Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 545 - Usti n.L.-Kras.Brezno
Code:CZULHSUKB
Institution:Public Health Service
Region:Severocesky
District:Usti nad Labem
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ 19 13 31 ~ 25 ~ 41 45 69 100 58 81 81 50 89 42 40 38 42 34 12 23 16 30 59 ~ 113 68 51 20 47.78 113.00 27.00
2 38 57 45 62 19 141 64 35 99 52 158 36 31 42 37 62 50 76 58 47 80 60 31 102 ~ ~ 49 18 ~ ~ ~ 59.58 158.00 26.00
3 20 38 33 36 29 38 28 13 17 32 31 36 38 27 49 38 31 19 57 32 22 29 51 40 35 28 115 43 43 34 79 37.45 115.00 31.00
4 48 51 38 33 54 59 33 16 16 17 27 8.00 13 35 13 44 22 17 23 38 28 43 48 41 40 11 18 12 8.00 29 ~ 29.43 59.00 30.00
5 8.00 12 8.00 19 8.00 31 32 34 37 23 24 34 15 34 8.00 13 17 9.00 17 24 25 ~ ~ ~ 40 60 39 34 31 26 27 24.61 60.00 28.00
6 26 35 ~ 22 44 29 17 26 45 32 38 17 14 21 86 78 41 33 44 20 21 8.00 13 44 25 19 30 22 9.00 24 ~ 30.45 86.00 29.00
7 25 19 19 24 24 32 19 21 21 25 15 18 ~ 15 17 22 22 18 22 24 28 15 13 12 12 30 27 45 15 64 ~ 22.86 64.00 29.00
8 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 49 29 14 18 31 47 26 11 24 12 15 27 25.25 49.00 12.00
9 17 13 25 24 29 35 28 36 23 25 24 34 22 14 22 48 55 32 44 53 81 29 23 36 56 61 69 80 67 35 ~ 38.00 81.00 30.00
10 49 26 8.00 8.00 24 16 56 46 42 22 44 40 56 74 48 39 26 12 ~ 46 46 104 45 29 42 41 32 ~ ~ ~ ~ 39.27 104.00 26.00
11 ~ ~ 57 48 27 35 21 59 90 79 39 48 48 37 39 34 19 21 23 8.00 13 39 ~ ~ ~ ~ ~ ~ ~ ~ ~ 39.20 90.00 20.00
12 ~ ~ ~ 48 21 8.00 29 29 ~ 170 88 39 19 57 173 45 34 172 27 23 12 66 ~ ~ ~ ~ ~ ~ ~ ~ ~ 58.89 173.00 18.00

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. 28 41 10 4 1 0 0 0 84 56 15 5 1 0 0 0 158
REL. 33.3 48.8 11.9 4.7 1.1 0.0 0.0 0.0 100.0 66.7 17.9 6.0 1.2 0.0 0.0 0.011.2
ID 33 48 11 9 5 0 0 0 109
ABS. 58 27 2 0 0 0 0 0 87 29 2 0 0 0 0 0 86
REL. 66.6 31.0 2.2 0.0 0.0 0.0 0.0 0.0 100.0 33.3 2.3 0.0 0.0 0.0 0.0 0.0 15.6
ID 66 31 2 0 0 0 0 0 100
ABS. 52 15 4 0 0 0 0 0 71 19 4 0 0 0 0 0 81
REL. 73.2 21.1 5.6 0.0 0.0 0.0 0.0 0.0100.0 26.8 5.6 0.0 0.0 0.0 0.0 0.0 21.9
ID 73 21 5 0 0 0 0 0 100
ABS. 25 31 4 1 3 0 0 0 64 39 8 4 3 0 0 0 173
REL 39.0 48.4 6.2 1.5 4.6 0.0 0.0 0.0100.0 60.9 12.5 6.3 4.7 0.0 0.0 0.015.12
ID 39 48 6 3 23 0 0 0 120
Year
ABS. 163 114 20 5 4 0 0 0 306 143 29 9 4 0 0 0 173
REL. 53.2 37.2 6.5 1.6 1.3 0.0 0.0 0.0100.0 46.7 9.5 2.9 1.3 0.0 0.0 0.015.12
ID 53 37 6 3 6 0 0 0 106

Note:

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