Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1324 - Plzen-Lochotin
Code:CZPMPZPLL
Institution:Plzen City
Region:Plzensky
District:Plzen-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 38 25 23 76 116 53 126 77 53 59 61 54 41 41 29 33 40 33 27 12 26 30 84 18 18 10 8.46 8.10 17 33 13 41.42 125.72 31.00
2 ~ ~ ~ ~ ~ 52 27 13 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 13 17 ~ ~ ~ 24.35 51.87 5.00
3 38 18 17 35 46 44 14 43 23 33 87 54 81 17 26 24 26 43 20 26 22 19 12 12 16 15 18 27 30 61 30 31.52 87.49 31.00
4 31 22 18 20 17 14 14 18 19 21 16 17 18 16 23 39 42 46 30 19 27 37 27 21 27 22 11 20 18 22 ~ 23.05 45.76 30.00
5 18 20 22 19 20 31 15 14 14 19 13 21 25 17 26 46 17 12 21 21 16 14 13 23 18 22 21 18 17 24 16 19.73 45.78 31.00
6 14 18 20 15 13 12 15 21 15 17 20 22 14 24 18 15 29 20 13 14 21 16 11 19 13 25 17 13 13 18 ~ 17.23 28.51 30.00
7 26 22 16 13 10 6.35 11 11 13 12 17 ~ ~ ~ ~ ~ 13 6.99 4.40 ~ 14 17 22 17 21 22 16 14 16 16 29 15.38 28.97 25.00
8 17 19 14 19 20 19 21 26 19 11 9 10 11 15 20 26 10 12 13 14 20 16 13 13 9 8.98 17 18 28 32 20 16.73 32.29 31.00
9 13 13 15 31 20 21 14 7.97 10 14 29 13 24 15 31 8.12 19 15 17 40 7.39 6.80 ~ ~ ~ ~ 18 24 ~ 23 ~ 17.91 39.78 25.00
10 32 25 16 11 8.10 9 9 16 15 17 12 12 15 25 17 17 13 12 12 12 14 17 13 ~ ~ ~ ~ ~ ~ ~ ~ 15.34 32.28 23.00
11 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 47 25 ~ 35.86 46.76 2.00
12 30 28 21 31 18 16 16 12 35 ~ ~ ~ 50 28 29 165 70 30 56 68 66 48 35 20 15 18 25 27 16 17 13 35.79 164.85 28.00

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. 40 20 5 2 0 0 0 0 67 27 7 2 0 0 0 0 126
REL. 59.7 29.8 7.4 2.9 0.0 0.0 0.0 0.0 100.0 40.3 10.4 3.0 0.0 0.0 0.0 0.07.1
ID 59 29 7 5 0 0 0 0 102
ABS. 86 5 0 0 0 0 0 0 91 5 0 0 0 0 0 0 46
REL. 94.5 5.4 0.0 0.0 0.0 0.0 0.0 0.0 100.0 5.5 0.0 0.0 0.0 0.0 0.0 0.0 16.5
ID 94 5 0 0 0 0 0 0 100
ABS. 80 1 0 0 0 0 0 0 81 1 0 0 0 0 0 0 40
REL. 98.7 1.2 0.0 0.0 0.0 0.0 0.0 0.0100.0 1.2 0.0 0.0 0.0 0.0 0.0 0.0 20.9
ID 98 1 0 0 0 0 0 0 100
ABS. 43 7 2 0 1 0 0 0 531 10 3 1 1 0 0 0 165
REL 81.1 13.2 3.7 0.0 1.8 0.0 0.0 0.0100.0 18.9 5.7 1.9 1.9 0.0 0.0 0.016.12
ID 81 13 3 0 9 0 0 0 107
Year
ABS. 249 33 7 2 1 0 0 0 292 43 10 3 1 0 0 0 165
REL. 85.2 11.3 2.3 0.6 0.3 0.0 0.0 0.0100.0 14.7 3.4 1.0 0.3 0.0 0.0 0.016.12
ID 85 11 2 1 1 0 0 0 102

Note:

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