Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1106 - Slany
Code:CZKLCMSLA
Institution:Czech Hydrometeorological Institute
Region:Stredocesky
District:Kladno
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 19 21 43 24 28 45 24 23 25 19 42 24 32 20 19 34 43 49 42 53 33 75 46 38 27 38 38 28 22 35 43 33.88 75.39 31.00
2 44 54 54 24 13 13 24 33 80 90 63 28 26 40 40 29 21 30 42 28 20 23 22 27 26 48 39 22 ~ ~ ~ 35.84 90.45 28.00
3 17 28 31 56 37 30 33 29 67 39 35 59 36 38 32 31 52 60 41 23 20 25 27 51 67 60 31 26 43 46 47 39.38 66.85 31.00
4 45 34 31 22 21 28 24 26 25 16 21 18 16 23 18 26 20 24 31 35 28 37 24 22 29 35 26 36 28 33 ~ 26.71 45.47 30.00
5 20 22 30 16 17 22 26 26 31 20 14 16 17 16 10 21 18 15 18 19 29 16 18 26 22 22 28 24 17 17 15 20.26 30.84 31.00
6 21 24 18 14 14 13 20 18 20 23 26 17 18 18 19 22 18 18 17 11 15 13 20 30 19 14 15 16 21 15 ~ 18.26 29.60 30.00
7 21 22 15 13 10 12 15 20 15 8.81 11 ~ ~ ~ ~ 26 22 28 30 16 16 19 19 16 20 13 19 19 23 22 16 18.09 30.35 27.00
8 22 29 31 35 42 57 48 56 61 45 38 35 35 32 26 30 26 18 17 16 14 23 32 36 37 27 34 23 35 36 34 33.19 60.55 31.00
9 25 32 33 20 25 38 35 39 38 37 28 36 38 40 58 40 32 22 23 25 38 50 50 39 36 19 24 22 15 16 ~ 32.48 57.64 30.00
10 13 18 19 23 36 26 27 29 15 16 20 43 51 37 54 37 40 55 61 42 36 37 38 37 58 27 26 41 48 59 42 35.82 60.75 31.00
11 102 88 65 89 154 40 24 50 52 45 47 52 39 28 60 53 47 37 56 50 49 44 69 87 62 99 44 81 63 63 ~ 61.23 153.52 30.00
12 30 27 20 18 19 21 20 27 33 33 20 9 19 26 41 39 29 34 30 43 70 110 97 30 32 21 34 43 41 30 41 35.03 109.86 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. 46 39 5 0 0 0 0 0 90 44 5 0 0 0 0 0 90
REL. 51.1 43.3 5.5 0.0 0.0 0.0 0.0 0.0 100.0 48.9 5.6 0.0 0.0 0.0 0.0 0.010.2
ID 51 43 5 0 0 0 0 0 100
ABS. 85 6 0 0 0 0 0 0 91 6 0 0 0 0 0 0 45
REL. 93.4 6.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 6.6 0.0 0.0 0.0 0.0 0.0 0.0 1.4
ID 93 6 0 0 0 0 0 0 100
ABS. 57 31 0 0 0 0 0 0 88 31 0 0 0 0 0 0 61
REL. 64.7 35.2 0.0 0.0 0.0 0.0 0.0 0.0100.0 35.2 0.0 0.0 0.0 0.0 0.0 0.0 9.8
ID 64 35 0 0 0 0 0 0 100
ABS. 34 47 8 2 1 0 0 0 92 58 11 3 1 0 0 0 154
REL 36.9 51.0 8.6 2.1 1.0 0.0 0.0 0.0100.0 63.0 12.0 3.3 1.1 0.0 0.0 0.0 5.11
ID 36 51 8 4 5 0 0 0 106
Year
ABS. 222 123 13 2 1 0 0 0 361 139 16 3 1 0 0 0 154
REL. 61.4 34.0 3.6 0.5 0.2 0.0 0.0 0.0100.0 38.5 4.4 0.8 0.3 0.0 0.0 0.0 5.11
ID 61 34 3 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