Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 571 - Trutnov-OHS
Code:CZTUHSTRO
Institution:Public Health Service
Region:Vychodocesky
District:Trutnov
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 16 23 36 50 79 90 63 67 31 19 34 29 54 43 39 31 26 114 38 41 47 48 54 30 71 36 56 47 22 18 27 44.48 114.00 31.00
2 51 89 48 57 15 12 17 28 36 53 21 16 12 19 33 53 18 27 47 35 25 24 29 30 21 46 41 43 ~ ~ ~ 33.79 89.00 28.00
3 35 32 36 41 46 24 19 33 53 87 26 42 16 25 ~ ~ ~ ~ 52 24 20 48 30 29 35 46 20 23 30 29 43 34.96 87.00 27.00
4 28 47 31 29 29 43 39 59 38 33 21 25 ~ 22 33 24 15 11 33 37 39 33 51 22 13 25 39 43 26 37 ~ 31.90 59.00 29.00
5 25 9.00 26 14 12 41 32 26 15 47 17 32 25 40 15 14 29 43 32 35 42 24 19 42 41 28 36 47 22 22 25 28.29 47.00 31.00
6 21 26 25 42 22 18 28 36 29 38 27 25 17 ~ ~ ~ ~ 37 23 18 37 30 21 45 26 21 23 34 25 31 ~ 27.88 45.00 26.00
7 27 29 28 23 14 15 21 23 19 14 15 34 32 28 27 27 25 20 39 37 33 29 36 26 19 32 20 24 24 30 21 25.52 39.00 31.00
8 17 41 42 52 67 36 30 29 17 63 45 29 38 46 27 15 37 40 44 26 44 24 20 59 52 46 58 32 22 17 52 37.65 67.00 31.00
9 33 26 29 35 36 ~ ~ ~ ~ 58 25 26 45 55 57 54 40 36 20 22 33 42 62 44 47 22 28 67 32 43 ~ 39.12 67.00 26.00
10 23 27 21 36 51 37 34 70 23 15 44 35 61 31 49 30 18 35 ~ ~ ~ 44 29 27 ~ 35 31 33 70 44 36 36.63 70.00 27.00
11 61 63 52 42 63 40 31 63 43 36 40 59 35 22 ~ ~ ~ ~ 50 26 29 65 63 ~ ~ 94 41 41 39 49 ~ 47.79 94.00 24.00
12 57 42 57 22 20 42 49 41 53 64 43 15 25 24 23 35 28 19 17 33 105 149 50 22 18 27 46 30 55 47 37 41.77 149.00 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. 42 37 6 1 0 0 0 0 86 44 7 1 0 0 0 0 114
REL. 48.8 43.0 6.9 1.1 0.0 0.0 0.0 0.0 100.0 51.2 8.1 1.2 0.0 0.0 0.0 0.018.1
ID 48 43 6 2 0 0 0 0 101
ABS. 58 28 0 0 0 0 0 0 86 28 0 0 0 0 0 0 59
REL. 67.4 32.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 32.6 0.0 0.0 0.0 0.0 0.0 0.0 8.4
ID 67 32 0 0 0 0 0 0 100
ABS. 51 35 2 0 0 0 0 0 88 37 2 0 0 0 0 0 67
REL. 57.9 39.7 2.2 0.0 0.0 0.0 0.0 0.0100.0 42.0 2.3 0.0 0.0 0.0 0.0 0.0 5.8
ID 57 39 2 0 0 0 0 0 100
ABS. 30 47 3 2 0 0 0 0 82 52 5 2 0 0 0 0 149
REL 36.5 57.3 3.6 2.4 0.0 0.0 0.0 0.0100.0 63.4 6.1 2.4 0.0 0.0 0.0 0.022.12
ID 36 57 3 4 0 0 0 0 102
Year
ABS. 181 147 11 3 0 0 0 0 342 161 14 3 0 0 0 0 149
REL. 52.9 42.9 3.2 0.8 0.0 0.0 0.0 0.0100.0 47.1 4.1 0.9 0.0 0.0 0.0 0.022.12
ID 52 42 3 1 0 0 0 0 100

Note:

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