Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 860 - Pha4-OHS Antala Staska
Code:CZ04HSANT
Institution:Public Health Service
Region:Prague
District:Praha 4
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ 65 51 58 ~ ~ ~ 81 15 29 46 41 ~ ~ 22 30 60 31 22 ~ ~ 24 24 17 20 ~ ~ ~ 76 54 22 39.40 81.00 20.00
2 44 45 ~ ~ 61 65 92 176 87 ~ ~ 53 46 30 58 20 ~ ~ 31 56 140 213 75 ~ ~ 64 42 38 ~ ~ ~ 71.80 213.00 20.00
3 46 36 ~ ~ 77 58 59 63 46 ~ ~ 66 56 53 109 86 ~ ~ 113 73 28 62 102 ~ ~ 57 ~ 29 38 76 ~ 63.48 113.00 21.00
4 ~ 22 33 42 19 29 ~ ~ 19 ~ 68 30 21 ~ ~ ~ 46 31 32 28 ~ ~ 8.00 7.00 11 7.00 10 ~ ~ 8.00 ~ 24.79 68.00 19.00
5 ~ 7.00 10 8.00 ~ ~ 32 ~ 30 29 20 ~ ~ 18 16 11 13 13 ~ ~ 63 93 87 99 73 ~ ~ 17 13 18 34 33.52 99.00 21.00
6 31 ~ ~ 12 ~ ~ 24 8.00 ~ ~ 70 50 61 56 22 ~ ~ 21 19 11 13 14 ~ ~ 54 35 35 84 17 ~ ~ 33.53 84.00 19.00
7 ~ 84 130 12 ~ ~ ~ ~ 35 17 37 18 13 ~ ~ ~ ~ 23 12 14 ~ ~ 10 47 27 ~ 33 ~ ~ 37 19 33.41 130.00 17.00
8 23 34 50 ~ ~ 43 35 20 18 13 ~ ~ 25 20 29 35 24 ~ ~ 26 25 11 88 27 ~ ~ 12 ~ 67 47 ~ 32.00 88.00 21.00
9 ~ ~ 48 43 60 ~ 32 ~ ~ 33 81 30 21 17 ~ ~ 89 62 60 37 36 ~ ~ 35 24 46 28 ~ ~ ~ ~ 43.44 89.00 18.00
10 24 53 44 64 78 ~ ~ 48 48 42 53 48 ~ ~ 69 105 77 78 ~ ~ ~ 61 83 36 ~ 49 ~ ~ 49 51 54 57.81 105.00 21.00
11 48 63 ~ ~ 51 48 71 55 49 ~ ~ 68 72 29 89 19 ~ ~ 56 70 61 37 ~ ~ ~ 63 138 72 90 69 ~ 62.76 138.00 21.00
12 ~ ~ 74 68 70 65 ~ ~ ~ 119 78 68 64 19 ~ ~ 40 43 74 58 27 ~ ~ ~ ~ ~ 33 102 ~ ~ 100 64.82 119.00 17.00

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. 16 30 9 4 1 1 0 0 61 45 15 6 2 1 0 0 213
REL. 26.2 49.1 14.7 6.5 1.6 1.6 0.0 0.0 100.0 73.8 24.6 9.8 3.3 1.6 0.0 0.022.2
ID 26 49 14 13 8 40 0 0 152
ABS. 42 10 7 0 0 0 0 0 591 17 7 0 0 0 0 0 99
REL. 71.1 16.9 11.8 0.0 0.0 0.0 0.0 0.0 100.0 28.8 11.9 0.0 0.0 0.0 0.0 0.0 24.5
ID 71 16 11 0 0 0 0 0 100
ABS. 31 19 5 1 0 0 0 0 561 25 6 1 0 0 0 0 130
REL. 55.3 33.9 8.9 1.7 0.0 0.0 0.0 0.0100.0 44.6 10.7 1.8 0.0 0.0 0.0 0.0 3.7
ID 55 33 8 3 0 0 0 0 101
ABS. 6 29 20 4 0 0 0 0 591 53 24 4 0 0 0 0 138
REL 10.1 49.1 33.8 6.7 0.0 0.0 0.0 0.0100.0 89.8 40.7 6.8 0.0 0.0 0.0 0.027.11
ID 10 49 33 13 0 0 0 0 106
Year
ABS. 95 88 41 9 1 1 0 0 2351 140 52 11 2 1 0 0 213
REL. 40.4 37.4 17.4 3.8 0.4 0.4 0.0 0.0100.0 59.6 22.1 4.7 0.9 0.4 0.0 0.0 22.2
ID 40 37 17 7 2 10 0 0 115

Note:

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