Detailed overview of ambient air pollution valuis from individual stations

261 - Chomutov-OHS

Year: 1997
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 261 - Chomutov-OHS
Code:CZCVHSCHO
Institution:Public Health Service
Region:Severocesky
District:Chomutov
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 110 60 30 50 30 60 80 ~ 80 100 90 80 ~ 100 150 180 210 180 140 140 90 30 70 90 60 30 70 50 40 30 30 84.83 210.00 29.00
2 20 60 80 80 50 50 80 80 50 50 50 50 30 40 30 20 50 50 30 30 30 50 60 70 40 30 40 60 ~ ~ ~ 48.57 80.00 28.00
3 60 40 40 50 60 60 60 60 50 50 60 60 30 50 60 20 30 30 40 40 30 20 20 30 40 40 ~ 10 10 10 20 39.33 60.00 30.00
4 10 33 33 14 17 10 26 44 58 28 15 13 18 10 14 15 29 25 15 24 32 34 34 45 26 25 34 30 24 19 ~ 25.13 58.00 30.00
5 23 25 26 31 23 20 29 24 27 24 23 27 35 40 31 29 ~ 22 24 24 24 23 21 17 24 27 12 16 18 12 10 23.70 40.00 30.00
6 23 39 27 39 29 25 23 25 25 46 30 18 12 10 12 20 22 20 27 26 29 25 21 19 27 29 7.00 30 27 25 ~ 24.57 46.00 30.00
7 30 30 20 30 10 10 10 20 20 20 30 20 20 20 20 30 30 20 10 20 20 30 30 40 30 20 20 20 30 30 30 23.23 40.00 31.00
8 20 20 30 40 20 30 30 40 30 30 30 40 30 20 10 20 30 30 30 30 30 30 30 30 40 40 50 30 30 20 30 29.68 50.00 31.00
9 30 30 30 50 40 20 20 20 10 20 30 40 20 20 40 40 40 50 30 20 30 50 40 30 40 40 30 30 50 30 ~ 32.33 50.00 30.00
10 25 16 18 19 24 44 58 44 36 29 17 15 28 25 33 39 51 51 61 54 4.00 63 51 26 16 23 32 37 60 62 40 35.52 63.00 31.00
11 50 45 29 34 47 76 64 61 43 58 58 49 35 38 44 30 30 25 24 53 58 51 59 44 41 46 42 99 45 44 ~ 47.40 99.00 30.00
12 31 29 29 33 29 35 39 50 48 44 37 29 18 19 26 31 24 24 44 46 40 47 45 34 28 24 24 14 10 10 42 31.71 50.00 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. 26 39 15 4 2 1 0 0 87 61 22 7 3 1 0 0 210
REL. 29.8 44.8 17.2 4.5 2.2 1.1 0.0 0.0 100.0 70.1 25.3 8.0 3.4 1.1 0.0 0.017.1
ID 29 44 17 9 11 28 0 0 141
ABS. 79 11 0 0 0 0 0 0 90 11 0 0 0 0 0 0 58
REL. 87.7 12.2 0.0 0.0 0.0 0.0 0.0 0.0 100.0 12.2 0.0 0.0 0.0 0.0 0.0 0.0 9.4
ID 87 12 0 0 0 0 0 0 100
ABS. 73 19 0 0 0 0 0 0 92 19 0 0 0 0 0 0 50
REL. 79.3 20.6 0.0 0.0 0.0 0.0 0.0 0.0100.0 20.7 0.0 0.0 0.0 0.0 0.0 0.0 27.8
ID 79 20 0 0 0 0 0 0 100
ABS. 39 51 2 0 0 0 0 0 92 53 2 0 0 0 0 0 99
REL 42.3 55.4 2.1 0.0 0.0 0.0 0.0 0.0100.0 57.6 2.2 0.0 0.0 0.0 0.0 0.028.11
ID 42 55 2 0 0 0 0 0 100
Year
ABS. 217 120 17 4 2 1 0 0 361 144 24 7 3 1 0 0 210
REL. 60.1 33.2 4.7 1.1 0.5 0.2 0.0 0.0100.0 39.9 6.6 1.9 0.8 0.3 0.0 0.0 17.1
ID 60 33 4 2 2 6 0 0 109

Note:

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

Detailed overview of ambient air pollution valuis from individual stations - selection station