Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 80 - Doksany
Code:CZLTCMDOK
Institution:Czech Hydrometeorological Institute
Region:Ustecky
District:Litomerice
IHd: 100
Measure method:guajacol (modif. Jakobs-Hochheiser) - spectrophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 8.00 13 33 56 83 115 76 32 39 55 30 40 47 16 24 30 32 24 12 19 22 28 24 16 14 13 12 16 30 39 28 33.10 115.00 31.00
2 33 32 52 61 41 23 11 6.00 5.00 8.00 10 15 17 27 16 32 20 19 11 31 2.00 10 11 24 17 17 17 30 ~ ~ ~ 21.36 61.00 28.00
3 21 17 31 22 34 11 24 12 15 30 40 36 13 18 22 27 67 25 29 18 14 18 9.00 14 11 21 52 46 42 20 25 25.29 67.00 31.00
4 21 12 20 10 6.00 15 21 17 12 11 10 11 21 23 27 33 32 24 21 18 33 19 20 25 18 16 19 17 23 15 ~ 19.00 33.00 30.00
5 21 16 15 17 22 15 13 2.00 11 18 24 19 11 17 14 12 10 12 11 18 12 21 19 15 14 20 28 21 22 13 15 16.06 28.00 31.00
6 20 25 ~ ~ ~ ~ 11 10 10 15 11 13 13 13 8.00 17 9.00 49 7.00 12 11 11 13 9.00 13 15 13 10 17 9.00 ~ 14.00 49.00 26.00
7 15 15 16 12 11 17 33 5.00 ~ ~ 16 22 12 12 17 25 2.00 ~ ~ 13 19 23 14 11 19 ~ ~ ~ ~ ~ ~ 15.67 33.00 21.00
8 ~ ~ ~ ~ 18 9.00 16 17 18 15 15 10 11 ~ 10 23 30 14 21 19 6.00 33 13 13 15 8.00 15 18 16 5.00 27 15.96 33.00 26.00
9 ~ 16 54 16 ~ 18 26 14 21 23 15 26 21 21 38 17 13 14 22 15 17 13 11 23 ~ 15 12 24 24 24 ~ 20.48 54.00 27.00
10 33 25 ~ 17 15 21 25 15 19 18 13 12 15 ~ 12 14 14 9.00 20 42 28 10 19 26 9.00 8.00 16 20 40 34 29 19.93 42.00 29.00
11 13 16 21 44 45 43 19 16 23 31 41 51 44 41 38 19 38 27 25 29 33 24 28 40 31 30 26 37 39 45 ~ 31.90 51.00 30.00
12 35 27 35 26 26 27 16 28 22 50 7.00 34 35 22 39 29 29 98 54 67 26 37 22 20 14 16 32 42 24 18 19 31.48 98.00 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. 71 15 3 1 0 0 0 0 90 19 4 1 0 0 0 0 115
REL. 78.8 16.6 3.3 1.1 0.0 0.0 0.0 0.0 100.0 21.1 4.4 1.1 0.0 0.0 0.0 0.06.1
ID 78 16 3 2 0 0 0 0 101
ABS. 86 1 0 0 0 0 0 0 87 1 0 0 0 0 0 0 49
REL. 98.8 1.1 0.0 0.0 0.0 0.0 0.0 0.0 100.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 18.6
ID 98 1 0 0 0 0 0 0 100
ABS. 72 2 0 0 0 0 0 0 74 2 0 0 0 0 0 0 54
REL. 97.2 2.7 0.0 0.0 0.0 0.0 0.0 0.0100.0 2.7 0.0 0.0 0.0 0.0 0.0 0.0 3.9
ID 97 2 0 0 0 0 0 0 100
ABS. 63 25 2 0 0 0 0 0 90 27 2 0 0 0 0 0 98
REL 70.0 27.7 2.2 0.0 0.0 0.0 0.0 0.0100.0 30.0 2.2 0.0 0.0 0.0 0.0 0.018.12
ID 70 27 2 0 0 0 0 0 100
Year
ABS. 292 43 5 1 0 0 0 0 341 49 6 1 0 0 0 0 115
REL. 85.6 12.6 1.4 0.2 0.0 0.0 0.0 0.0100.0 14.4 1.8 0.3 0.0 0.0 0.0 0.0 6.1
ID 85 12 1 0 0 0 0 100

Note:

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