Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1325 - Plzen-Skvrnany
Code:CZPMPZPLS
Institution:Plzen City
Region:Plzensky
District:Plzen-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 15 15 23 104 85 52 95 40 23 42 69 54 45 37 26 31 35 36 30 16 21 28 43 13 16 6.84 5.48 3.84 14 63 48 36.61 104.47 31.00
2 34 34 48 38 47 52 21 17 10 8.06 8.45 ~ 26 20 22 22 40 40 17 13 20 15 7.35 13 21 10 13 15 ~ ~ ~ 23.50 52.37 27.00
3 33 26 20 30 38 31 15 24 23 18 26 46 39 20 30 27 27 43 25 26 19 12 10 11 16 17 19 32 37 24 19 25.28 46.19 31.00
4 25 26 22 20 16 14 16 22 19 24 23 26 21 14 28 22 32 28 22 18 19 25 17 18 20 14 8.83 17 12 18 ~ 20.19 31.52 30.00
5 13 16 19 14 14 19 17 18 13 19 10 14 25 13 12 16 13 12 12 20 20 20 14 20 11 14 17 15 16 14 9 15.41 25.42 31.00
6 8.48 10 18 17 21 14 12 19 19 12 12 18 12 10 18 9 18 20 19 14 16 10 11 15 14 16 11 9 8.53 15 ~ 14.28 21.13 30.00
7 18 17 15 11 10 13 13 21 16 15 15 16 11 9 11 16 20 10 10 11 12 13 17 11 15 17 14 18 19 15 29 14.74 29.18 31.00
8 15 16 17 15 15 16 12 22 19 13 10 6.80 11 12 16 15 13 18 19 17 18 18 22 16 16 17 24 19 32 21 14 16.61 32.20 31.00
9 14 15 18 23 21 23 15 17 20 15 24 15 30 10 19 19 15 13 33 54 18 16 13 13 23 24 18 20 25 43 ~ 20.83 53.66 30.00
10 41 46 34 27 14 16 16 17 21 23 21 22 30 35 42 38 17 24 14 22 44 56 14 38 34 7.70 6.90 11 31 33 28 26.50 55.90 31.00
11 46 11 21 22 21 23 28 17 7.45 25 25 41 56 33 50 44 20 28 21 39 23 22 31 21 20 47 36 25 28 16 ~ 28.30 56.22 30.00
12 36 46 34 43 20 20 18 18 22 23 28 25 29 20 22 87 54 26 40 42 43 41 28 16 15 14 22 23 14 11 11 28.76 86.70 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. 61 24 3 1 0 0 0 0 89 28 4 1 0 0 0 0 104
REL. 68.5 26.9 3.3 1.1 0.0 0.0 0.0 0.0 100.0 31.5 4.5 1.1 0.0 0.0 0.0 0.04.1
ID 68 26 3 2 0 0 0 0 101
ABS. 91 0 0 0 0 0 0 0 91 0 0 0 0 0 0 0 32
REL.100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17.4
ID 100 0 0 0 0 0 0 0 100
ABS. 90 2 0 0 0 0 0 0 92 2 0 0 0 0 0 0 54
REL. 97.8 2.1 0.0 0.0 0.0 0.0 0.0 0.0100.0 2.2 0.0 0.0 0.0 0.0 0.0 0.0 20.9
ID 97 2 0 0 0 0 0 0 100
ABS. 64 27 1 0 0 0 0 0 92 28 1 0 0 0 0 0 87
REL 69.5 29.3 1.0 0.0 0.0 0.0 0.0 0.0100.0 30.4 1.1 0.0 0.0 0.0 0.0 0.016.12
ID 69 29 1 0 0 0 0 0 100
Year
ABS. 306 53 4 1 0 0 0 0 364 58 5 1 0 0 0 0 104
REL. 84.0 14.5 1.0 0.2 0.0 0.0 0.0 0.0100.0 15.9 1.4 0.3 0.0 0.0 0.0 0.0 4.1
ID 84 14 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