Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1410 - Ostrava - Privoz
Code:CZOSCMOPR
Institution:Czech Hydrometeorological Institute
Region:Moravskoslezsky
District:Ostrava-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 56 45 61 138 51 43 47 29 49 104 68 42 48 121 131 123 110 104 171 76 61 74 67 46 70 64 68 63 65 40 22 72.82 171.48 31.00
2 29 48 55 74 63 46 90 166 45 20 37 50 35 79 77 104 38 18 39 32 23 19 31 54 74 88 104 54 ~ ~ ~ 56.96 165.74 28.00
3 56 74 39 55 35 74 58 63 89 34 32 41 46 39 29 43 31 58 40 27 42 62 47 41 32 25 31 29 46 45 27 44.85 88.70 31.00
4 72 73 66 53 42 40 21 14 22 32 42 29 10 34 15 36 36 38 36 31 14 12 40 50 42 42 45 25 54 33 ~ 36.50 72.68 30.00
5 42 23 49 39 16 12 14 19 40 23 13 16 27 28 35 56 31 21 22 27 18 25 34 45 18 23 18 38 25 22 27 27.22 55.65 31.00
6 27 14 13 19 32 42 29 28 14 20 23 21 29 30 36 24 25 19 12 14 23 30 ~ ~ ~ ~ 44 22 29 22 ~ 24.60 43.59 26.00
7 28 16 21 34 34 29 17 21 31 41 28 45 28 35 22 22 17 45 40 22 10 11 22 17 20 31 33 24 28 31 30 26.90 45.41 31.00
8 25 37 33 21 23 37 45 27 29 32 13 31 37 44 47 ~ ~ ~ ~ 24 11 17 19 37 35 36 26 26 38 49 43 31.26 49.34 27.00
9 23 30 51 25 18 27 27 23 14 23 30 36 58 61 28 27 33 79 98 79 55 26 23 32 32 34 44 36 41 32 ~ 38.21 98.22 30.00
10 34 39 54 44 70 66 94 137 73 64 51 90 48 57 88 92 60 49 54 53 35 44 35 47 46 43 26 32 54 54 43 57.27 136.95 31.00
11 18 60 49 32 45 57 39 28 23 66 63 66 41 40 63 51 86 49 57 32 64 44 16 13 19 66 83 72 102 45 ~ 49.65 102.41 30.00
12 27 42 51 54 70 112 72 72 145 122 123 73 59 97 63 21 86 65 50 42 38 54 32 29 25 35 59 30 33 30 18 59.08 145.06 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. 18 46 15 9 2 0 0 0 90 72 26 11 2 0 0 0 171
REL. 20.0 51.1 16.6 10.0 2.2 0.0 0.0 0.0 100.0 80.0 28.9 12.2 2.2 0.0 0.0 0.019.1
ID 20 51 16 20 11 0 0 0 118
ABS. 57 28 2 0 0 0 0 0 87 30 2 0 0 0 0 0 73
REL. 65.5 32.1 2.2 0.0 0.0 0.0 0.0 0.0 100.0 34.5 2.3 0.0 0.0 0.0 0.0 0.0 2.4
ID 65 32 2 0 0 0 0 0 100
ABS. 56 29 3 0 0 0 0 0 88 32 3 0 0 0 0 0 98
REL. 63.6 32.9 3.4 0.0 0.0 0.0 0.0 0.0100.0 36.4 3.4 0.0 0.0 0.0 0.0 0.0 19.9
ID 63 32 3 0 0 0 0 0 100
ABS. 18 53 15 6 0 0 0 0 92 74 21 6 0 0 0 0 145
REL 19.5 57.6 16.3 6.5 0.0 0.0 0.0 0.0100.0 80.4 22.8 6.5 0.0 0.0 0.0 0.0 9.12
ID 19 57 16 13 0 0 0 0 106
Year
ABS. 149 156 35 15 2 0 0 0 357 208 52 17 2 0 0 0 171
REL. 41.7 43.6 9.8 4.2 0.5 0.0 0.0 0.0100.0 58.3 14.6 4.8 0.6 0.0 0.0 0.0 19.1
ID 41 43 9 8 2 0 0 0 106

Note:

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