Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1322 - Plzen-Slovany
Code:CZPMPZPSL
Institution:Plzen City
Region:Zapadocesky
District:Plzen-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ 28 41 31 80 87 81 57 48 60 55 37 35 64 ~ 33 31 22 32 ~ 30 36 42 91 83 86 70 48 6.95 8.46 11 47.65 91.44 28.00
2 44 28 33 25 20 38 21 11 13 24 51 29 11 43 40 29 43 46 35 34 55 62 ~ ~ ~ ~ ~ ~ ~ ~ ~ 33.33 61.55 22.00
3 ~ 30 18 17 21 34 33 24 24 30 18 31 49 37 29 27 38 40 36 53 66 59 81 59 42 36 37 45 28 40 44 37.55 81.11 30.00
4 32 32 36 52 37 28 29 27 21 41 56 40 18 36 14 28 30 43 45 59 50 26 11 15 31 25 11 8.71 6.37 12 ~ 29.99 59.13 30.00
5 22 20 35 40 27 11 16 21 42 40 30 12 12 27 45 38 32 28 20 10 15 26 29 35 26 17 13 11 30 21 32 25.28 45.15 31.00
6 37 26 23 17 32 27 30 24 24 26 22 28 25 25 32 25 14 24 42 43 ~ 36 25 11 15 30 20 33 32 28 ~ 26.74 43.00 29.00
7 19 19 31 24 12 18 21 13 11 15 23 30 21 21 13 21 29 35 28 32 24 20 29 31 27 33 27 23 18 17 25 22.86 35.26 31.00
8 40 38 21 25 16 25 29 35 28 33 34 23 ~ 36 ~ ~ ~ ~ ~ ~ ~ ~ 38 37 27 12 19 38 32 29 31 29.41 40.31 22.00
9 24 8.87 15 30 36 31 43 32 36 32 44 63 47 41 36 20 30 39 34 31 47 65 22 37 43 53 84 33 31 26 ~ 37.16 84.43 30.00
10 25 54 58 46 34 48 31 26 47 34 38 48 70 41 29 93 59 74 77 41 38 58 60 ~ 23 38 37 56 35 92 64 49.07 93.22 30.00
11 43 59 57 42 56 47 140 113 96 54 70 63 86 90 106 79 43 20 39 49 ~ ~ ~ 76 47 24 75 142 69 70 ~ 68.81 142.01 27.00
12 49 57 52 68 49 41 49 107 177 60 59 75 39 32 35 24 51 77 70 80 55 76 73 102 58 59 43 64 100 44 40 63.32 176.92 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. 34 38 8 0 0 0 0 0 80 46 8 0 0 0 0 0 91
REL. 42.5 47.5 10.0 0.0 0.0 0.0 0.0 0.0 100.0 57.5 10.0 0.0 0.0 0.0 0.0 0.024.1
ID 42 47 10 0 0 0 0 0 100
ABS. 67 23 0 0 0 0 0 0 90 23 0 0 0 0 0 0 59
REL. 74.4 25.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 25.6 0.0 0.0 0.0 0.0 0.0 0.0 20.4
ID 74 25 0 0 0 0 0 0 100
ABS. 58 24 1 0 0 0 0 0 83 25 1 0 0 0 0 0 84
REL. 69.8 28.9 1.2 0.0 0.0 0.0 0.0 0.0100.0 30.1 1.2 0.0 0.0 0.0 0.0 0.0 27.9
ID 69 28 1 0 0 0 0 0 100
ABS. 9 50 21 7 1 0 0 0 88 79 29 8 1 0 0 0 177
REL 10.2 56.8 23.8 7.9 1.1 0.0 0.0 0.0100.0 89.8 33.0 9.1 1.1 0.0 0.0 0.0 9.12
ID 10 56 23 15 5 0 0 0 112
Year
ABS. 168 135 30 7 1 0 0 0 341 173 38 8 1 0 0 0 177
REL. 49.2 39.5 8.7 2.0 0.2 0.0 0.0 0.0100.0 50.7 11.1 2.3 0.3 0.0 0.0 0.0 9.12
ID 49 39 8 4 1 0 0 0 103

Note:

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