Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 545 - Usti n.L.-Kras.Brezno
Code:CZULHSUKB
Institution:Public Health Service
Region:Severocesky
District:Usti nad Labem
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ ~ 99 88 ~ 59 72 21 13 ~ 28 ~ 50 29 34 25 42 8.00 35 48 ~ 71 ~ 79 50 54 47 12 14 ~ 44.45 99.00 22.00
2 43 146 56 32 28 32 32 45 65 95 24 30 24 26 105 54 14 40 116 79 74 26 29 39 57 84 92 75 ~ ~ ~ 55.79 146.00 28.00
3 23 86 26 46 61 8.00 19 ~ 38 38 8.00 35 25 37 16 8.00 26 46 8.00 32 35 16 34 44 40 141 77 49 22 30 14 36.27 141.00 30.00
4 27 ~ ~ ~ ~ 15 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 21.00 27.00 2.00
5 ~ ~ 15 35 20 18 20 30 20 29 20 33 39 24 8.00 11 20 8.00 19 22 21 19 25 21 24 8.00 ~ 22 9.00 20 15 20.54 39.00 28.00
6 14 27 24 26 13 ~ 24 41 16 28 12 19 19 21 17 8.00 26 8.00 8.00 18 8.00 10 ~ 33 21 26 18 29 12 12 ~ 19.21 41.00 28.00
7 33 ~ ~ ~ ~ ~ 20 42 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 14 24 ~ ~ ~ ~ 26.60 42.00 5.00
8 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 13 8.00 8.00 ~ ~ 12 14 14 14 ~ 48 8.00 17 34 28 19 20 33 69 22.44 69.00 16.00
9 25 21 24 40 23 59 19 10 15 14 8.00 11 13 20 43 69 76 24 20 14 30 18 27 35 36 30 40 14 18 18 ~ 27.13 76.00 30.00
10 8.00 25 31 22 8.00 31 9.00 ~ ~ ~ 104 13 11 26 20 19 8.00 28 33 22 8.00 23 19 25 21 ~ 22 ~ ~ ~ ~ 23.30 104.00 23.00
11 ~ ~ 29 14 76 95 111 21 8.00 25 ~ 32 34 33 21 31 74 48 36 33 31 40 31 74 92 73 57 60 18 36 ~ 45.67 111.00 27.00
12 26 33 19 31 38 82 46 53 54 46 40 20 57 50 18 ~ 34 33 28 10 22 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 37.00 82.00 20.00

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. 34 29 13 4 0 0 0 0 80 46 17 4 0 0 0 0 146
REL. 42.5 36.2 16.2 5.0 0.0 0.0 0.0 0.0 100.0 57.5 21.2 5.0 0.0 0.0 0.0 0.02.2
ID 42 36 16 10 0 0 0 0 105
ABS. 55 3 0 0 0 0 0 0 581 3 0 0 0 0 0 0 41
REL. 94.8 5.1 0.0 0.0 0.0 0.0 0.0 0.0 100.0 5.2 0.0 0.0 0.0 0.0 0.0 0.0 8.6
ID 94 5 0 0 0 0 0 0 100
ABS. 39 9 3 0 0 0 0 0 511 12 3 0 0 0 0 0 76
REL. 76.4 17.6 5.8 0.0 0.0 0.0 0.0 0.0100.0 23.5 5.9 0.0 0.0 0.0 0.0 0.0 17.9
ID 76 17 5 0 0 0 0 0 100
ABS. 45 16 7 2 0 0 0 0 70 25 9 2 0 0 0 0 111
REL 64.2 22.8 10.0 2.8 0.0 0.0 0.0 0.0100.0 35.7 12.9 2.9 0.0 0.0 0.0 0.0 7.11
ID 64 22 10 5 0 0 0 0 102
Year
ABS. 173 57 23 6 0 0 0 0 259 86 29 6 0 0 0 0 146
REL. 66.7 22.0 8.8 2.3 0.0 0.0 0.0 0.0100.0 33.2 11.2 2.3 0.0 0.0 0.0 0.0 2.2
ID 66 22 8 4 0 0 0 0 102

Note:

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