Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1205 - Usti n.L.-Predlice
Code:CZULHSUPD
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 ~ ~ 10 ~ 17 11 25 16 42 58 46 15 ~ 22 11 12 16 38 28 30 25 21 30 12 35 109 22 24 19 ~ 8.00 27.00 109.00 26.00
2 11 8.00 8.00 14 16 24 22 24 8.00 8.00 16 23 33 34 24 34 14 21 17 16 19 13 16 99 15 18 ~ ~ ~ ~ ~ 21.35 99.00 26.00
3 ~ 16 8.00 8.00 21 8.00 13 8.00 8.00 8.00 18 24 15 23 22 20 13 20 55 16 9.00 40 31 24 34 18 49 36 58 39 37 23.30 58.00 30.00
4 86 ~ ~ 27 48 26 31 23 ~ ~ ~ 8.00 8.00 25 40 41 30 23 13 27 47 21 26 29 22 9.00 22 26 20 20 ~ 27.92 86.00 25.00
5 77 12 11 19 18 21 21 20 36 28 30 ~ ~ 37 52 14 10 18 19 29 19 36 26 45 28 43 39 53 23 44 45 30.10 77.00 29.00
6 53 47 61 11 14 64 12 30 39 78 19 22 19 26 39 31 37 45 32 26 20 34 21 24 13 24 14 24 19 21 ~ 30.63 78.00 30.00
7 47 28 27 31 25 26 19 14 21 32 8.00 18 12 59 ~ ~ ~ ~ ~ 86 43 15 18 14 18 16 34 14 10 18 21 25.92 86.00 26.00
8 13 26 10 34 35 32 27 38 25 28 35 32 49 14 37 26 28 35 50 46 32 24 67 50 15 19 37 23 8.00 11 21 29.90 67.00 31.00
9 24 8.00 25 20 18 12 22 ~ 8.00 26 17 28 23 23 20 19 47 25 42 57 22 ~ ~ 43 29 27 21 43 ~ 18 ~ 25.65 57.00 26.00
10 43 ~ ~ 8.00 59 8.00 17 19 16 26 14 14 13 23 22 35 28 36 107 48 68 122 72 23 31 77 37 26 55 26 27 37.93 122.00 29.00
11 96 40 35 36 12 22 26 25 43 26 31 35 52 30 26 49 25 28 36 13 12 33 ~ ~ ~ ~ ~ ~ ~ ~ ~ 33.23 96.00 22.00
12 ~ ~ 68 16 28 12 8.00 10 68 112 107 49 52 42 ~ ~ 107 75 52 16 24 23 ~ ~ ~ ~ ~ ~ ~ ~ ~ 48.28 112.00 18.00

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. 65 15 1 1 0 0 0 0 82 17 2 1 0 0 0 0 109
REL. 79.2 18.2 1.2 1.2 0.0 0.0 0.0 0.0 100.0 20.7 2.4 1.2 0.0 0.0 0.0 0.026.1
ID 79 18 1 2 0 0 0 0 101
ABS. 58 23 3 0 0 0 0 0 84 26 3 0 0 0 0 0 86
REL. 69.0 27.3 3.5 0.0 0.0 0.0 0.0 0.0 100.0 31.0 3.6 0.0 0.0 0.0 0.0 0.0 1.4
ID 69 27 3 0 0 0 0 0 100
ABS. 61 20 2 0 0 0 0 0 83 22 2 0 0 0 0 0 86
REL. 73.4 24.0 2.4 0.0 0.0 0.0 0.0 0.0100.0 26.5 2.4 0.0 0.0 0.0 0.0 0.0 20.7
ID 73 24 2 0 0 0 0 0 100
ABS. 38 19 7 5 0 0 0 0 69 31 12 5 0 0 0 0 122
REL 55.0 27.5 10.1 7.2 0.0 0.0 0.0 0.0100.0 44.9 17.4 7.2 0.0 0.0 0.0 0.022.10
ID 55 27 10 14 0 0 0 0 107
Year
ABS. 222 77 13 6 0 0 0 0 318 96 19 6 0 0 0 0 122
REL. 69.8 24.2 4.0 1.8 0.0 0.0 0.0 0.0100.0 30.2 6.0 1.9 0.0 0.0 0.0 0.022.10
ID 69 24 4 3 0 0 0 0 101

Note:

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