Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1437 - Mlada Boleslav
Code:CZMBCMMBO
Institution:Czech Hydrometeorological Institute
Region:Stredocesky
District:Mlada Boleslav
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 17 13 58 125 135 102 118 43 62 45 47 51 54 56 48 34 48 41 55 18 53 64 43 50 44 17 30 31 20 64 100 54.45 135.23 31.00
2 86 30 23 70 55 42 40 23 16 11 13 11 25 42 65 26 35 44 22 18 20 26 13 12 41 24 23 21 ~ ~ ~ 31.51 86.17 28.00
3 27 18 16 56 83 61 12 67 26 68 38 33 41 20 37 22 60 41 27 32 46 13 10 8.42 16 16 33 53 89 68 27 37.60 89.11 31.00
4 48 31 19 22 19 12 19 41 26 ~ ~ ~ 18 20 38 45 40 33 23 19 18 ~ ~ 28 40 30 15 21 33 23 ~ 27.25 48.35 25.00
5 19 33 20 17 21 23 20 20 19 19 26 16 31 19 28 34 23 15 14 22 22 20 19 23 15 16 20 19 19 25 20 21.26 34.22 31.00
6 11 19 26 21 16 16 17 14 16 16 35 30 19 28 18 19 33 25 24 20 17 13 14 20 25 24 19 16 15 24 ~ 20.23 34.58 30.00
7 25 28 26 15 12 10 17 22 21 16 32 21 13 12 16 19 22 19 16 13 13 15 25 16 25 26 17 19 24 19 18 19.07 32.10 31.00
8 21 20 16 12 21 17 19 24 18 11 18 20 12 15 19 22 22 29 26 25 30 39 37 23 24 22 24 34 40 49 19 23.56 48.74 31.00
9 17 24 31 30 25 27 23 34 40 32 28 42 53 17 15 28 39 33 49 41 33 23 26 ~ 34 48 23 35 61 94 ~ 34.64 93.63 29.00
10 100 104 71 33 20 18 22 24 22 26 22 19 21 45 45 48 43 31 19 67 40 99 29 56 31 13 12 13 41 57 38 39.57 104.49 31.00
11 70 32 18 40 28 35 54 54 21 69 56 103 44 64 121 44 64 128 61 33 39 57 71 23 68 71 53 44 69 46 ~ 56.05 128.36 30.00
12 37 44 66 60 44 40 29 27 39 50 74 38 36 33 36 48 64 39 108 84 88 52 45 20 18 19 24 44 103 55 30 48.23 108.19 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. 41 37 7 5 0 0 0 0 90 49 12 5 0 0 0 0 135
REL. 45.5 41.1 7.7 5.5 0.0 0.0 0.0 0.0 100.0 54.4 13.3 5.6 0.0 0.0 0.0 0.05.1
ID 45 41 7 11 0 0 0 0 105
ABS. 77 9 0 0 0 0 0 0 86 9 0 0 0 0 0 0 48
REL. 89.5 10.4 0.0 0.0 0.0 0.0 0.0 0.0 100.0 10.5 0.0 0.0 0.0 0.0 0.0 0.0 1.4
ID 89 10 0 0 0 0 0 0 100
ABS. 74 16 1 0 0 0 0 0 91 17 1 0 0 0 0 0 94
REL. 81.3 17.5 1.0 0.0 0.0 0.0 0.0 0.0100.0 18.7 1.1 0.0 0.0 0.0 0.0 0.0 30.9
ID 81 17 1 0 0 0 0 0 100
ABS. 31 42 13 6 0 0 0 0 92 61 19 6 0 0 0 0 128
REL 33.6 45.6 14.1 6.5 0.0 0.0 0.0 0.0100.0 66.3 20.7 6.5 0.0 0.0 0.0 0.018.11
ID 33 45 14 13 0 0 0 0 106
Year
ABS. 223 104 21 11 0 0 0 0 359 136 32 11 0 0 0 0 135
REL. 62.1 28.9 5.8 3.0 0.0 0.0 0.0 0.0100.0 37.9 8.9 3.1 0.0 0.0 0.0 0.0 5.1
ID 62 28 5 6 0 0 0 0 103

Note:

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