Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1125 - Ostrov n.Ohri
Code:CZKVHSONO
Institution:Public Health Service
Region:Zapadocesky
District:Karlovy Vary
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 17 18 26 20 25 74 66 39 24 29 10 32 46 43 27 32 83 68 81 73 111 111 131 88 23 46 60 37 18 23 21 48.45 131.00 31.00
2 33 85 56 60 24 19 17 7.00 48 109 107 112 49 25 28 48 24 24 37 32 38 28 14 15 17 30 65 49 ~ ~ ~ 42.86 112.00 28.00
3 32 19 8.00 24 45 31 50 64 48 30 36 36 75 33 14 24 17 14 16 4.00 8.00 4.00 24 15 6.00 16 12 4.00 17 4.00 26 24.39 75.00 31.00
4 12 9.00 16 9.00 7.00 7.00 10 7.00 4.00 5.00 13 4.00 4.00 4.00 6.00 7.00 4.00 11 5.00 28 18 10 13 9.00 8.00 5.00 7.00 4.00 6.00 5.00 ~ 8.57 28.00 30.00
5 10 6.00 8.00 10 5.00 6.00 4.00 6.00 13 6.00 6.00 6.00 13 13 4.00 7.00 4.00 5.00 5.00 17 6.00 8.00 5.00 4.00 12 15 22 22 27 34 39 11.23 39.00 31.00
6 22 18 16 21 9.00 8.00 7.00 11 7.00 11 4.00 6.00 9.00 6.00 4.00 5.00 7.00 8.00 11 6.00 10 17 15 23 19 29 22 11 15 8.00 ~ 12.17 29.00 30.00
7 22 18 36 13 27 23 19 36 37 11 9.00 4.00 12 4.00 8.00 9.00 11 44 6.00 24 30 20 15 15 20 42 15 14 20 43 32 20.61 44.00 31.00
8 42 86 75 88 69 43 35 30 50 49 16 12 10 14 16 12 16 13 16 15 11 16 27 50 78 35 49 26 15 15 31 34.19 88.00 31.00
9 23 17 12 12 18 26 22 31 73 81 87 65 101 142 97 110 45 42 25 25 14 39 43 35 48 30 27 48 34 30 ~ 46.73 142.00 30.00
10 20 21 31 32 37 46 39 46 22 26 20 17 45 43 38 31 45 43 22 38 27 39 21 49 23 23 30 31 13 76 66 34.19 76.00 31.00
11 49 79 51 75 49 47 48 27 48 35 36 18 21 29 23 35 33 47 53 28 44 54 45 84 92 73 63 48 31 70 ~ 47.83 92.00 30.00
12 57 26 24 16 9.00 73 23 26 18 34 32 26 15 29 28 25 38 14 21 21 29 44 45 37 17 18 23 25 41 26 33 28.81 73.00 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. 54 22 8 6 0 0 0 0 90 36 14 6 0 0 0 0 131
REL. 60.0 24.4 8.8 6.6 0.0 0.0 0.0 0.0 100.0 40.0 15.6 6.7 0.0 0.0 0.0 0.023.1
ID 60 24 8 13 0 0 0 0 106
ABS. 89 2 0 0 0 0 0 0 91 2 0 0 0 0 0 0 39
REL. 97.8 2.1 0.0 0.0 0.0 0.0 0.0 0.0 100.0 2.2 0.0 0.0 0.0 0.0 0.0 0.0 31.5
ID 97 2 0 0 0 0 0 0 100
ABS. 57 23 9 3 0 0 0 0 92 35 12 3 0 0 0 0 142
REL. 61.9 25.0 9.7 3.2 0.0 0.0 0.0 0.0100.0 38.0 13.0 3.3 0.0 0.0 0.0 0.0 14.9
ID 61 25 9 6 0 0 0 0 103
ABS. 48 36 8 0 0 0 0 0 92 44 8 0 0 0 0 0 92
REL 52.1 39.1 8.6 0.0 0.0 0.0 0.0 0.0100.0 47.8 8.7 0.0 0.0 0.0 0.0 0.025.11
ID 52 39 8 0 0 0 0 0 100
Year
ABS. 248 83 25 9 0 0 0 0 365 117 34 9 0 0 0 0 142
REL. 67.9 22.7 6.8 2.4 0.0 0.0 0.0 0.0100.0 32.1 9.3 2.5 0.0 0.0 0.0 0.0 14.9
ID 67 22 6 4 0 0 0 0 102

Note:

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