Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1064 - Ostrava-Zabreh
Code:CZOSCMZAB
Institution:CHMI
Region:Severomoravsky
District:Ostrava-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 17 24 12 6.34 8.06 11 15 10 30 48 18 16 19 19 40 33 24 15 15 54 47 41 64 62 73 120 51 33 52 28 26 33.30 119.94 31.00
2 94 41 25 31 36 58 36 36 26 36 40 26 51 26 20 17 27 25 66 49 28 66 76 35 62 29 15 11 ~ ~ ~ 38.85 93.92 28.00
3 11 12 11 11 8.52 12 8.16 11 25 56 68 23 19 19 39 43 62 38 20 23 23 48 54 38 41 52 14 31 44 28 8.44 29.11 67.73 31.00
4 ~ ~ ~ ~ ~ 35 12 11 91 32 25 7.48 24 64 18 21 51 27 25 42 50 70 70 16 27 70 27 63 41 34 ~ 38.19 91.45 25.00
5 27 6.35 30 25 18 12 30 18 25 46 34 33 60 ~ 33 34 31 54 40 30 20 16 16 12 15 19 36 28 32 28 39 28.18 59.87 30.00
6 11 23 35 59 44 19 10 27 42 22 26 16 16 19 13 8.69 18 30 20 16 25 14 21 ~ 58 40 28 13 27 13 ~ 24.56 59.08 29.00
7 20 21 12 11 8.99 8.24 23 16 17 17 6.14 5.88 7.52 17 28 27 27 6.83 21 18 32 25 29 41 25 32 26 23 23 23 28 20.20 41.43 31.00
8 22 29 37 34 26 21 18 21 31 35 39 57 21 27 31 32 46 27 41 49 10 7.73 12 15 13 32 32 18 16 24 33 27.63 56.64 31.00
9 68 ~ ~ 46 42 34 49 28 11 8.55 27 17 18 9 10 11 15 32 29 34 57 88 67 75 77 46 45 48 36 48 ~ 38.39 87.66 28.00
10 42 51 47 52 93 57 62 145 21 10 8.06 15 32 15 42 66 12 25 57 23 15 19 17 22 11 18 16 8.47 13 10 8.77 33.29 145.35 31.00
11 7.43 51 12 26 20 15 40 23 57 30 34 48 39 54 26 39 27 28 30 46 43 57 110 152 142 128 91 114 52 51 ~ 53.08 152.35 30.00
12 56 76 130 36 26 13 18 31 41 108 88 34 20 40 45 27 37 39 24 25 69 76 75 11 14 19 19 17 229 110 53 51.78 228.50 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 33 4 1 0 0 0 0 90 38 5 1 0 0 0 0 120
REL. 57.7 36.6 4.4 1.1 0.0 0.0 0.0 0.0 100.0 42.2 5.6 1.1 0.0 0.0 0.0 0.026.1
ID 57 36 4 2 0 0 0 0 101
ABS. 58 22 4 0 0 0 0 0 84 26 4 0 0 0 0 0 91
REL. 69.0 26.1 4.7 0.0 0.0 0.0 0.0 0.0 100.0 31.0 4.8 0.0 0.0 0.0 0.0 0.0 9.4
ID 69 26 4 0 0 0 0 0 100
ABS. 65 20 5 0 0 0 0 0 90 25 5 0 0 0 0 0 88
REL. 72.2 22.2 5.5 0.0 0.0 0.0 0.0 0.0100.0 27.8 5.6 0.0 0.0 0.0 0.0 0.0 22.9
ID 72 22 5 0 0 0 0 0 100
ABS. 44 31 7 8 1 1 0 0 92 48 17 10 2 1 0 0 229
REL 47.8 33.6 7.6 8.6 1.0 1.0 0.0 0.0100.0 52.2 18.5 10.9 2.2 1.1 0.0 0.029.12
ID 47 33 7 17 5 27 0 0 139
Year
ABS. 219 106 20 9 1 1 0 0 356 137 31 11 2 1 0 0 229
REL. 61.5 29.7 5.6 2.5 0.2 0.2 0.0 0.0100.0 38.5 8.7 3.1 0.6 0.3 0.0 0.029.12
ID 61 29 5 5 1 7 0 0 110

Note:

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