Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
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 76 67 59 47 35 25 43 60 16 29 71 90 130 128 124 114 85 53 21 31 30 28 27 26 40 61 84 116 118 49 36 61.90 130.00 31.00
2 89 56 47 57 27 109 122 60 48 59 63 50 29 36 39 36 29 25 58 30 71 63 81 70 56 65 40 32 ~ ~ ~ 55.25 122.00 28.00
3 26 26 31 24 10 30 39 35 17 21 38 32 24 30 29 24 23 35 38 28 33 14 17 35 62 49 38 40 30 52 44 31.42 62.00 31.00
4 80 49 69 45 35 72 45 51 42 32 24 25 21 33 44 38 61 43 35 35 36 36 58 36 9.00 30 33 35 79 58 ~ 42.97 80.00 30.00
5 22 28 26 21 18 26 26 35 53 50 75 106 155 73 77 10 25 34 44 38 39 28 5.00 11 18 16 24 29 43 38 27 39.35 155.00 31.00
6 17 20 21 28 58 107 88 24 16 18 17 11 11 12 18 14 9.00 14 6.00 4.00 17 24 8.00 8.00 18 19 4.00 10 9.00 12 ~ 21.40 107.00 30.00
7 4.00 4.00 7.00 4.00 4.00 5.00 5.00 7.00 9.00 5.00 4.00 10 22 8.00 8.00 4.00 25 4.00 4.00 19 111 213 94 25 7.00 6.00 9.00 6.00 4.00 9.00 18 21.42 213.00 31.00
8 16 16 9.00 4.00 5.00 4.00 5.00 5.00 46 99 80 105 51 24 9.00 18 19 8.00 7.00 5.00 6.00 9.00 6.00 8.00 11 18 20 23 7.00 13 11 21.52 105.00 31.00
9 8.00 11 16 14 4.00 4.00 8.00 4.00 12 11 4.00 10 11 5.00 26 26 47 31 33 28 4.00 35 66 24 44 30 9.00 25 40 55 ~ 21.50 66.00 30.00
10 39 38 67 37 12 50 60 44 44 31 26 4.00 17 47 39 12 24 40 69 40 73 26 53 50 35 20 37 40 34 26 14 37.03 73.00 31.00
11 18 23 52 45 10 33 24 100 59 69 53 59 91 59 42 37 25 29 42 34 42 32 66 109 77 44 104 114 114 59 ~ 55.50 114.00 30.00
12 65 79 66 44 52 28 16 26 76 124 135 72 103 43 54 54 54 78 80 38 30 41 59 61 55 24 18 44 51 43 27 56.13 135.00 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. 34 38 10 8 0 0 0 0 90 56 18 8 0 0 0 0 130
REL. 37.7 42.2 11.1 8.8 0.0 0.0 0.0 0.0 100.0 62.2 20.0 8.9 0.0 0.0 0.0 0.013.1
ID 37 42 11 17 0 0 0 0 108
ABS. 52 28 8 2 1 0 0 0 91 39 11 3 1 0 0 0 155
REL. 57.1 30.7 8.7 2.1 1.0 0.0 0.0 0.0 100.0 42.9 12.1 3.3 1.1 0.0 0.0 0.0 13.5
ID 57 30 8 4 5 0 0 0 106
ABS. 78 8 3 2 0 1 0 0 92 14 6 3 1 1 0 0 213
REL. 84.7 8.6 3.2 2.1 0.0 1.0 0.0 0.0100.0 15.2 6.5 3.3 1.1 1.1 0.0 0.0 22.7
ID 84 8 3 4 0 27 0 0 128
ABS. 26 47 12 7 0 0 0 0 92 66 19 7 0 0 0 0 135
REL 28.2 51.0 13.0 7.6 0.0 0.0 0.0 0.0100.0 71.7 20.7 7.6 0.0 0.0 0.0 0.011.12
ID 28 51 13 15 0 0 0 0 107
Year
ABS. 190 121 33 19 1 1 0 0 365 175 54 21 2 1 0 0 213
REL. 52.0 33.1 9.0 5.2 0.2 0.2 0.0 0.0100.0 47.9 14.8 5.8 0.5 0.3 0.0 0.0 22.7
ID 52 33 9 10 1 6 0 0 112

Note:

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