Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:SO2-sulphur dioxide
Station:1012 - Usti n.L.-mesto
Code:CZULCMUNM
Institution:CHMI
Region:Severocesky
District:Usti nad Labem
IHd: 150
Measure method:UV-fluorescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 172 38 25 17 25 37 54 39 39 54 95 86 120 85 73 57 29 46 51 31 10 21 32 48 41 81 150 119 41 54 22 57.70 172.16 31.00
2 90 82 43 45 90 76 45 34 63 60 72 28 49 40 26 29 15 37 34 52 60 67 16 29 21 36 31 19 ~ ~ ~ 45.96 90.40 28.00
3 25 34 31 25 15 30 31 13 11 16 62 52 25 6.54 13 15 6.22 20 11 3.95 7.14 14 16 14 20 31 41 12 33 48 52 23.63 61.96 31.00
4 39 20 13 19 14 22 21 25 22 18 22 5.89 8.89 31 35 37 19 12 9 28 20 21 41 35 25 20 28 12 20 11 ~ 21.80 41.20 30.00
5 12 20 16 6.72 16 35 36 21 19 21 17 14 16 15 7.45 6.51 7.33 8.01 7.50 5.93 9 8.82 14 16 21 37 19 20 21 11 27 16.39 36.67 31.00
6 24 29 32 19 24 37 19 20 17 18 9 8.51 5.55 18 31 19 12 11 26 10 19 16 15 10 10 13 22 17 25 17 ~ 18.50 37.11 30.00
7 22 5.49 28 19 19 23 14 10 16 8.78 22 20 22 13 23 23 25 21 24 14 29 8.40 21 9 3.97 12 20 13 34 13 17 17.84 34.25 31.00
8 14 14 6.34 14 10 13 23 26 3.95 16 42 26 6.36 8.81 20 22 29 16 9 23 22 25 21 26 17 14 18 24 10 12 6.44 17.32 41.96 31.00
9 7.01 25 27 22 8.63 12 22 15 12 15 5.37 10 11 10 24 25 17 9 11 8.19 9.00 16 18 23 24 32 43 65 14 17 ~ 18.53 65.17 30.00
10 22 18 14 23 30 27 15 28 13 24 16 16 11 21 17 21 14 9 36 18 17 32 14 10 13 19 13 15 23 20 13 18.86 36.47 31.00
11 7.83 20 16 14 32 21 16 25 18 20 8.95 13 26 24 13 22 7.51 23 9 7.09 15 60 54 39 49 42 26 29 24 47 ~ 24.28 60.25 30.00
12 54 30 39 18 24 29 27 32 38 74 62 66 40 30 32 28 28 35 32 16 15 18 21 23 22 18 23 28 59 51 31 33.69 74.48 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- 50 51- 100 101- 150 151- 225 226- 300 301- 450 451- 600 over 600 50 100 150 225 300 450 600
ABS. 63 23 3 1 0 0 0 0 90 27 4 1 0 0 0 0 172
REL. 70.0 25.5 3.3 1.1 0.0 0.0 0.0 0.0 100.0 30.0 4.4 1.1 0.0 0.0 0.0 0.01.1
ID 70 25 3 2 0 0 0 0 101
ABS. 91 0 0 0 0 0 0 0 91 0 0 0 0 0 0 0 41
REL.100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23.4
ID 100 0 0 0 0 0 0 0 100
ABS. 91 1 0 0 0 0 0 0 92 1 0 0 0 0 0 0 65
REL. 98.9 1.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 28.9
ID 98 1 0 0 0 0 0 0 100
ABS. 84 8 0 0 0 0 0 0 92 8 0 0 0 0 0 0 74
REL 91.3 8.6 0.0 0.0 0.0 0.0 0.0 0.0100.0 8.7 0.0 0.0 0.0 0.0 0.0 0.010.12
ID 91 8 0 0 0 0 0 0 100
Year
ABS. 329 32 3 1 0 0 0 0 365 36 4 1 0 0 0 0 172
REL. 90.1 8.7 0.8 0.2 0.0 0.0 0.0 0.0100.0 9.9 1.1 0.3 0.0 0.0 0.0 0.0 1.1
ID 90 8 0 0 0 0 100

Note:

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