Detailed overview of ambient air pollution valuis from individual stations


Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1323 - Plzen-Bory
Code:CZPMPZPLB
Institution:Plzen City
Region:Plzensky
District:Plzen-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 19 28 73 111 86 53 136 81 26 43 52 53 62 73 35 36 38 32 29 13 28 27 54 17 17 8.03 7.45 10 13 57 40 43.81 135.74 31.00
2 29 94 62 62 166 69 28 15 7.17 5.10 10 13 39 44 47 37 53 40 14 9 20 16 10 12 21 11 14 14 ~ ~ ~ 34.34 166.10 28.00
3 38 26 18 47 73 35 18 39 23 32 77 105 66 44 57 45 23 33 15 26 17 27 ~ ~ ~ ~ 61 66 71 40 29 42.68 105.26 27.00
4 51 55 37 44 40 25 32 43 43 39 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 57 30 30 22 16 11 11 14 31 ~ 33.28 57.41 19.00
5 41 35 35 20 25 52 36 17 27 ~ ~ ~ 32 18 31 31 24 34 60 ~ ~ ~ ~ 16 15 25 45 23 19 27 26 29.70 60.45 24.00
6 22 34 47 31 23 47 31 24 25 21 24 30 22 28 28 34 39 49 44 25 28 22 25 52 46 34 38 22 14 18 ~ 30.84 52.05 30.00
7 27 21 18 19 20 18 23 42 32 27 35 41 21 24 38 38 29 21 23 23 19 24 23 22 24 23 32 38 44 44 32 27.99 43.87 31.00
8 22 24 25 29 27 30 32 22 32 21 25 22 19 28 40 44 35 48 52 57 54 73 ~ 11 16 25 18 35 51 50 32 33.33 72.52 30.00
9 53 ~ ~ ~ ~ ~ ~ ~ ~ 18 45 52 39 13 28 26 22 41 52 65 31 26 39 32 44 25 32 22 28 68 ~ 36.38 68.39 22.00
10 70 64 35 27 19 23 30 42 32 43 40 30 33 33 38 55 18 23 15 38 109 48 14 56 45 8.66 6.45 20 33 80 68 38.63 108.72 31.00
11 49 19 21 40 38 36 34 20 12 20 42 69 211 69 111 67 43 67 47 51 56 38 46 42 68 75 93 40 44 24 ~ 53.06 210.75 30.00
12 75 72 83 93 51 50 36 35 54 57 68 46 40 35 40 232 79 42 89 67 90 73 57 24 12 16 38 25 11 ~ ~ 58.19 231.71 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. 43 30 9 3 1 0 0 0 86 43 13 4 1 0 0 0 166
REL. 50.0 34.8 10.4 3.4 1.1 0.0 0.0 0.0 100.0 50.0 15.1 4.7 1.2 0.0 0.0 0.05.2
ID 50 34 10 6 5 0 0 0 108
ABS. 45 28 0 0 0 0 0 0 73 28 0 0 0 0 0 0 60
REL. 61.6 38.3 0.0 0.0 0.0 0.0 0.0 0.0 100.0 38.4 0.0 0.0 0.0 0.0 0.0 0.0 19.5
ID 61 38 0 0 0 0 0 0 100
ABS. 54 27 2 0 0 0 0 0 83 29 2 0 0 0 0 0 73
REL. 65.0 32.5 2.4 0.0 0.0 0.0 0.0 0.0100.0 34.9 2.4 0.0 0.0 0.0 0.0 0.0 22.8
ID 65 32 2 0 0 0 0 0 100
ABS. 26 40 20 2 0 2 0 0 90 64 24 4 2 2 0 0 232
REL 28.8 44.4 22.2 2.2 0.0 2.2 0.0 0.0100.0 71.1 26.7 4.4 2.2 2.2 0.0 0.016.12
ID 28 44 22 4 0 55 0 0 155
Year
ABS. 168 125 31 5 1 2 0 0 332 164 39 8 3 2 0 0 232
REL. 50.6 37.6 9.3 1.5 0.3 0.6 0.0 0.0100.0 49.4 11.7 2.4 0.9 0.6 0.0 0.016.12
ID 50 37 9 3 1 15 0 0 117

Note:

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