Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 441 - Pha6-Alzirska
Code:CZ06HSALZ
Institution:Public Health Service
Region:Hlavni mesto Praha
District:Praha 6
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ 15 22 ~ ~ ~ ~ ~ ~ ~ 17 14 11 ~ ~ 12 7.00 11 18 13 ~ ~ 9.00 12 9.00 30 4.00 ~ ~ ~ 13.60 30.00 15.00
2 8.00 8.00 8.00 8.00 ~ ~ 10 6.00 6.00 7.00 8.00 ~ ~ 8.00 28 11 20 5.00 ~ ~ 8.00 7.00 86 72 97 ~ ~ 44 63 ~ ~ 24.67 97.00 21.00
3 20 18 10 ~ ~ 15 18 11 16 42 ~ ~ 57 32 38 34 37 ~ ~ 56 61 125 106 80 ~ ~ 34 45 59 59 26 43.43 125.00 23.00
4 ~ ~ 47 56 ~ ~ ~ ~ ~ 86 40 11 ~ ~ ~ ~ 10 ~ 28 35 ~ ~ ~ ~ 133 82 57 41 ~ ~ ~ 52.17 133.00 12.00
5 ~ 55 12 14 44 ~ ~ ~ 42 37 30 52 ~ ~ 40 46 18 29 17 ~ ~ 16 23 10 17 19 ~ ~ 13 30 60 29.71 60.00 21.00
6 35 25 ~ ~ 36 36 ~ 24 20 ~ ~ 19 13 25 8.00 15 ~ ~ 47 67 66 32 25 ~ ~ 17 44 ~ ~ ~ ~ 30.78 67.00 18.00
7 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
8 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
9 59 ~ ~ 30 51 44 54 43 ~ ~ 90 110 41 50 39 ~ ~ 42 39 25 20 20 ~ ~ 72 85 86 ~ ~ ~ ~ 52.63 110.00 19.00
10 ~ 70 53 66 106 45 ~ ~ 44 43 68 80 79 ~ ~ 96 69 50 48 41 ~ ~ 19 19 30 40 24 ~ ~ 60 47 54.41 106.00 22.00
11 46 71 92 ~ ~ 60 108 115 69 44 ~ ~ 114 107 72 63 ~ ~ ~ 70 63 293 314 91 ~ ~ 59 51 127 62 ~ 99.57 314.00 21.00
12 111 ~ ~ 87 63 57 31 131 ~ ~ 51 37 104 83 144 ~ ~ 44 57 208 89 117 ~ ~ ~ ~ ~ ~ ~ ~ ~ 88.38 208.00 16.00

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. 40 13 4 2 0 0 0 0 591 19 6 2 0 0 0 0 125
REL. 67.7 22.0 6.7 3.3 0.0 0.0 0.0 0.0 100.0 32.2 10.2 3.4 0.0 0.0 0.0 0.022.3
ID 67 22 6 6 0 0 0 0 103
ABS. 27 20 3 1 0 0 0 0 511 24 4 1 0 0 0 0 133
REL. 52.9 39.2 5.8 1.9 0.0 0.0 0.0 0.0 100.0 47.1 7.8 2.0 0.0 0.0 0.0 0.0 25.4
ID 52 39 5 3 0 0 0 0 101
ABS. 4 10 4 1 0 0 0 0 192 15 5 1 0 0 0 0 110
REL. 21.0 52.6 21.0 5.2 0.0 0.0 0.0 0.0100.0 78.9 26.3 5.3 0.0 0.0 0.0 0.0 12.9
ID 21 52 21 10 0 0 0 0 105
ABS. 5 25 15 11 0 2 1 0 591 54 29 14 3 3 1 0 314
REL 8.4 42.3 25.4 18.6 0.0 3.3 1.6 0.0100.0 91.5 49.2 23.7 5.1 5.1 1.7 0.023.11
ID 8 42 25 37 0 84 211 0 410
Year
ABS. 76 68 26 15 0 2 1 0 1881 112 44 18 3 3 1 0 314
REL. 40.4 36.1 13.8 7.9 0.0 1.0 0.5 0.0100.0 59.6 23.4 9.6 1.6 1.6 0.5 0.023.11
ID 40 36 13 15 0 26 66 0 199

Note:

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