Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NO-nitrogen monoxide
Station: 775 - Pha5-Mlynarka
Code:CZ05CMMLY
Institution:Czech Hydrometeorological Institute
Region:Prague
District:Praha 5
IHd: 150
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 24 18 93 110 87 8.04 45 55 46 76 32 74 78 46 169 100 17 60 38 21 17 20 22 36 68 66 13 77 98 38 27 54.12 168.96 31.00
2 20 24 26 44 7.17 51 68 70 26 56 104 133 36 80 217 172 23 12 18 11 8.05 13 16 21 39 30 41 35 ~ ~ ~ 50.12 217.23 28.00
3 70 47 20 38 22 25 20 26 69 13 39 11 15 7.21 52 44 20 36 6.23 12 32 53 47 21 17 16 13 18 15 54 42 29.65 70.25 31.00
4 59 52 49 25 14 16 6.34 13 47 25 19 14 12 6.71 3.68 23 19 11 33 14 7.15 11 41 58 12 11 24 12 34 15 ~ 22.87 58.74 30.00
5 18 7.80 12 14 9 8.81 15 13 21 32 7.90 6.30 24 9 8.07 8.48 6.81 10 10 17 12 17 23 30 10 7.45 6.11 18 10 12 14 13.51 32.43 31.00
6 12 3.17 4.40 12 36 22 11 10 4.88 10 11 18 16 19 14 3.34 6.71 14 15 16 9 9 5.81 16 25 19 11 10 15 4.92 ~ 12.75 36.28 30.00
7 7.46 14 8.32 8.54 7.14 2.95 1.74 3.42 9 21 6.53 10 15 9 6.41 15 19 11 22 16 11 20 16 20 12 22 15 12 13 28 11 12.70 28.00 31.00
8 19 15 6.41 4.14 4.38 14 14 12 19 10 11 14 29 27 21 10 6.75 8.14 19 15 14 13 26 25 16 20 13 10 34 32 18 16.10 34.44 31.00
9 4.75 14 18 10 18 20 10 4.26 3.91 7.93 10 14 12 16 8.83 13 21 45 50 19 15 36 14 22 28 35 26 29 42 39 ~ 20.24 50.33 30.00
10 16 52 58 38 58 34 41 57 69 56 26 87 93 98 98 91 35 72 125 52 24 34 53 65 55 32 27 21 14 24 51 53.33 125.23 31.00
11 14 30 49 53 66 23 13 9 27 83 104 35 30 43 92 73 37 20 ~ 89 24 10 15 27 88 180 96 18 19 41 ~ 48.53 180.15 29.00
12 13 14 30 46 96 55 29 14 83 51 56 25 23 26 41 18 34 28 17 16 6.45 13 14 3.46 2.56 4.88 9 5.07 15 4.59 13 25.96 96.24 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. 62 21 4 3 0 0 0 0 90 28 7 3 0 0 0 0 217
REL. 68.8 23.3 4.4 3.3 0.0 0.0 0.0 0.0 100.0 31.1 7.8 3.3 0.0 0.0 0.0 0.015.2
ID 68 23 4 6 0 0 0 0 103
ABS. 88 3 0 0 0 0 0 0 91 3 0 0 0 0 0 0 59
REL. 96.7 3.2 0.0 0.0 0.0 0.0 0.0 0.0 100.0 3.3 0.0 0.0 0.0 0.0 0.0 0.0 1.4
ID 96 3 0 0 0 0 0 0 100
ABS. 91 1 0 0 0 0 0 0 92 1 0 0 0 0 0 0 50
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 19.9
ID 98 1 0 0 0 0 0 0 100
ABS. 58 30 2 1 0 0 0 0 91 33 3 1 0 0 0 0 180
REL 63.7 32.9 2.1 1.0 0.0 0.0 0.0 0.0100.0 36.3 3.3 1.1 0.0 0.0 0.0 0.026.11
ID 63 32 2 2 0 0 0 0 101
Year
ABS. 299 55 6 4 0 0 0 0 364 65 10 4 0 0 0 0 217
REL. 82.1 15.1 1.6 1.0 0.0 0.0 0.0 0.0100.0 17.9 2.7 1.1 0.0 0.0 0.0 0.0 15.2
ID 82 15 1 2 0 0 0 0 101

Note:

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