Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NO-nitrogen monoxide
Station:1321 - Plzen-stred
Code:CZPMPZPST
Institution:Plzen City
Region:Zapadocesky
District:Plzen-mesto
IHd: 150
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 8.13 1.63 7.03 4.29 55 31 44 24 19 17 ~ ~ ~ 27 29 10 15 8.64 11 15 8.18 13 10 29 25 19 19 18 ~ ~ ~ 18.70 55.43 25.00
2 ~ 12 18 23 23 75 25 8.64 7.89 21 31 12 6.28 18 18 10 14 19 12 7.23 40 30 50 16 11 32 60 42 10 ~ ~ 23.32 75.18 28.00
3 13 9 8.01 4.03 4.30 15 9 10 6.60 13 5.62 10 46 12 7.01 5.39 11 8.75 15 24 22 54 32 14 13 8.12 5.49 11 6.76 ~ ~ 13.91 54.15 29.00
4 16 21 8.92 14 11 6.19 6.84 4.14 3.49 7.19 13 22 10 13 8.83 18 13 ~ 37 31 27 5.27 1.74 7.46 16 6.19 3.07 3.12 2.90 4.97 ~ 11.88 37.22 29.00
5 13 5.62 5.53 9 2.70 1.36 2.89 ~ 20 14 5.90 1.38 2.37 4.26 16 14 11 11 11 6.30 8.24 5.61 7.96 18 6.45 1.63 1.00 1.69 10 2.95 14 7.83 20.09 30.00
6 23 16 1.71 6.77 3.36 2.88 13 2.25 0.90 1.06 ~ 2.36 2.30 ~ 2.70 1.78 1.32 6.79 10 17 24 3.92 7.00 4.49 5.81 9 11 12 14 25 ~ 8.27 24.94 28.00
7 2.00 2.41 6.16 4.01 1.30 1.09 2.04 2.47 2.23 6.19 8.60 13 6.31 11 5.33 12 11 18 10 11 6.89 5.14 13 10 24 9 ~ 7.34 4.24 4.58 13 7.82 23.78 30.00
8 21 8.47 6.66 8.26 2.48 6.37 14 20 22 16 6.24 5.72 21 21 19 20 23 16 6.83 11 4.61 6.85 8.41 8.01 13 3.23 17 20 19 13 12 12.91 22.66 31.00
9 13 5.14 6.53 11 16 14 22 25 21 12 35 56 ~ 6.98 11 6.74 14 13 10 11 17 27 5.34 16 18 25 46 8.19 5.09 4.47 ~ 16.54 55.62 29.00
10 6.44 33 20 21 11 21 12 11 43 20 17 21 44 15 8.21 52 31 30 38 14 14 24 22 63 33 18 18 31 17 78 26 26.23 78.22 31.00
11 53 45 20 18 28 18 115 108 104 42 34 18 39 42 60 44 16 34 54 57 38 112 28 44 22 9 56 127 39 38 ~ 48.83 127.23 30.00
12 24 21 24 29 21 12 17 64 98 29 73 62 ~ ~ ~ ~ ~ ~ ~ 22 17 22 34 40 7.40 12 12 37 54 16 12 31.59 98.18 24.00

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- 50 51- 100 101- 150 151- 225 226- 300 301- 450 451- 600 over 600 50 100 150 225 300 450 600
ABS. 77 5 0 0 0 0 0 0 82 5 0 0 0 0 0 0 75
REL. 93.9 6.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 6.1 0.0 0.0 0.0 0.0 0.0 0.06.2
ID 93 6 0 0 0 0 0 0 100
ABS. 87 0 0 0 0 0 0 0 87 0 0 0 0 0 0 0 37
REL.100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19.4
ID 100 0 0 0 0 0 0 0 100
ABS. 89 1 0 0 0 0 0 0 90 1 0 0 0 0 0 0 56
REL. 98.8 1.1 0.0 0.0 0.0 0.0 0.0 0.0100.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 12.9
ID 98 1 0 0 0 0 0 0 100
ABS. 67 13 5 0 0 0 0 0 85 18 5 0 0 0 0 0 127
REL 78.8 15.2 5.8 0.0 0.0 0.0 0.0 0.0100.0 21.2 5.9 0.0 0.0 0.0 0.0 0.028.11
ID 78 15 5 0 0 0 0 0 100
Year
ABS. 320 19 5 0 0 0 0 0 344 24 5 0 0 0 0 0 127
REL. 93.0 5.5 1.4 0.0 0.0 0.0 0.0 0.0100.0 7.0 1.5 0.0 0.0 0.0 0.0 0.028.11
ID 93 5 1 0 0 0 0 0 100

Note:

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