Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NO-nitrogen monoxide
Station: 771 - Pha1-nam. Republiky
Code:CZ01CMREP
Institution:Czech Hydrometeorological Institute
Region:Hlavni mesto Praha
District:Praha 1
IHd: 150
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 33 24 28 30 41 90 96 33 26 25 29 30 15 23 37 18 18 16 20 15 14 21 18 48 44 27 28 22 9 13 13 29.17 96.25 31.00
2 44 20 22 24 15 32 17 10 12 18 28 17 9 16 18 12 19 19 24 12 30 30 35 26 18 43 27 18 33 ~ ~ 22.39 43.92 29.00
3 18 14 13 13 12 18 11 10 13 20 13 17 34 16 14 17 24 22 18 23 18 58 59 41 25 17 13 21 10 27 18 20.85 58.89 31.00
4 19 11 13 28 13 13 14 22 8.96 18 32 23 11 33 15 12 15 24 19 34 34 13 6.20 7.85 16 29 10 5.95 10 15 ~ 17.55 33.94 30.00
5 10 8.08 14 30 22 10 4.10 7.99 16 18 11 8.29 14 34 29 26 17 21 21 14 9 19 15 22 10 8.69 8.24 6.55 10 8.54 12 14.96 33.93 31.00
6 12 7.85 10 6.69 6.69 9 14 11 8.19 6.13 6.06 12 8.03 10 11 12 9 10 11 10 13 7.96 13 9 7.99 13 12 12 15 12 ~ 10.14 15.19 30.00
7 8.81 20 10 8.29 4.69 8.16 8.41 7.25 5.59 7.24 12 15 10 13 13 9 10 14 11 13 9 11 8.69 15 10 8.26 9 8.19 7.01 10 22 10.58 22.24 31.00
8 14 8.18 8.71 10 8.26 9 12 15 22 15 13 11 19 16 10 11 11 13 14 19 7.99 14 16 21 21 8.20 11 28 31 27 22 15.14 31.45 31.00
9 21 10 9 19 29 22 24 18 24 25 34 26 19 19 13 11 16 20 26 20 31 29 16 22 42 54 36 15 11 11 ~ 22.39 53.87 30.00
10 12 39 27 41 36 24 20 21 26 22 41 51 108 46 22 58 38 21 99 34 20 76 31 29 18 17 16 51 18 25 31 36.14 108.27 31.00
11 29 32 61 20 35 21 54 55 45 42 39 25 48 56 53 52 28 20 62 56 56 117 135 99 31 18 ~ ~ 73 31 ~ 49.85 135.18 28.00
12 31 34 56 64 28 20 29 80 102 46 33 24 14 18 15 11 26 41 67 91 28 44 33 32 27 55 19 37 71 28 31 39.80 102.33 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. 87 4 0 0 0 0 0 0 91 4 0 0 0 0 0 0 96
REL. 95.6 4.3 0.0 0.0 0.0 0.0 0.0 0.0 100.0 4.4 0.0 0.0 0.0 0.0 0.0 0.07.1
ID 95 4 0 0 0 0 0 0 100
ABS. 91 0 0 0 0 0 0 0 91 0 0 0 0 0 0 0 34
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 21.4
ID 100 0 0 0 0 0 0 0 100
ABS. 91 1 0 0 0 0 0 0 92 1 0 0 0 0 0 0 54
REL. 98.9 1.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 26.9
ID 98 1 0 0 0 0 0 0 100
ABS. 63 23 4 0 0 0 0 0 90 27 4 0 0 0 0 0 135
REL 70.0 25.5 4.4 0.0 0.0 0.0 0.0 0.0100.0 30.0 4.4 0.0 0.0 0.0 0.0 0.023.11
ID 70 25 4 0 0 0 0 0 100
Year
ABS. 332 28 4 0 0 0 0 0 364 32 4 0 0 0 0 0 135
REL. 91.2 7.6 1.0 0.0 0.0 0.0 0.0 0.0100.0 8.8 1.1 0.0 0.0 0.0 0.0 0.023.11
ID 91 7 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