Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:SO2-sulphur dioxide
Station: 409 - Chomutov-NSP
Code:CZCVHSCHU
Institution:Public Health Service
Region:Severocesky
District:Chomutov
IHd: 150
Measure method:coulometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 26 28 17 17 17 15 21 24 26 39 57 90 126 139 35 37 21 30 26 19 16 22 19 19 21 ~ 47 29 25 23 19 35.00 139.00 30.00
2 34 35 21 29 50 39 40 27 39 46 37 16 18 19 17 19 16 25 24 33 41 43 18 25 24 20 21 15 ~ ~ ~ 28.25 50.00 28.00
3 15 20 24 21 13 17 18 14 17 19 21 26 12 9.00 16 14 12 13 12 16 19 23 39 30 44 39 36 33 33 49 95 24.81 95.00 31.00
4 46 25 28 26 27 27 26 21 30 32 27 19 17 24 ~ 25 25 20 19 24 24 33 29 28 30 32 30 35 27 38 ~ 27.38 46.00 29.00
5 29 37 32 21 18 22 22 31 30 33 33 32 38 33 26 32 25 23 18 ~ 21 14 18 22 27 29 33 27 24 32 33 27.17 38.00 30.00
6 10 73 41 ~ 27 20 17 10 12 20 58 81 10 15 10 10 9.00 10 ~ 10 12 22 ~ 5.00 18 15 18 10 ~ ~ ~ 21.72 81.00 25.00
7 ~ 3.00 3.00 2.00 3.00 2.00 2.00 6.00 7.00 9.00 8.00 12 11 8.00 17 16 24 11 17 37 25 58 28 21 30 41 28 15 24 18 16 16.73 58.00 30.00
8 36 23 16 17 16 22 20 28 34 60 50 49 32 17 37 39 42 20 23 32 19 11 12 10 6.00 23 8.00 8.00 13 7.00 18 24.13 60.00 31.00
9 47 38 12 20 10 17 79 20 19 28 14 12 11 11 7.00 9.00 17 10 29 26 28 46 51 73 65 51 37 9.00 13 46 ~ 28.50 79.00 30.00
10 46 85 21 25 56 47 33 23 15 3.00 2.00 3.00 3.00 8.00 8.00 9.00 7.00 2.00 26 3.00 15 10 11 7.00 5.00 4.00 9.00 6.00 6.00 14 9.00 16.81 85.00 31.00
11 9.00 7.00 8.00 7.00 6.00 6.00 6.00 17 23 7.00 8.00 15 19 14 18 9.00 13 12 20 7.00 20 78 76 53 28 33 29 35 27 84 ~ 23.13 84.00 30.00
12 75 135 37 20 10 5.00 9.00 8.00 43 266 57 55 10 5.00 9.00 3.00 27 35 12 10 4.00 11 15 18 9.00 5.00 10 17 51 20 7.00 32.19 266.00 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- 50 51- 100 101- 150 151- 225 226- 300 301- 450 451- 600 over 600 50 100 150 225 300 450 600
ABS. 84 3 2 0 0 0 0 0 89 5 2 0 0 0 0 0 139
REL. 94.3 3.3 2.2 0.0 0.0 0.0 0.0 0.0 100.0 5.6 2.2 0.0 0.0 0.0 0.0 0.014.1
ID 94 3 2 0 0 0 0 0 100
ABS. 81 3 0 0 0 0 0 0 84 3 0 0 0 0 0 0 81
REL. 96.4 3.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 3.6 0.0 0.0 0.0 0.0 0.0 0.0 12.6
ID 96 3 0 0 0 0 0 0 100
ABS. 84 7 0 0 0 0 0 0 91 7 0 0 0 0 0 0 79
REL. 92.3 7.6 0.0 0.0 0.0 0.0 0.0 0.0100.0 7.7 0.0 0.0 0.0 0.0 0.0 0.0 7.9
ID 92 7 0 0 0 0 0 0 100
ABS. 80 10 1 0 1 0 0 0 92 12 2 1 1 0 0 0 266
REL 86.9 10.8 1.0 0.0 1.0 0.0 0.0 0.0100.0 13.0 2.2 1.1 1.1 0.0 0.0 0.010.12
ID 86 10 1 0 5 0 0 0 104
Year
ABS. 329 23 3 0 1 0 0 0 356 27 4 1 1 0 0 0 266
REL. 92.4 6.4 0.8 0.0 0.2 0.0 0.0 0.0100.0 7.6 1.1 0.3 0.3 0.0 0.0 0.010.12
ID 92 6 0 1 0 0 0 101

Note:

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