Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1324 - Plzen-Lochotin
Code:CZPMPZPLL
Institution:Plzen City
Region:Zapadocesky
District:Plzen-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ 18 20 64 51 44 43 51 30 39 26 21 52 49 18 19 13 16 22 13 26 24 45 58 46 53 37 12 9 11 32.02 63.97 29.00
2 27 21 20 21 24 36 17 10 11 24 42 26 14 23 23 17 20 32 18 17 47 45 47 22 14 42 48 50 15 ~ ~ 26.70 50.25 29.00
3 11 11 6.83 3.58 8.50 19 17 12 9 22 5.94 13 22 17 8.95 14 18 24 21 26 29 47 43 38 43 20 19 26 20 25 32 20.49 47.07 31.00
4 23 17 19 23 24 17 16 13 12 21 34 33 18 18 14 14 18 27 40 33 41 17 ~ ~ ~ 20 14 14 13 14 ~ 21.03 40.94 27.00
5 19 12 16 21 14 11 12 19 26 27 16 10 12 17 31 38 23 18 13 10 15 14 21 32 21 12 10 10 13 12 26 17.76 37.56 31.00
6 42 27 16 ~ 13 13 19 12 11 11 ~ ~ ~ ~ 28 16 11 20 26 24 ~ ~ 22 10 11 13 14 11 11 11 ~ 17.00 41.54 23.00
7 10 10 11 12 5.77 7.25 11 8.03 9 10 15 12 11 13 6.80 9 15 14 14 14 15 11 14 21 20 18 19 12 9 13 24 12.68 23.55 31.00
8 32 17 13 12 11 16 16 22 26 29 20 16 23 ~ ~ ~ ~ ~ ~ ~ 14 14 18 23 18 10 17 27 27 25 20 19.26 31.53 24.00
9 24 7.53 10 14 24 21 18 27 36 24 45 46 25 19 18 14 22 23 19 19 21 24 12 20 28 32 59 19 16 13 ~ 23.26 59.00 30.00
10 14 39 38 29 23 21 13 16 41 25 21 27 54 26 27 49 32 30 46 18 15 31 40 40 22 18 18 47 17 43 34 29.48 54.20 31.00
11 33 45 22 20 21 23 119 103 74 23 44 25 40 49 55 33 27 28 65 60 42 105 33 41 30 12 52 108 62 41 ~ 47.86 118.73 30.00
12 31 38 38 59 37 23 26 48 151 27 28 33 21 18 14 13 23 45 30 43 27 31 44 55 37 38 32 41 69 26 28 37.86 151.44 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. 64 25 0 0 0 0 0 0 89 25 0 0 0 0 0 0 64
REL. 71.9 28.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 28.1 0.0 0.0 0.0 0.0 0.0 0.05.1
ID 71 28 0 0 0 0 0 0 100
ABS. 76 5 0 0 0 0 0 0 81 5 0 0 0 0 0 0 42
REL. 93.8 6.1 0.0 0.0 0.0 0.0 0.0 0.0 100.0 6.2 0.0 0.0 0.0 0.0 0.0 0.0 1.6
ID 93 6 0 0 0 0 0 0 100
ABS. 81 4 0 0 0 0 0 0 85 4 0 0 0 0 0 0 59
REL. 95.2 4.7 0.0 0.0 0.0 0.0 0.0 0.0100.0 4.7 0.0 0.0 0.0 0.0 0.0 0.0 27.9
ID 95 4 0 0 0 0 0 0 100
ABS. 50 35 2 4 1 0 0 0 92 42 7 5 1 0 0 0 151
REL 54.3 38.0 2.1 4.3 1.0 0.0 0.0 0.0100.0 45.7 7.6 5.4 1.1 0.0 0.0 0.0 9.12
ID 54 38 2 8 5 0 0 0 108
Year
ABS. 271 69 2 4 1 0 0 0 347 76 7 5 1 0 0 0 151
REL. 78.0 19.8 0.5 1.1 0.2 0.0 0.0 0.0100.0 21.9 2.0 1.4 0.3 0.0 0.0 0.0 9.12
ID 78 19 2 1 0 0 0 102

Note:

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