Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1323 - Plzen-Bory
Code:CZPMPZPLB
Institution:Mun. Authority of the town Plzen
Region:Zapadocesky
District:Plzen-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 14 18 20 17 46 88 29 18 24 27 41 21 21 14 14 28 44 42 35 40 32 64 26 29 21 24 19 30 25 27 25 29.86 88.46 31.00
2 29 52 44 19 7.85 7.02 7.23 19 80 64 74 38 29 45 34 23 17 28 26 31 11 14 20 24 22 36 32 22 ~ ~ ~ 30.49 79.85 28.00
3 14 13 29 51 20 21 28 25 23 35 54 55 44 41 36 32 49 57 27 12 10 13 17 45 70 35 32 20 28 36 58 33.21 69.90 31.00
4 62 40 20 9 21 16 15 23 24 13 16 11 11 26 18 31 13 18 16 37 37 18 33 23 32 38 31 41 51 28 ~ 25.72 62.40 30.00
5 15 31 33 25 29 22 14 16 31 23 12 8.91 26 16 13 31 27 22 22 26 29 14 17 22 25 31 37 19 16 16 25 22.49 37.22 31.00
6 29 19 13 12 13 11 28 25 25 29 34 23 28 38 36 30 24 23 13 11 24 18 40 40 26 15 17 27 21 13 ~ 23.50 40.26 30.00
7 19 24 16 13 ~ ~ ~ ~ 39 20 27 31 13 ~ 15 19 21 34 ~ 24 13 15 19 11 31 27 26 24 34 34 20 22.60 38.71 25.00
8 28 40 47 44 53 35 17 ~ ~ 23 29 44 31 16 13 16 28 24 23 18 16 38 34 55 36 27 38 29 37 37 37 31.53 55.17 29.00
9 30 45 39 17 27 24 23 46 45 55 29 40 67 50 72 41 41 21 32 28 31 31 35 34 41 12 39 ~ 11 13 ~ 35.13 72.31 29.00
10 8.87 17 9 14 30 26 27 27 13 12 28 47 68 43 63 45 53 53 51 46 48 28 36 23 49 31 28 57 77 61 53 37.85 77.06 31.00
11 134 82 75 65 89 33 17 38 60 55 63 56 24 26 79 41 36 28 56 32 58 41 86 105 51 90 42 77 54 52 ~ 58.18 133.65 30.00
12 28 20 15 8.73 12 19 20 19 40 40 17 8.28 19 18 37 29 22 ~ ~ ~ ~ ~ 85 20 17 7.16 16 30 25 19 ~ 23.63 85.46 25.00

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. 59 27 4 0 0 0 0 0 90 31 4 0 0 0 0 0 88
REL. 65.5 30.0 4.4 0.0 0.0 0.0 0.0 0.0 100.0 34.4 4.4 0.0 0.0 0.0 0.0 0.06.1
ID 65 30 4 0 0 0 0 0 100
ABS. 78 13 0 0 0 0 0 0 91 13 0 0 0 0 0 0 62
REL. 85.7 14.2 0.0 0.0 0.0 0.0 0.0 0.0 100.0 14.3 0.0 0.0 0.0 0.0 0.0 0.0 1.4
ID 85 14 0 0 0 0 0 0 100
ABS. 50 31 2 0 0 0 0 0 83 33 2 0 0 0 0 0 72
REL. 60.2 37.3 2.4 0.0 0.0 0.0 0.0 0.0100.0 39.8 2.4 0.0 0.0 0.0 0.0 0.0 15.9
ID 60 37 2 0 0 0 0 0 100
ABS. 42 32 10 2 0 0 0 0 86 44 12 2 0 0 0 0 134
REL 48.8 37.2 11.6 2.3 0.0 0.0 0.0 0.0100.0 51.2 14.0 2.3 0.0 0.0 0.0 0.0 1.11
ID 48 37 11 4 0 0 0 0 102
Year
ABS. 229 103 16 2 0 0 0 0 350 121 18 2 0 0 0 0 134
REL. 65.4 29.4 4.5 0.5 0.0 0.0 0.0 0.0100.0 34.6 5.1 0.6 0.0 0.0 0.0 0.0 1.11
ID 65 29 4 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