Detailed overview of ambient air pollution valuis from individual stations


Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 441 - Pha6-Alzirska
Code:CZ06HSALZ
Institution:Public Health Service
Region:Prague
District:Praha 6
IHd: 100
Measure method:triethanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ ~ ~ ~ ~ ~ ~ 38 38 39 ~ ~ 56 38 12 16 13 ~ ~ 12 12 26 17 28 ~ ~ 15 21 42 25 26.35 56.00 17.00
2 28 ~ ~ 27 29 31 20 23 ~ ~ 27 29 31 28 30 ~ ~ 28 27 19 17 14 ~ ~ ~ ~ ~ ~ ~ ~ ~ 25.50 31.00 16.00
3 ~ ~ ~ 15 13 45 36 65 ~ ~ 38 38 101 77 24 ~ ~ 24 35 17 25 39 ~ ~ 13 29 37 15 ~ ~ ~ 36.11 101.00 19.00
4 ~ 41 27 40 19 ~ ~ 30 29 42 28 26 ~ ~ 30 36 45 57 70 ~ ~ 66 56 37 22 19 ~ ~ 20 18 ~ 36.10 70.00 21.00
5 ~ 10 13 ~ ~ 12 54 ~ 19 ~ ~ ~ 39 27 14 11 16 ~ ~ 22 16 21 28 28 ~ ~ 31 42 26 35 25 24.45 54.00 20.00
6 ~ ~ 50 31 8.00 13 15 ~ ~ 20 20 17 15 28 ~ ~ 30 21 23 13 29 ~ ~ 21 33 22 15 ~ ~ ~ ~ 22.32 50.00 19.00
7 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
8 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
9 ~ ~ 12 29 33 36 ~ ~ 42 ~ 46 32 ~ ~ ~ 37 29 22 51 41 ~ ~ 71 100 75 74 100 ~ ~ 75 ~ 50.28 100.00 18.00
10 128 75 64 26 ~ ~ 27 25 59 41 34 ~ ~ 64 66 119 39 32 ~ ~ 117 147 10 15 27 ~ ~ ~ ~ ~ 47 58.10 147.00 20.00
11 37 ~ ~ 40 30 39 40 ~ ~ ~ 59 41 18 33 41 ~ ~ 127 30 46 63 38 ~ ~ 77 81 71 36 103 ~ ~ 52.50 127.00 20.00
12 ~ 59 88 45 45 64 ~ ~ 52 18 21 26 43 ~ ~ 35 17 38 32 29 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 40.80 88.00 15.00

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. 36 14 1 1 0 0 0 0 521 16 2 1 0 0 0 0 101
REL. 69.2 26.9 1.9 1.9 0.0 0.0 0.0 0.0 100.0 30.8 3.8 1.9 0.0 0.0 0.0 0.013.3
ID 69 26 1 3 0 0 0 0 101
ABS. 45 14 1 0 0 0 0 0 60 15 1 0 0 0 0 0 70
REL. 75.0 23.3 1.6 0.0 0.0 0.0 0.0 0.0 100.0 25.0 1.7 0.0 0.0 0.0 0.0 0.0 19.4
ID 75 23 1 0 0 0 0 0 100
ABS. 6 6 6 0 0 0 0 0 182 12 6 0 0 0 0 0 100
REL. 33.3 33.3 33.3 0.0 0.0 0.0 0.0 0.0100.0 66.7 33.3 0.0 0.0 0.0 0.0 0.0 24.9
ID 33 33 33 0 0 0 0 0 100
ABS. 17 27 5 6 0 0 0 0 551 38 11 6 0 0 0 0 147
REL 30.9 49.0 9.0 10.9 0.0 0.0 0.0 0.0100.0 69.1 20.0 10.9 0.0 0.0 0.0 0.022.10
ID 30 49 9 21 0 0 0 0 110
Year
ABS. 104 61 13 7 0 0 0 0 1851 81 20 7 0 0 0 0 147
REL. 56.2 32.9 7.0 3.7 0.0 0.0 0.0 0.0100.0 43.8 10.8 3.8 0.0 0.0 0.0 0.022.10
ID 56 32 7 7 0 0 0 0 103

Note:

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