Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
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 46 48 50 44 74 71 45 27 28 90 ~ 54 37 41 47 ~ 51 29 41 45 30 28 57 84 61 69 66 46 27 30 41 48.64 89.56 29.00
2 62 53 57 38 48 32 45 41 46 50 95 52 28 61 45 59 117 96 48 46 53 64 78 51 42 43 38 26 36 ~ ~ 53.46 117.46 29.00
3 42 44 30 41 37 35 32 ~ 18 ~ 26 67 52 41 42 52 45 40 35 55 79 54 62 87 44 74 62 102 63 39 43 49.81 101.59 29.00
4 39 67 60 57 43 38 42 36 52 86 101 40 51 53 67 67 95 41 46 56 75 54 48 36 42 67 95 61 41 38 ~ 56.42 101.29 30.00
5 56 54 78 55 59 43 28 49 52 65 55 43 34 37 75 56 58 39 47 29 65 53 49 57 39 56 27 43 53 62 57 50.69 77.81 31.00
6 49 37 30 38 61 37 48 50 46 45 37 27 56 47 42 22 17 42 59 44 44 52 26 34 41 57 38 45 41 51 ~ 41.97 61.14 30.00
7 41 39 51 27 17 27 41 22 31 54 43 43 51 34 32 17 30 58 43 53 43 36 52 64 48 46 50 39 24 28 33 39.25 63.53 31.00
8 55 42 42 34 33 34 44 46 46 45 42 28 43 61 62 64 48 47 49 40 43 31 54 60 29 44 42 86 56 71 71 48.05 85.50 31.00
9 53 33 33 58 46 64 104 75 36 57 86 74 50 71 68 44 38 65 61 81 86 67 47 91 116 95 58 85 128 46 ~ 67.23 127.63 30.00
10 31 54 82 102 89 77 36 48 72 ~ 26 34 51 60 103 99 65 66 96 123 43 68 50 51 48 51 56 29 27 36 33 60.20 123.22 30.00
11 69 82 29 35 81 44 33 77 63 87 55 37 128 101 105 119 115 57 113 174 117 109 91 56 112 61 76 72 55 67 ~ 80.62 173.63 30.00
12 80 38 39 71 70 100 54 39 37 43 ~ 54 59 45 51 26 38 72 75 114 125 73 25 24 67 96 150 127 141 44 34 67.00 149.89 30.00

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. 14 59 12 2 0 0 0 0 87 73 14 2 0 0 0 0 117
REL. 16.0 67.8 13.7 2.2 0.0 0.0 0.0 0.0 100.0 83.9 16.1 2.3 0.0 0.0 0.0 0.017.2
ID 16 67 13 4 0 0 0 0 102
ABS. 8 73 9 1 0 0 0 0 91 83 10 1 0 0 0 0 101
REL. 8.7 80.2 9.8 1.0 0.0 0.0 0.0 0.0 100.0 91.2 11.0 1.1 0.0 0.0 0.0 0.0 11.4
ID 8 80 9 2 0 0 0 0 101
ABS. 17 58 14 3 0 0 0 0 92 75 17 3 0 0 0 0 128
REL. 18.4 63.0 15.2 3.2 0.0 0.0 0.0 0.0100.0 81.5 18.5 3.3 0.0 0.0 0.0 0.0 29.9
ID 18 63 15 6 0 0 0 0 103
ABS. 10 38 23 18 1 0 0 0 90 80 42 19 1 0 0 0 174
REL 11.1 42.2 25.5 20.0 1.1 0.0 0.0 0.0100.0 88.9 46.7 21.1 1.1 0.0 0.0 0.020.11
ID 11 42 25 40 5 0 0 0 124
Year
ABS. 49 228 58 24 1 0 0 0 360 311 83 25 1 0 0 0 174
REL. 13.6 63.3 16.1 6.6 0.2 0.0 0.0 0.0100.0 86.4 23.1 6.9 0.3 0.0 0.0 0.020.11
ID 13 63 16 13 1 0 0 0 107

Note:

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