Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1062 - Ostrava-Por./V.obvod
Code:CZOSCMPO5
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 16 17 26 38 35 32 42 38 34 51 83 29 35 26 22 22 36 106 39 32 31 32 28 16 ~ ~ ~ ~ ~ 31 29 35.65 106.01 26.00
2 60 82 50 42 18 17 17 34 48 47 34 27 24 30 38 28 26 33 26 31 17 30 40 36 34 34 29 49 ~ ~ ~ 35.05 81.90 28.00
3 24 36 39 22 23 36 29 66 72 59 29 41 52 64 59 53 72 75 82 29 42 39 42 45 30 32 39 36 32 70 54 45.95 82.43 31.00
4 53 39 30 38 31 29 39 29 40 33 35 43 56 22 21 48 25 30 31 31 25 37 40 28 34 35 46 44 32 45 ~ 35.60 55.95 30.00
5 31 30 57 52 58 54 25 18 34 27 27 34 31 36 17 27 43 54 47 41 45 15 31 49 49 29 73 54 20 21 40 37.72 73.07 31.00
6 36 47 51 33 33 22 27 29 31 40 45 15 19 28 23 34 26 26 30 38 19 14 52 33 32 35 40 38 46 35 ~ 32.53 51.56 30.00
7 31 34 26 23 24 22 28 19 35 45 40 63 30 28 33 33 29 41 33 30 29 32 34 22 28 33 26 28 44 33 28 31.76 62.69 31.00
8 24 42 44 63 41 38 27 25 36 29 24 29 ~ 25 23 29 28 31 29 26 22 28 47 50 62 60 46 23 27 55 39 35.75 62.97 30.00
9 26 27 48 47 48 46 39 47 43 42 36 41 56 53 64 89 ~ ~ 36 ~ ~ ~ ~ ~ ~ 48 46 47 30 29 ~ 44.87 89.26 22.00
10 28 35 36 51 36 50 52 35 22 34 36 63 62 42 26 20 41 84 64 75 101 143 40 70 72 47 61 45 104 37 41 53.35 143.18 31.00
11 44 42 63 93 77 74 42 77 97 93 78 140 37 37 81 182 62 82 94 44 80 114 49 52 79 61 30 39 31 36 ~ 70.30 181.57 30.00
12 47 54 34 30 48 47 42 53 40 67 51 22 78 46 79 65 41 35 69 105 73 188 48 17 20 41 81 79 74 71 57 58.13 188.38 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. 38 39 7 1 0 0 0 0 85 47 8 1 0 0 0 0 106
REL. 44.7 45.8 8.2 1.1 0.0 0.0 0.0 0.0 100.0 55.3 9.4 1.2 0.0 0.0 0.0 0.018.1
ID 44 45 8 2 0 0 0 0 101
ABS. 45 45 1 0 0 0 0 0 91 46 1 0 0 0 0 0 73
REL. 49.4 49.4 1.0 0.0 0.0 0.0 0.0 0.0 100.0 50.5 1.1 0.0 0.0 0.0 0.0 0.0 27.5
ID 49 49 1 0 0 0 0 0 100
ABS. 42 40 1 0 0 0 0 0 83 41 1 0 0 0 0 0 89
REL. 50.6 48.1 1.2 0.0 0.0 0.0 0.0 0.0100.0 49.4 1.2 0.0 0.0 0.0 0.0 0.0 16.9
ID 50 48 1 0 0 0 0 0 100
ABS. 10 49 25 6 2 0 0 0 92 82 33 8 2 0 0 0 188
REL 10.8 53.2 27.1 6.5 2.1 0.0 0.0 0.0100.0 89.1 35.9 8.7 2.2 0.0 0.0 0.022.12
ID 10 53 27 13 10 0 0 0 115
Year
ABS. 135 173 34 7 2 0 0 0 351 216 43 9 2 0 0 0 188
REL. 38.4 49.2 9.6 1.9 0.5 0.0 0.0 0.0100.0 61.5 12.3 2.6 0.6 0.0 0.0 0.022.12
ID 38 49 9 3 2 0 0 0 104

Note:

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