Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1324 - Plzen-Lochotin
Code:CZPMPZPLL
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 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 67 28 19 21 22 13 13 15 18 27 24.34 66.67 10.00
2 35 58 52 27 12 11 13 25 56 42 43 18 18 35 32 17 10 21 25 24 12 13 12 15 18 41 51 25 ~ ~ ~ 27.14 58.49 28.00
3 12 15 21 29 19 32 19 31 32 43 20 23 28 29 29 19 26 34 33 15 21 23 24 44 101 99 20 26 28 28 46 31.26 100.71 31.00
4 42 33 44 14 19 21 15 28 20 13 14 12 11 25 15 23 ~ ~ 23 31 41 42 28 24 22 23 26 28 26 30 ~ 24.76 44.04 28.00
5 15 15 13 13 13 14 14 20 ~ 20 18 14 25 21 10 12 12 11 19 13 19 14 21 25 22 17 15 12 14 13 14 16.00 25.25 30.00
6 12 15 14 13 8.97 8.05 18 20 15 12 21 13 11 17 16 15 14 14 13 12 16 15 16 20 13 12 13 19 24 17 ~ 14.90 24.01 30.00
7 23 ~ ~ ~ ~ ~ ~ ~ 15 10 10 23 12 ~ 13 17 20 13 23 13 10 11 12 12 12 11 7.87 8.45 12 12 10 13.50 23.02 23.00
8 15 15 13 17 33 20 20 21 25 16 20 23 19 17 11 17 19 21 22 ~ ~ ~ ~ ~ ~ 22 16 13 10 18 27 18.85 33.43 25.00
9 23 26 14 10 13 23 22 31 51 19 11 26 18 28 40 37 21 11 9 15 34 37 34 40 41 17 41 35 16 18 ~ 25.35 51.38 30.00
10 16 21 14 21 28 23 28 21 10 9 22 22 45 26 38 35 21 16 15 18 21 21 36 21 53 53 24 35 54 32 36 26.83 54.09 31.00
11 114 62 32 33 70 30 20 30 32 25 32 29 20 15 24 34 35 32 49 37 46 42 67 129 54 140 46 57 46 48 ~ 47.60 139.92 30.00
12 23 16 14 8.21 11 18 16 19 32 33 21 7.54 13 16 27 21 26 19 19 27 51 41 76 24 23 ~ 19 22 26 22 ~ 23.80 76.26 29.00

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. 53 13 2 1 0 0 0 0 69 16 3 1 0 0 0 0 101
REL. 76.8 18.8 2.8 1.4 0.0 0.0 0.0 0.0 100.0 23.2 4.3 1.4 0.0 0.0 0.0 0.025.3
ID 76 18 2 2 0 0 0 0 101
ABS. 84 4 0 0 0 0 0 0 88 4 0 0 0 0 0 0 44
REL. 95.4 4.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 4.5 0.0 0.0 0.0 0.0 0.0 0.0 3.4
ID 95 4 0 0 0 0 0 0 100
ABS. 67 11 0 0 0 0 0 0 78 11 0 0 0 0 0 0 51
REL. 85.8 14.1 0.0 0.0 0.0 0.0 0.0 0.0100.0 14.1 0.0 0.0 0.0 0.0 0.0 0.0 9.9
ID 85 14 0 0 0 0 0 0 100
ABS. 61 23 3 3 0 0 0 0 90 29 6 3 0 0 0 0 140
REL 67.7 25.5 3.3 3.3 0.0 0.0 0.0 0.0100.0 32.2 6.7 3.3 0.0 0.0 0.0 0.026.11
ID 67 25 3 6 0 0 0 0 103
Year
ABS. 265 51 5 4 0 0 0 0 325 60 9 4 0 0 0 0 140
REL. 81.5 15.6 1.5 1.2 0.0 0.0 0.0 0.0100.0 18.5 2.8 1.2 0.0 0.0 0.0 0.026.11
ID 81 15 1 2 0 0 0 0 101

Note:

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