Detailed overview of ambient air pollution valuis from individual stations

409 - Chomutov-NSP

Year: 1997
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 409 - Chomutov-NSP
Code:CZCVHSCHU
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 60 ~ ~ ~ ~ 50 50 110 150 70 120 80 50 110 100 90 130 ~ 20 150 70 70 40 60 30 30 50 50 20 20 30 69.62 150.00 26.00
2 20 40 60 50 50 40 70 60 100 30 50 50 70 50 40 30 50 40 30 50 50 40 ~ ~ ~ ~ ~ ~ ~ ~ ~ 48.64 100.00 22.00
3 50 40 20 40 70 40 40 50 40 30 50 40 20 20 50 20 30 20 ~ 40 ~ 80 10 50 ~ 30 ~ 10 10 10 10 34.07 80.00 27.00
4 11 39 17 15 25 25 16 65 24 19 19 32 ~ 14 10 17 34 ~ 22 22 19 31 30 81 42 37 28 14 13 13 ~ 26.21 81.00 28.00
5 19 40 36 22 17 10 12 30 42 13 19 13 23 102 33 30 ~ 58 8.00 12 10 16 12 12 63 62 31 22 13 10 10 26.67 102.00 30.00
6 12 52 38 32 30 18 28 32 10 19 23 14 17 10 7.00 10 10 10 31 18 15 11 34 22 43 18 11 ~ 10 15 ~ 20.69 52.00 29.00
7 20 20 20 10 10 10 20 20 30 20 20 20 20 10 10 20 20 10 10 10 20 10 20 20 20 10 10 10 10 30 20 16.45 30.00 31.00
8 10 10 20 20 20 20 20 20 20 30 30 10 10 20 10 30 10 40 30 30 40 ~ ~ ~ 40 20 40 10 10 30 20 22.14 40.00 28.00
9 20 10 20 20 30 10 30 10 10 4.00 40 30 10 20 30 30 40 40 20 10 20 40 30 10 30 30 30 30 20 30 ~ 23.47 40.00 30.00
10 25 10 10 11 18 33 45 36 22 17 10 16 11 14 14 36 ~ 27 34 32 29 11 27 27 12 12 22 23 38 24 34 22.67 45.00 30.00
11 33 47 25 36 33 27 63 44 29 54 58 ~ 13 35 16 33 29 16 27 39 63 21 41 31 71 41 32 34 33 21 ~ 36.03 71.00 29.00
12 23 31 24 38 27 31 24 48 35 39 ~ 18 8.00 25 46 16 17 41 58 ~ ~ 51 51 73 74 22 29 34 33 53 41 36.07 74.00 28.00

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. 23 35 11 6 0 0 0 0 75 52 17 6 0 0 0 0 150
REL. 30.6 46.6 14.6 8.0 0.0 0.0 0.0 0.0 100.0 69.3 22.7 8.0 0.0 0.0 0.0 0.09.1
ID 30 46 14 16 0 0 0 0 108
ABS. 70 15 1 1 0 0 0 0 87 17 2 1 0 0 0 0 102
REL. 80.4 17.2 1.1 1.1 0.0 0.0 0.0 0.0 100.0 19.5 2.3 1.1 0.0 0.0 0.0 0.0 14.5
ID 80 17 1 2 0 0 0 0 101
ABS. 81 8 0 0 0 0 0 0 89 8 0 0 0 0 0 0 40
REL. 91.0 8.9 0.0 0.0 0.0 0.0 0.0 0.0100.0 9.0 0.0 0.0 0.0 0.0 0.0 0.0 18.8
ID 91 8 0 0 0 0 0 0 100
ABS. 54 30 3 0 0 0 0 0 87 33 3 0 0 0 0 0 74
REL 62.0 34.4 3.4 0.0 0.0 0.0 0.0 0.0100.0 37.9 3.4 0.0 0.0 0.0 0.0 0.025.12
ID 62 34 3 0 0 0 0 0 100
Year
ABS. 228 88 15 7 0 0 0 0 338 110 22 7 0 0 0 0 150
REL. 67.4 26.0 4.4 2.0 0.0 0.0 0.0 0.0100.0 32.5 6.5 2.1 0.0 0.0 0.0 0.0 9.1
ID 67 26 4 4 0 0 0 0 102

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