Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 610 - Pha10-Uhrineves
Code:CZ10HSUHR
Institution:Public Health Service
Region:Prague
District:Praha 10
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 26 41 59 36 56 ~ ~ 242 141 81 ~ 137 ~ ~ ~ ~ 100 36 40 ~ ~ 17 18 23 23 15 ~ ~ 40 77 118 66.30 242.00 20.00
2 58 104 ~ ~ ~ ~ 43 73 55 ~ ~ 28 36 77 33 179 ~ ~ 75 95 65 82 42 ~ ~ 30 63 27 ~ ~ ~ 64.72 179.00 18.00
3 32 39 ~ ~ 38 53 48 53 86 ~ ~ 10 45 31 131 123 ~ ~ 32 72 93 110 68 ~ ~ ~ 75 40 51 62 ~ 61.52 131.00 21.00
4 ~ 25 33 29 35 29 ~ ~ 12 13 14 12 9.00 ~ ~ ~ 12 8.00 13 14 ~ ~ 13 13 11 12 ~ ~ ~ 13 ~ 16.84 35.00 19.00
5 ~ 42 33 50 ~ ~ ~ ~ 57 50 44 ~ ~ 27 31 24 23 31 ~ ~ 63 42 147 ~ 64 ~ ~ 46 18 16 16 43.37 147.00 19.00
6 17 ~ ~ 13 13 7.00 13 17 ~ ~ 9.00 10 17 11 9.00 ~ ~ 49 19 16 12 20 ~ ~ 52 65 38 49 108 ~ ~ 26.86 108.00 21.00
7 ~ 55 51 ~ ~ ~ ~ ~ 19 10 15 12 7.00 ~ ~ 51 55 ~ 52 ~ ~ ~ 64 77 55 52 60 ~ ~ 42 15 40.71 77.00 17.00
8 36 27 22 ~ ~ 17 16 11 11 11 ~ ~ 16 22 19 22 ~ ~ ~ 20 ~ 43 ~ ~ ~ ~ ~ ~ ~ ~ ~ 20.93 43.00 14.00
9 ~ ~ 21 18 13 24 20 ~ ~ 23 20 ~ 15 30 ~ ~ ~ 11 17 10 10 ~ ~ 12 14 12 14 ~ ~ ~ ~ 16.71 30.00 17.00
10 ~ 12 16 13 20 ~ ~ 14 ~ 16 20 21 ~ ~ 28 33 ~ 23 25 ~ ~ 44 32 27 41 12 ~ ~ ~ 16 14 22.47 44.00 19.00
11 28 23 ~ ~ 27 21 31 26 22 ~ ~ 74 147 131 116 134 ~ ~ 133 97 84 67 66 ~ ~ 135 164 242 123 102 ~ 90.59 242.00 22.00
12 ~ ~ 40 147 76 106 88 ~ ~ 106 109 56 32 ~ ~ ~ 76 61 ~ 49 76 ~ ~ 140 107 ~ ~ ~ ~ ~ 99 85.50 147.00 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. 14 23 13 7 1 1 0 0 591 45 22 9 2 1 0 0 242
REL. 23.7 38.9 22.0 11.8 1.6 1.6 0.0 0.0 100.0 76.3 37.3 15.3 3.4 1.7 0.0 0.08.1
ID 23 38 22 23 8 42 0 0 159
ABS. 42 15 0 2 0 0 0 0 591 17 2 2 0 0 0 0 147
REL. 71.1 25.4 0.0 3.3 0.0 0.0 0.0 0.0 100.0 28.8 3.4 3.4 0.0 0.0 0.0 0.0 23.5
ID 71 25 0 6 0 0 0 0 103
ABS. 35 12 1 0 0 0 0 0 481 13 1 0 0 0 0 0 77
REL. 72.9 25.0 2.0 0.0 0.0 0.0 0.0 0.0100.0 27.1 2.1 0.0 0.0 0.0 0.0 0.0 24.7
ID 72 25 2 0 0 0 0 0 100
ABS. 25 7 9 14 1 1 0 0 571 32 25 16 2 1 0 0 242
REL 43.8 12.2 15.7 24.5 1.7 1.7 0.0 0.0100.0 56.1 43.9 28.1 3.5 1.8 0.0 0.028.11
ID 43 12 15 49 8 43 0 0 173
Year
ABS. 116 57 23 23 2 2 0 0 2231 107 50 27 4 2 0 0 242
REL. 52.0 25.5 10.3 10.3 0.8 0.8 0.0 0.0100.0 48.0 22.4 12.1 1.8 0.9 0.0 0.028.11
ID 52 25 10 20 4 22 0 0 135

Note:

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