41 44 53 43 12 12 31 29.76 56.88 31.00
6 34 41 50 23 23 17 37 23 42 39 41 20 23 38 34 47 33 21 22 23 13 23 48 30 32 23 33 28 34 36 ~ 30.92 49.74 30.00
7 33 27 21 14 18 10 25 31 39 12 35 55 23 13 26 32 25 31 15 10 13 24 41 29 33 34 35 36 46 39 31 27.67 54.71 31.00
8 35 50 35 49 23 33 13 12 32 18 19 37 22 12 15 11 17 21 12 15 15 29 43 49 59 58 26 12 40 55 37 29.20 59.27 31.00
9 27 47 ~ ~ ~ 42 29 63 83 52 32 52 68 73 68 82 83 49 41 15 17 18 20 18 19 38 37 21 13 12 ~ 41.41 82.87 27.00
10 17 23 33 48 43 34 34 18 14 16 19 54 36 26 30 23 65 136 73 75 90 137 23 38 19 17 21 23 91 ~ ~ 43.92 136.58 29.00
11 ~ ~ 59 101 54 90 28 59 90 100 71 102 24 26 71 88 26 43 109 32 72 112 50 40 40 31 18 22 16 16 ~ 56.78 112.30 28.00
12 29 17 14 11 16 14 14 26 27 38 26 10 38 19 28 41 20 17 36 43 57 147 35 11 12 20 45 81 37 26 28 31.73 147.45 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. 59 20 8 2 0 0 0 0 89 30 10 2 0 0 0 0 133
REL. 66.2 22.4 8.9 2.2 0.0 0.0 0.0 0.0 100.0 33.7 11.2 2.2 0.0 0.0 0.0 0.018.1
ID 66 22 8 4 0 0 0 0 102
ABS. 51 38 2 0 0 0 0 0 91 40 2 0 0 0 0 0 85
REL. 56.0 41.7 2.1 0.0 0.0 0.0 0.0 0.0 100.0 44.0 2.2 0.0 0.0 0.0 0.0 0.0 1.4
ID 56 41 2 0 0 0 0 0 100
ABS. 52 31 6 0 0 0 0 0 89 37 6 0 0 0 0 0 83
REL. 58.4 34.8 6.7 0.0 0.0 0.0 0.0 0.0100.0 41.6 6.7 0.0 0.0 0.0 0.0 0.0 9.9
ID 58 34 6 0 0 0 0 0 100
ABS. 45 24 12 7 0 0 0 0 88 43 19 7 0 0 0 0 147
REL 51.1 27.2 13.6 7.9 0.0 0.0 0.0 0.0100.0 48.9 21.6 8.0 0.0 0.0 0.0 0.022.12
ID 51 27 13 15 0 0 0 0 107
Year
ABS. 207 113 28 9 0 0 0 0 357 150 37 9 0 0 0 0 147
REL. 57.9 31.6 7.8 2.5 0.0 0.0 0.0 0.0100.0 42.0 10.4 2.5 0.0 0.0 0.0 0.022.12
ID 57 31 7 5 0 0 0 0 102

Note:

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