Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NO-nitrogen monoxide
Station:1140 - Beroun
Code:CZBECMBER
Institution:Czech Hydrometeorological Institute
Region:Stredocesky
District:Beroun
IHd: 150
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 5.34 12 27 14 74 145 26 41 14 ~ ~ 8.36 27 8.11 6.00 47 69 32 27 31 32 41 23 9 10 19 21 35 2.61 17 6.70 28.61 144.79 29.00
2 18 36 13 4.57 1.25 1.45 4.46 17 94 97 47 6.85 4.27 23 27 5.06 2.03 15 52 22 4.87 7.23 5.37 6.86 7.65 32 64 19 ~ ~ ~ 22.76 97.10 28.00
3 11 9 102 148 34 27 38 107 82 80 40 94 27 18 15 18 75 103 43 5.00 10 12 6.87 86 91 76 27 6.88 29 76 86 51.04 148.05 31.00
4 92 47 18 5.38 34 42 17 13 41 13 5.89 27 23 22 14 2.36 6.51 29 38 41 58 44 27 11 32 35 11 18 30 33 ~ 27.67 92.11 30.00
5 2.92 13 31 12 8.64 13 20 9 43 21 5.83 7.45 17 16 0.80 38 20 10 20 15 16 4.66 22 38 19 29 29 19 5.84 15 13 17.17 42.52 31.00
6 21 14 13 23 7.50 7.82 14 31 31 15 9 4.90 15 13 14 17 17 4.71 12 16 9 14 23 31 18 6.97 24 29 41 30 ~ 17.51 41.40 30.00
7 24 24 15 6.81 2.43 2.98 3.42 6.35 5.89 5.53 14 17 6.49 10 29 13 13 41 38 33 11 8.47 6.73 11 37 14 26 25 41 30 16 17.28 41.17 31.00
8 46 33 32 43 41 22 10 16 29 6.51 6.90 22 26 5.93 2.69 10 28 30 27 18 4.33 27 45 41 35 24 25 ~ ~ ~ 35 24.67 45.64 28.00
9 28 21 33 18 12 53 34 59 58 60 31 66 59 63 52 38 30 12 15 17 51 75 62 40 33 12 48 62 15 29 ~ 39.56 75.01 30.00
10 35 46 16 24 58 29 63 23 3.52 3.78 17 51 84 41 51 26 40 105 59 39 33 27 34 28 47 49 22 73 99 52 39 42.48 105.30 31.00
11 119 105 82 104 151 35 18 49 27 29 18 50 21 15 104 117 21 44 57 29 56 45 58 191 69 119 54 115 101 87 ~ 69.69 191.26 30.00
12 10 5.95 14 6.14 5.25 15 15 45 107 120 53 11 14 27 10 3.73 13 15 15 18 74 106 66 5.69 4.35 1.91 20 15 56 13 19 29.06 119.82 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- 50 51- 100 101- 150 151- 225 226- 300 301- 450 451- 600 over 600 50 100 150 225 300 450 600
ABS. 68 15 5 0 0 0 0 0 88 20 5 0 0 0 0 0 148
REL. 77.2 17.0 5.6 0.0 0.0 0.0 0.0 0.0 100.0 22.7 5.7 0.0 0.0 0.0 0.0 0.04.3
ID 77 17 5 0 0 0 0 0 100
ABS. 89 2 0 0 0 0 0 0 91 2 0 0 0 0 0 0 92
REL. 97.8 2.1 0.0 0.0 0.0 0.0 0.0 0.0 100.0 2.2 0.0 0.0 0.0 0.0 0.0 0.0 1.4
ID 97 2 0 0 0 0 0 0 100
ABS. 77 12 0 0 0 0 0 0 89 12 0 0 0 0 0 0 75
REL. 86.5 13.4 0.0 0.0 0.0 0.0 0.0 0.0100.0 13.5 0.0 0.0 0.0 0.0 0.0 0.0 22.9
ID 86 13 0 0 0 0 0 0 100
ABS. 57 21 12 2 0 0 0 0 92 35 14 2 0 0 0 0 191
REL 61.9 22.8 13.0 2.1 0.0 0.0 0.0 0.0100.0 38.0 15.2 2.2 0.0 0.0 0.0 0.024.11
ID 61 22 13 4 0 0 0 0 102
Year
ABS. 291 50 17 2 0 0 0 0 360 69 19 2 0 0 0 0 191
REL. 80.8 13.8 4.7 0.5 0.0 0.0 0.0 0.0100.0 19.2 5.3 0.6 0.0 0.0 0.0 0.024.11
ID 80 13 4 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