Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NO-nitrogen monoxide
Station: 771 - Pha1-nam. Republiky
Code:CZ01CMREP
Institution:Czech Hydrometeorological Institute
Region:Prague
District:Praha 1
IHd: 150
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 11 14 42 61 85 46 71 98 23 28 25 37 33 71 26 22 45 25 16 9 14 25 21 20 18 8.97 7.91 8.21 13 39 25 31.86 97.59 31.00
2 33 60 46 38 30 70 29 15 10 7.54 8.73 12 27 33 40 24 47 24 14 10 18 14 11 11 26 9 13 14 ~ ~ ~ 24.87 70.28 28.00
3 26 17 14 52 66 31 13 26 21 15 40 90 64 18 31 24 67 37 12 22 22 16 10 11 16 15 26 48 105 57 32 33.65 104.88 31.00
4 30 28 12 17 15 12 12 18 16 13 17 13 22 18 18 19 26 20 17 13 8.21 21 16 20 20 13 12 14 11 32 ~ 17.39 31.83 30.00
5 14 15 16 9 13 16 10 5.40 8.66 11 18 18 35 13 19 25 14 11 8.99 13 14 9 10 16 11 17 18 21 14 17 15 14.72 35.37 31.00
6 12 15 20 8.72 6.17 13 21 15 20 16 15 13 14 19 12 14 20 12 12 10 12 7.32 8.14 19 14 13 12 12 10 9.00 ~ 13.47 20.72 30.00
7 16 21 12 10 7.16 8.47 10 18 10 8.44 20 17 7.16 7.47 10 14 15 19 18 11 6.66 12 8.77 10 10 11 10 7.63 7.74 ~ 11 11.79 20.64 30.00
8 18 33 15 10 13 14 12 14 29 6.35 8.76 13 11 11 14 14 14 17 14 11 10 19 23 17 20 16 15 26 24 27 17 16.29 32.59 31.00
9 30 28 30 33 25 26 27 19 19 25 20 27 31 15 13 20 23 28 37 57 40 19 21 22 26 39 16 38 42 73 ~ 28.94 73.36 30.00
10 55 44 38 31 13 13 22 27 23 30 24 18 34 46 39 76 28 28 19 31 60 57 14 30 19 8.86 6.80 12 25 59 46 31.55 75.69 31.00
11 49 18 16 49 22 29 57 27 20 27 37 51 52 75 110 104 31 70 34 35 27 33 33 41 102 82 49 24 43 37 ~ 46.13 110.14 30.00
12 42 47 61 66 41 40 34 29 50 60 72 45 47 37 40 79 56 30 107 126 ~ ~ 49 29 26 ~ ~ 56 39 31 27 50.57 126.40 27.00

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. 76 13 1 0 0 0 0 0 90 14 1 0 0 0 0 0 105
REL. 84.4 14.4 1.1 0.0 0.0 0.0 0.0 0.0 100.0 15.6 1.1 0.0 0.0 0.0 0.0 0.029.3
ID 84 14 1 0 0 0 0 0 100
ABS. 91 0 0 0 0 0 0 0 91 0 0 0 0 0 0 0 35
REL.100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13.5
ID 100 0 0 0 0 0 0 0 100
ABS. 89 2 0 0 0 0 0 0 91 2 0 0 0 0 0 0 73
REL. 97.8 2.1 0.0 0.0 0.0 0.0 0.0 0.0100.0 2.2 0.0 0.0 0.0 0.0 0.0 0.0 30.9
ID 97 2 0 0 0 0 0 0 100
ABS. 65 18 5 0 0 0 0 0 88 23 5 0 0 0 0 0 126
REL 73.8 20.4 5.6 0.0 0.0 0.0 0.0 0.0100.0 26.1 5.7 0.0 0.0 0.0 0.0 0.020.12
ID 73 20 5 0 0 0 0 0 100
Year
ABS. 321 33 6 0 0 0 0 0 360 39 6 0 0 0 0 0 126
REL. 89.1 9.1 1.6 0.0 0.0 0.0 0.0 0.0100.0 10.8 1.7 0.0 0.0 0.0 0.0 0.020.12
ID 89 9 1 0 0 0 0 0 100

Note:

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