Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1117 - Usti n.Orl.-Podmesti
Code:CZUOHSUOP
Institution:Public Health Service
Region:Vychodocesky
District:Usti nad Orlici
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 23 26 47 141 188 79 55 68 43 24 27 37 45 59 45 41 47 48 32 65 90 65 58 22 22 34 71 71 53 38 19 54.23 188.29 31.00
2 17 24 34 91 143 ~ ~ ~ ~ ~ 32 32 27 31 79 59 24 43 92 77 33 35 30 37 47 90 76 92 ~ ~ ~ 54.14 143.12 23.00
3 55 83 59 43 31 41 34 49 49 68 38 67 31 35 56 23 29 58 76 27 35 71 31 ~ ~ ~ ~ ~ ~ ~ ~ 47.36 82.56 23.00
4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 48 27 28 47 24 36 45 51 46 46 42 23 29 44 40 36 35 40 ~ 38.21 51.25 18.00
5 26 23 40 23 37 37 28 22 37 30 24 26 33 35 16 29 42 40 22 30 35 16 26 33 36 30 39 32 20 19 21 29.30 41.57 31.00
6 23 25 27 30 21 16 26 23 28 32 30 18 18 29 20 28 21 22 20 25 23 21 28 38 24 17 24 32 30 26 ~ 24.87 37.83 30.00
7 28 27 20 18 14 14 19 27 19 16 20 29 30 29 26 29 23 28 35 25 23 22 24 20 25 27 20 26 26 25 22 23.72 34.83 31.00
8 25 34 35 35 36 32 19 27 35 33 23 26 25 20 30 34 33 28 28 32 21 27 38 45 49 39 53 20 25 41 42 31.91 52.75 31.00
9 26 40 42 29 34 57 47 49 54 50 33 37 55 58 58 61 51 25 16 18 27 40 33 52 29 25 56 42 27 40 ~ 40.43 61.08 30.00
10 23 21 19 38 41 50 52 47 18 20 36 54 105 56 62 25 40 93 112 89 28 25 23 23 52 96 31 72 65 30 35 47.74 112.24 31.00
11 79 56 72 95 50 31 32 62 70 50 47 55 39 30 83 61 60 70 134 36 66 120 51 49 171 135 33 29 32 38 ~ 64.46 170.88 30.00
12 61 35 33 35 22 45 52 74 42 56 68 23 38 45 44 50 43 32 50 64 83 236 59 18 22 31 38 55 43 36 69 51.70 235.97 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- 33 34- 67 68- 100 101- 150 151- 200 201- 300 301- 400 over 400 33 67 100 150 200 300 400
ABS. 23 34 17 2 1 0 0 0 77 54 20 3 1 0 0 0 188
REL. 29.8 44.1 22.0 2.5 1.2 0.0 0.0 0.0 100.0 70.1 26.0 3.9 1.3 0.0 0.0 0.05.1
ID 29 44 22 5 6 0 0 0 107
ABS. 55 24 0 0 0 0 0 0 79 24 0 0 0 0 0 0 51
REL. 69.6 30.3 0.0 0.0 0.0 0.0 0.0 0.0 100.0 30.4 0.0 0.0 0.0 0.0 0.0 0.0 20.4
ID 69 30 0 0 0 0 0 0 100
ABS. 59 33 0 0 0 0 0 0 92 33 0 0 0 0 0 0 61
REL. 64.1 35.8 0.0 0.0 0.0 0.0 0.0 0.0100.0 35.9 0.0 0.0 0.0 0.0 0.0 0.0 16.9
ID 64 35 0 0 0 0 0 0 100
ABS. 25 46 14 5 1 1 0 0 92 67 21 7 2 1 0 0 236
REL 27.1 50.0 15.2 5.4 1.0 1.0 0.0 0.0100.0 72.8 22.8 7.6 2.2 1.1 0.0 0.022.12
ID 27 50 15 10 5 27 0 0 135
Year
ABS. 162 137 31 7 2 1 0 0 340 178 41 10 3 1 0 0 236
REL. 47.6 40.2 9.1 2.0 0.5 0.2 0.0 0.0100.0 52.4 12.1 2.9 0.9 0.3 0.0 0.022.12
ID 47 40 9 4 2 7 0 0 111

Note:

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