Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1410 - Ostrava - Privoz
Code:CZOSCMOPR
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 49 40 50 43 73 74 55 34 35 59 75 88 47 47 40 35 33 13 19 48 13 41 37 49 48 73 65 48 25 26 62 46.58 87.63 31.00
2 53 46 27 38 37 30 47 30 28 37 93 47 22 56 53 59 82 95 51 23 22 58 56 42 39 29 46 24 34 ~ ~ 45.02 95.27 29.00
3 32 35 28 36 21 38 35 33 17 38 24 61 50 28 25 37 21 34 19 39 53 56 46 48 53 51 58 86 43 30 40 39.14 86.26 31.00
4 24 41 50 46 29 15 27 39 29 58 80 44 37 29 21 30 56 20 30 49 58 38 32 16 18 49 57 41 24 33 ~ 37.31 80.12 30.00
5 26 22 47 37 31 28 17 23 38 32 29 26 21 24 48 43 36 15 27 25 35 34 34 ~ 19 ~ ~ ~ ~ ~ ~ 29.88 47.99 24.00
6 ~ 22 28 29 30 18 23 20 21 22 23 12 24 25 24 9 16 24 33 37 32 25 12 17 20 27 18 19 20 25 ~ 22.62 36.57 29.00
7 19 17 26 18 14 16 22 9 20 30 27 32 28 19 9 6.36 17 30 26 52 23 19 29 56 36 27 42 24 7.36 8.24 19 23.54 56.21 31.00
8 37 21 18 18 14 15 18 19 26 34 21 15 21 35 44 40 40 27 31 30 21 17 28 37 17 22 19 47 36 40 61 27.99 60.88 31.00
9 49 22 25 32 26 52 76 60 33 40 61 54 38 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 43.68 75.67 13.00
10 ~ ~ ~ ~ ~ ~ ~ ~ 55 67 22 37 66 47 77 113 65 36 63 100 74 79 64 53 47 54 45 27 30 38 28 55.92 113.03 23.00
11 59 57 31 21 59 35 40 75 85 93 69 81 163 106 87 50 106 43 89 141 124 147 104 62 90 39 68 68 59 76 ~ 77.57 163.46 30.00
12 95 43 35 58 50 129 70 49 42 34 50 55 62 47 44 38 39 67 46 80 121 70 26 34 43 54 166 89 87 36 49 61.52 166.45 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. 26 56 9 0 0 0 0 0 91 65 9 0 0 0 0 0 95
REL. 28.5 61.5 9.8 0.0 0.0 0.0 0.0 0.0 100.0 71.4 9.9 0.0 0.0 0.0 0.0 0.018.2
ID 28 61 9 0 0 0 0 0 100
ABS. 58 24 1 0 0 0 0 0 83 25 1 0 0 0 0 0 80
REL. 69.8 28.9 1.2 0.0 0.0 0.0 0.0 0.0 100.0 30.1 1.2 0.0 0.0 0.0 0.0 0.0 11.4
ID 69 28 1 0 0 0 0 0 100
ABS. 52 22 1 0 0 0 0 0 75 23 1 0 0 0 0 0 76
REL. 69.3 29.3 1.3 0.0 0.0 0.0 0.0 0.0100.0 30.7 1.3 0.0 0.0 0.0 0.0 0.0 7.9
ID 69 29 1 0 0 0 0 0 100
ABS. 7 43 23 9 2 0 0 0 84 77 34 11 2 0 0 0 166
REL 8.3 51.1 27.3 10.7 2.3 0.0 0.0 0.0100.0 91.7 40.5 13.1 2.4 0.0 0.0 0.027.12
ID 8 51 27 21 11 0 0 0 120
Year
ABS. 143 145 34 9 2 0 0 0 333 190 45 11 2 0 0 0 166
REL. 42.9 43.5 10.2 2.7 0.6 0.0 0.0 0.0100.0 57.1 13.5 3.3 0.6 0.0 0.0 0.027.12
ID 42 43 10 5 3 0 0 0 105

Note:

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