Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 617 - Litomerice-OHS
Code:CZLTHSLOH
Institution:Public Health Service
Region:Severocesky
District:Litomerice
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 45 49 29 24 34 22 88 35 46 62 34 65 51 53 66 57 36 41 45 45 37 36 38 32 33 87 90 105 83 60 39 50.55 105.00 31.00
2 46 70 55 85 70 194 74 37 122 174 106 49 41 28 45 51 50 123 79 83 77 63 52 89 50 80 25 24 ~ ~ ~ 72.93 194.00 28.00
3 28 50 45 39 28 40 16 25 46 54 50 39 65 47 59 68 28 18 36 22 19 26 33 39 41 41 44 37 32 50 82 40.23 82.00 31.00
4 78 55 37 35 31 49 34 39 27 20 28 15 13 40 40 33 38 25 30 52 55 50 35 24 9.00 7.00 11 13 19 13 ~ 31.83 78.00 30.00
5 12 12 20 4.00 ~ 22 37 28 26 31 31 26 30 19 21 18 17 27 22 20 19 13 12 21 23 25 21 14 10 ~ 7.00 20.28 37.00 29.00
6 15 14 26 19 19 18 14 25 25 20 20 ~ 6.00 8.00 24 13 12 19 22 13 21 18 16 25 18 18 14 19 24 17 ~ 18.00 26.00 29.00
7 20 18 11 4.00 6.00 4.00 36 20 26 15 8.00 10 13 17 19 18 11 12 11 16 29 18 20 12 10 14 8.00 9.00 9.00 17 11 14.58 36.00 31.00
8 4.00 4.00 11 8.00 24 22 33 28 35 32 31 18 13 49 30 28 26 10 16 14 4.00 6.00 11 17 18 21 17 13 13 18 26 19.35 49.00 31.00
9 35 19 11 19 9.00 19 30 30 18 24 19 12 7.00 32 30 23 18 17 5.00 4.00 28 27 146 68 51 33 48 56 68 22 ~ 30.93 146.00 30.00
10 22 18 8.00 10 39 19 ~ 45 40 22 20 31 35 34 64 54 34 44 65 68 76 60 41 26 24 33 33 15 47 74 61 38.73 76.00 30.00
11 61 36 46 24 28 30 36 40 54 84 50 73 56 45 38 25 13 29 34 13 36 65 165 175 62 58 105 104 64 93 ~ 58.07 175.00 30.00
12 109 121 78 60 35 46 41 53 113 119 94 65 28 99 178 64 130 169 48 37 41 77 63 49 43 37 ~ 58 97 78 35 75.50 178.00 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. 19 50 15 4 2 0 0 0 90 71 21 6 2 0 0 0 194
REL. 21.1 55.5 16.6 4.4 2.2 0.0 0.0 0.0 100.0 78.9 23.3 6.7 2.2 0.0 0.0 0.06.2
ID 21 55 16 8 11 0 0 0 113
ABS. 73 14 1 0 0 0 0 0 88 15 1 0 0 0 0 0 78
REL. 82.9 15.9 1.1 0.0 0.0 0.0 0.0 0.0 100.0 17.0 1.1 0.0 0.0 0.0 0.0 0.0 1.4
ID 82 15 1 0 0 0 0 0 100
ABS. 82 7 2 1 0 0 0 0 92 10 3 1 0 0 0 0 146
REL. 89.1 7.6 2.1 1.0 0.0 0.0 0.0 0.0100.0 10.9 3.3 1.1 0.0 0.0 0.0 0.0 23.9
ID 89 7 2 2 0 0 0 0 101
ABS. 21 46 12 7 4 0 0 0 90 69 23 11 4 0 0 0 178
REL 23.3 51.1 13.3 7.7 4.4 0.0 0.0 0.0100.0 76.7 25.6 12.2 4.4 0.0 0.0 0.015.12
ID 23 51 13 15 22 0 0 0 125
Year
ABS. 195 117 30 12 6 0 0 0 360 165 48 18 6 0 0 0 194
REL. 54.1 32.5 8.3 3.3 1.6 0.0 0.0 0.0100.0 45.8 13.3 5.0 1.7 0.0 0.0 0.0 6.2
ID 54 32 8 6 8 0 0 0 110

Note:

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