Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1300 - Pha8-Lyckovo nam.
Code:CZ08CMLYC
Institution:Czech Hydrometeorological Institute
Region:Prague
District:Praha 8
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 30 30 103 130 227 127 137 199 56 67 65 82 75 129 66 50 116 55 47 31 47 86 65 51 42 23 29 25 37 114 64 77.56 226.76 31.00
2 65 80 83 128 82 106 75 41 30 25 30 34 64 53 65 45 107 70 40 32 43 37 30 29 64 25 31 35 ~ ~ ~ 55.35 127.76 28.00
3 54 39 44 82 165 90 31 76 50 44 82 142 130 43 60 47 100 74 41 53 49 35 23 22 39 45 59 151 179 134 102 73.59 178.66 31.00
4 81 75 34 43 39 30 37 52 53 36 38 29 30 34 51 44 59 56 49 27 24 60 49 43 43 26 17 28 31 59 ~ 42.53 81.06 30.00
5 43 43 49 25 29 44 32 21 27 24 43 41 62 35 46 57 31 20 22 34 35 25 26 35 22 32 35 43 31 49 37 35.44 62.18 31.00
6 17 41 50 29 17 20 36 26 38 34 38 40 28 36 26 32 52 44 33 24 21 16 14 34 34 33 21 19 16 24 ~ 29.80 51.95 30.00
7 39 44 21 16 12 10 19 32 27 21 48 26 12 10 20 25 34 31 34 31 25 ~ 32 32 39 33 36 40 41 34 ~ 28.49 48.49 29.00

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. 17 39 14 15 4 1 0 0 90 73 34 20 5 1 0 0 227
REL. 18.8 43.3 15.5 16.6 4.4 1.1 0.0 0.0 100.0 81.1 37.8 22.2 5.6 1.1 0.0 0.05.1
ID 18 43 15 33 22 27 0 0 161
ABS. 41 48 2 0 0 0 0 0 91 50 2 0 0 0 0 0 81
REL. 45.0 52.7 2.1 0.0 0.0 0.0 0.0 0.0 100.0 54.9 2.2 0.0 0.0 0.0 0.0 0.0 1.4
ID 45 52 2 0 0 0 0 0 100
ABS. 19 10 0 0 0 0 0 0 292 10 0 0 0 0 0 0 48
REL. 65.5 34.4 0.0 0.0 0.0 0.0 0.0 0.0100.0 34.5 0.0 0.0 0.0 0.0 0.0 0.0 11.7
ID 65 34 0 0 0 0 0 0 100
ABS. 0 0 0 0 0 0 0 0 02 0 0 0 0 0 0 0 0
Year
ABS. 77 97 16 15 4 1 0 0 2101 133 36 20 5 1 0 0 227
REL. 36.6 46.1 7.6 7.1 1.9 0.4 0.0 0.0100.0 63.3 17.1 9.5 2.4 0.5 0.0 0.0 5.1
ID 36 46 7 14 9 11 0 0 126

Note:

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