Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 37 - Kopisty
Code:CZMOCMKOP
Institution:Czech Hydrometeorological Institute
Region:Severocesky
District:Most
IHd: 100
Measure method:guajacol (modif. Jakobs-Hochheiser) - spectrophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 5.00 9.00 9.00 9.00 26 127 61 34 14 25 27 26 19 18 6.00 64 42 68 43 39 60 19 38 49 6.00 42 32 38 20 18 41 33.35 127.00 31.00
2 64 32 45 29 15 19 21 39 87 154 69 25 14 33 82 32 24 42 75 53 41 25 16 15 12 69 53 11 ~ ~ ~ 42.71 154.00 28.00
3 38 40 45 68 25 47 33 40 58 38 19 59 30 25 19 35 75 84 41 23 25 30 32 53 84 59 25 14 34 69 42 42.23 84.00 31.00
4 72 67 51 23 28 47 30 30 52 26 27 30 28 53 17 13 9.00 19 11 48 53 55 39 21 4.00 18 29 39 47 45 ~ 34.37 72.00 30.00
5 20 51 35 23 24 21 21 28 41 30 31 31 32 27 14 35 23 17 32 24 38 22 35 40 32 34 48 26 29 28 26 29.61 51.00 31.00
6 33 30 41 25 18 17 42 40 54 24 26 25 16 19 27 31 32 21 15 17 16 21 29 36 26 26 24 35 42 34 ~ 28.07 54.00 30.00
7 35 32 24 26 19 19 19 24 17 17 16 19 28 28 34 33 31 32 44 35 11 5.00 13 16 20 12 ~ 31 32 32 27 24.37 44.00 30.00
8 32 44 47 58 50 37 29 25 29 24 19 28 30 20 16 24 31 37 24 27 21 21 38 44 42 48 31 23 27 35 19 31.61 58.00 31.00
9 32 26 52 30 34 47 51 40 40 56 37 34 48 23 61 45 29 20 17 20 36 47 32 36 31 22 32 26 20 16 ~ 34.67 61.00 30.00
10 20 22 17 25 26 25 29 32 19 19 24 36 43 31 34 29 22 16 25 27 21 23 25 23 38 35 29 35 38 36 33 27.65 43.00 31.00
11 50 42 34 50 31 30 24 29 28 29 28 38 33 18 47 72 53 43 39 41 45 43 41 60 30 52 47 47 40 59 ~ 40.77 72.00 30.00
12 24 14 17 25 19 27 28 32 80 ~ ~ ~ ~ 26 30 38 36 26 24 20 103 48 50 51 63 46 67 47 62 37 56 40.59 103.00 27.00

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. 44 33 11 1 1 0 0 0 90 46 13 2 1 0 0 0 154
REL. 48.8 36.6 12.2 1.1 1.1 0.0 0.0 0.0 100.0 51.1 14.4 2.2 1.1 0.0 0.0 0.010.2
ID 48 36 12 2 5 0 0 0 105
ABS. 61 28 2 0 0 0 0 0 91 30 2 0 0 0 0 0 72
REL. 67.0 30.7 2.1 0.0 0.0 0.0 0.0 0.0 100.0 33.0 2.2 0.0 0.0 0.0 0.0 0.0 1.4
ID 67 30 2 0 0 0 0 0 100
ABS. 61 30 0 0 0 0 0 0 91 30 0 0 0 0 0 0 61
REL. 67.0 32.9 0.0 0.0 0.0 0.0 0.0 0.0100.0 33.0 0.0 0.0 0.0 0.0 0.0 0.0 15.9
ID 67 32 0 0 0 0 0 0 100
ABS. 46 38 3 1 0 0 0 0 88 42 4 1 0 0 0 0 103
REL 52.2 43.1 3.4 1.1 0.0 0.0 0.0 0.0100.0 47.7 4.5 1.1 0.0 0.0 0.0 0.021.12
ID 52 43 3 2 0 0 0 0 101
Year
ABS. 212 129 16 2 1 0 0 0 360 148 19 3 1 0 0 0 154
REL. 58.8 35.8 4.4 0.5 0.2 0.0 0.0 0.0100.0 41.1 5.3 0.8 0.3 0.0 0.0 0.0 10.2
ID 58 35 4 1 1 0 0 0 101

Note:

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