Detailed overview of ambient air pollution valuis from individual stations

1325 - Plzen-Skvrnany

Year: 1997
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1325 - Plzen-Skvrnany
Code:CZPMSIPLS
Institution:Infrastructure Management of the Plzeň
Region:Zapadocesky
District:Plzen-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 64 92 49 51 56 50 64 53 36 44 22 23 93 156 194 178 154 111 58 82 59 34 82 117 66 31 70 43 45 17 22 71.56 194.11 31.00
2 28 48 73 37 29 35 76 52 62 45 15 13 9 30 18 25 41 30 16 15 10 27 29 26 11 12 19 33 ~ ~ ~ 30.93 75.55 28.00
3 33 21 30 37 29 57 43 34 40 50 61 51 31 23 18 21 22 17 14 21 20 15 16 28 44 32 16 5.24 4.50 6.50 15 27.58 60.97 31.00
4 35 48 22 6.64 11 9.00 23 41 43 27 14 8.91 29 17 14 15 25 16 17 27 42 35 27 27 25 30 27 19 13 13 ~ 23.53 47.67 30.00
5 19 16 15 26 28 12 19 17 12 13 26 18 21 42 22 25 17 11 20 19 14 15 15 14 17 14 7.59 14 10 11 10 17.45 41.96 31.00
6 12 21 26 29 23 21 16 13 16 21 21 20 14 7.32 13 20 22 22 18 17 8.81 13 7.51 12 21 20 19 16 10 11 ~ 16.96 28.92 30.00
7 14 23 16 19 9 5.37 8.20 11 15 16 18 12 20 ~ 13 19 14 11 7.20 4.06 11 15 15 15 10 7.96 8.23 12 13 23 15 13.46 23.35 30.00
8 10 14 19 25 25 20 20 20 15 21 23 28 24 22 18 15 15 25 24 37 26 27 26 23 31 33 32 16 11 14 30 22.24 37.39 31.00
9 33 28 27 31 31 16 12 19 16 24 49 34 15 19 33 55 32 32 28 21 33 48 52 60 43 47 28 53 45 33 ~ 33.19 60.37 30.00
10 28 7.87 14 14 31 46 50 22 10 13 10 12 16 24 25 48 65 63 48 43 52 63 38 23 14 12 43 47 80 40 41 33.62 80.10 31.00
11 57 50 45 45 58 64 74 60 41 52 79 41 35 43 28 28 31 31 36 59 55 68 53 43 35 50 70 60 60 54 ~ 50.03 79.31 30.00
12 38 31 40 41 34 28 34 55 91 21 18 13 6.80 17 16 37 30 27 40 40 75 95 68 24 10 5.36 15 16 17 45 50 34.76 95.14 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. 46 31 7 2 4 0 0 0 90 44 13 6 4 0 0 0 194
REL. 51.1 34.4 7.7 2.2 4.4 0.0 0.0 0.0 100.0 48.9 14.4 6.7 4.4 0.0 0.0 0.015.1
ID 51 34 7 4 22 0 0 0 120
ABS. 84 7 0 0 0 0 0 0 91 7 0 0 0 0 0 0 48
REL. 92.3 7.6 0.0 0.0 0.0 0.0 0.0 0.0 100.0 7.7 0.0 0.0 0.0 0.0 0.0 0.0 2.4
ID 92 7 0 0 0 0 0 0 100
ABS. 77 14 0 0 0 0 0 0 91 14 0 0 0 0 0 0 60
REL. 84.6 15.3 0.0 0.0 0.0 0.0 0.0 0.0100.0 15.4 0.0 0.0 0.0 0.0 0.0 0.0 24.9
ID 84 15 0 0 0 0 0 0 100
ABS. 36 47 9 0 0 0 0 0 92 56 9 0 0 0 0 0 95
REL 39.1 51.0 9.7 0.0 0.0 0.0 0.0 0.0100.0 60.9 9.8 0.0 0.0 0.0 0.0 0.022.12
ID 39 51 9 0 0 0 0 0 100
Year
ABS. 243 99 16 2 4 0 0 0 364 121 22 6 4 0 0 0 194
REL. 66.7 27.1 4.3 0.5 1.0 0.0 0.0 0.0100.0 33.2 6.0 1.6 1.1 0.0 0.0 0.0 15.1
ID 66 27 4 1 5 0 0 0 104

Note:

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

Detailed overview of ambient air pollution valuis from individual stations - selection station