Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1323 - Plzen-Bory
Code:CZPMPZPLB
Institution:Plzeň Municipal Authority
Region:Zapadocesky
District:Plzen-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 84 90 15 16 14 21 26 21 33 66 69 93 58 95 76 36 28 33 23 33 39 49 57 38 39 84 72 47 55 38 42 48.09 95.10 31.00
2 45 39 41 114 65 82 45 30 49 67 55 30 30 36 32 32 39 42 40 90 84 66 72 40 76 72 29 17 ~ ~ ~ 52.17 113.75 28.00
3 17 14 14 11 15 20 15 20 32 41 24 28 21 26 55 48 46 42 31 33 23 25 31 ~ ~ ~ ~ 53 47 87 70 32.90 86.57 27.00
4 44 43 71 33 45 50 39 39 58 33 29 23 26 41 38 54 55 39 32 37 61 72 39 33 37 25 18 23 22 20 ~ 39.22 71.62 30.00
5 10 10 23 22 18 17 22 28 23 31 35 45 36 28 39 21 32 28 32 43 27 17 17 20 25 26 42 35 15 12 15 25.55 44.61 31.00
6 26 27 19 26 20 16 8.59 20 16 18 30 24 16 12 12 14 18 19 19 17 17 19 21 25 23 23 10 13 23 16 ~ 19.04 30.26 30.00
7 23 41 22 13 14 17 24 19 19 16 7.56 11 11 19 17 16 14 10 33 48 28 38 19 20 23 32 26 17 15 13 22 20.85 48.28 31.00
8 17 19 35 16 21 20 17 14 20 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 19.79 34.72 9.00
9 ~ ~ ~ ~ ~ ~ 46 47 29 18 25 11 15 8.93 13 13 18 22 31 36 51 73 54 64 63 39 47 40 53 52 ~ 36.26 72.92 24.00
10 54 50 41 33 63 58 66 51 32 10 7.04 14 23 22 42 60 19 28 58 24 28 37 32 8.15 3.63 14 9 4.61 12 8.24 5.59 29.64 66.19 31.00
11 5.53 25 25 13 18 24 46 44 34 40 29 59 38 20 24 34 27 37 51 45 42 48 74 56 46 66 58 76 30 70 ~ 40.01 76.11 30.00
12 46 ~ 64 43 15 11 21 30 88 183 98 45 14 30 37 29 57 84 15 19 31 33 60 36 17 11 14 72 65 39 17 44.04 182.57 30.00

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. 35 33 17 1 0 0 0 0 86 51 18 1 0 0 0 0 114
REL. 40.6 38.3 19.7 1.1 0.0 0.0 0.0 0.0 100.0 59.3 20.9 1.2 0.0 0.0 0.0 0.04.2
ID 40 38 19 2 0 0 0 0 101
ABS. 66 23 2 0 0 0 0 0 91 25 2 0 0 0 0 0 72
REL. 72.5 25.2 2.1 0.0 0.0 0.0 0.0 0.0 100.0 27.5 2.2 0.0 0.0 0.0 0.0 0.0 22.4
ID 72 25 2 0 0 0 0 0 100
ABS. 47 16 1 0 0 0 0 0 64 17 1 0 0 0 0 0 73
REL. 73.4 25.0 1.5 0.0 0.0 0.0 0.0 0.0100.0 26.6 1.6 0.0 0.0 0.0 0.0 0.0 22.9
ID 73 25 1 0 0 0 0 0 100
ABS. 46 37 7 0 1 0 0 0 91 45 8 1 1 0 0 0 183
REL 50.5 40.6 7.6 0.0 1.0 0.0 0.0 0.0100.0 49.5 8.8 1.1 1.1 0.0 0.0 0.010.12
ID 50 40 7 0 5 0 0 0 104
Year
ABS. 194 109 27 1 1 0 0 0 332 138 29 2 1 0 0 0 183
REL. 58.4 32.8 8.1 0.3 0.3 0.0 0.0 0.0100.0 41.6 8.7 0.6 0.3 0.0 0.0 0.010.12
ID 58 32 8 1 0 0 0 101

Note:

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