Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
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 32 28 28 27 56 62 124 60 46 59 68 61 31 38 53 33 23 18 27 27 27 36 46 55 50 53 57 47 17 18 18 42.75 123.84 31.00
2 30 31 26 24 20 30 22 14 17 29 47 30 14 27 26 21 28 27 39 30 53 63 46 34 27 42 47 43 31 ~ ~ 31.59 63.38 29.00
3 18 18 17 14 18 23 20 16 15 26 16 30 33 24 22 27 28 28 27 40 34 77 74 60 43 38 38 39 28 36 27 30.81 76.69 31.00
4 29 33 48 45 27 25 24 27 31 36 48 38 14 33 ~ 34 35 37 31 36 36 24 20 17 27 37 26 19 25 25 ~ 30.54 47.68 29.00
5 22 24 31 31 32 24 19 22 27 32 29 20 19 22 33 35 27 18 16 12 16 20 27 30 22 23 13 11 13 17 24 22.90 34.79 31.00
6 23 27 20 25 21 20 21 27 23 21 18 24 23 20 19 17 15 21 31 30 26 17 18 15 19 14 14 16 17 16 ~ 20.60 31.38 30.00
7 15 17 12 8.96 7.78 15 18 11 6.99 9 13 15 11 13 11 11 16 17 13 14 16 13 16 24 14 12 14 11 10 16 20 13.65 24.02 31.00
8 24 15 12 15 16 19 19 16 23 21 19 14 20 26 20 20 20 20 17 17 12 21 23 22 20 13 20 26 25 33 25 19.78 33.29 31.00
9 21 8.79 11 15 22 16 48 26 26 36 37 51 33 40 31 24 33 33 40 29 35 45 25 35 52 64 61 47 38 33 ~ 33.83 64.15 30.00
10 23 47 52 56 52 32 28 25 35 33 48 60 95 58 37 78 62 51 86 45 53 53 44 35 23 25 25 36 25 72 34 46.05 95.02 31.00
11 28 46 62 25 56 33 65 53 56 36 50 56 84 59 65 101 45 34 71 72 59 121 99 108 51 25 38 104 86 86 ~ 62.50 120.61 30.00
12 59 48 58 72 46 34 39 98 71 27 25 30 19 19 18 17 31 43 82 68 49 81 70 66 38 59 49 47 82 36 28 48.63 97.56 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. 54 33 3 1 0 0 0 0 91 37 4 1 0 0 0 0 124
REL. 59.3 36.2 3.2 1.0 0.0 0.0 0.0 0.0 100.0 40.7 4.4 1.1 0.0 0.0 0.0 0.07.1
ID 59 36 3 2 0 0 0 0 101
ABS. 78 12 0 0 0 0 0 0 90 12 0 0 0 0 0 0 48
REL. 86.6 13.3 0.0 0.0 0.0 0.0 0.0 0.0 100.0 13.3 0.0 0.0 0.0 0.0 0.0 0.0 11.4
ID 86 13 0 0 0 0 0 0 100
ABS. 78 14 0 0 0 0 0 0 92 14 0 0 0 0 0 0 64
REL. 84.7 15.2 0.0 0.0 0.0 0.0 0.0 0.0100.0 15.2 0.0 0.0 0.0 0.0 0.0 0.0 26.9
ID 84 15 0 0 0 0 0 0 100
ABS. 22 48 18 4 0 0 0 0 92 70 22 4 0 0 0 0 121
REL 23.9 52.1 19.5 4.3 0.0 0.0 0.0 0.0100.0 76.1 23.9 4.3 0.0 0.0 0.0 0.022.11
ID 23 52 19 8 0 0 0 0 104
Year
ABS. 232 107 21 5 0 0 0 0 365 133 26 5 0 0 0 0 124
REL. 63.5 29.3 5.7 1.3 0.0 0.0 0.0 0.0100.0 36.4 7.1 1.4 0.0 0.0 0.0 0.0 7.1
ID 63 29 5 2 0 0 0 0 101

Note:

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