Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1194 - Plzen-Roudna
Code:CZPMHSPLR
Institution:Public Health Service
Region:Plzensky
District:Plzen-mesto
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 20 18 20 83 84 57 100 59 30 42 69 58 40 35 30 33 51 44 44 26 33 ~ ~ ~ 40 34 18 17 39 87 61 45.47 100.23 28.00
2 50 76 48 80 144 92 45 37 ~ ~ 13 12 26 16 17 16 34 38 22 20 19 28 11 14 33 19 18 19 ~ ~ ~ 36.48 144.18 26.00
3 37 19 18 29 29 32 15 27 24 20 60 49 79 21 28 27 25 48 29 35 30 22 13 15 16 16 21 29 33 43 38 29.92 78.84 31.00
4 28 34 21 21 19 17 17 22 22 25 20 22 21 20 30 38 48 52 ~ ~ ~ 24 24 17 23 22 11 16 20 19 ~ 24.12 51.65 27.00
5 18 18 19 15 15 22 15 12 14 16 13 16 21 16 18 29 24 13 15 20 15 ~ 14 ~ ~ ~ 19 23 24 30 23 18.47 30.48 27.00
6 14 20 23 35 ~ 18 20 28 ~ 21 30 ~ ~ ~ 28 ~ ~ ~ 20 22 28 22 17 17 17 27 26 17 18 26 ~ 22.43 34.75 22.00
7 34 26 21 18 16 14 17 24 18 19 25 16 14 13 ~ 16 26 20 19 20 18 20 27 19 28 28 17 15 ~ 18 37 20.71 36.57 29.00
8 24 23 18 22 21 20 24 32 26 15 13 16 16 20 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 24 29 32 46 26 23.57 46.29 19.00
9 17 18 20 36 36 31 27 17 22 32 37 19 33 24 27 41 32 24 33 ~ ~ ~ 16 14 30 38 27 35 35 74 ~ 29.55 73.68 27.00
10 59 78 53 46 24 23 29 25 20 25 22 22 29 52 49 73 34 40 21 30 70 85 29 51 58 15 19 19 52 50 44 40.17 84.65 31.00
11 76 24 24 40 27 35 46 37 17 34 44 88 129 42 76 60 54 34 37 43 26 35 54 23 34 70 37 33 44 28 ~ 45.07 128.76 30.00
12 44 67 42 51 28 28 27 26 34 ~ ~ ~ 49 24 27 161 86 36 61 91 79 49 33 20 17 18 26 30 22 15 11 42.90 161.38 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. 49 26 8 2 0 0 0 0 85 36 10 2 0 0 0 0 144
REL. 57.6 30.5 9.4 2.3 0.0 0.0 0.0 0.0 100.0 42.4 11.8 2.4 0.0 0.0 0.0 0.05.2
ID 57 30 9 4 0 0 0 0 102
ABS. 71 5 0 0 0 0 0 0 76 5 0 0 0 0 0 0 52
REL. 93.4 6.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 6.6 0.0 0.0 0.0 0.0 0.0 0.0 18.4
ID 93 6 0 0 0 0 0 0 100
ABS. 63 11 1 0 0 0 0 0 75 12 1 0 0 0 0 0 74
REL. 84.0 14.6 1.3 0.0 0.0 0.0 0.0 0.0100.0 16.0 1.3 0.0 0.0 0.0 0.0 0.0 30.9
ID 84 14 1 0 0 0 0 0 100
ABS. 37 38 12 1 1 0 0 0 89 52 14 2 1 0 0 0 161
REL 41.5 42.6 13.4 1.1 1.1 0.0 0.0 0.0100.0 58.4 15.7 2.2 1.1 0.0 0.0 0.016.12
ID 41 42 13 2 5 0 0 0 105
Year
ABS. 220 80 21 3 1 0 0 0 325 105 25 4 1 0 0 0 161
REL. 67.6 24.6 6.4 0.9 0.3 0.0 0.0 0.0100.0 32.3 7.7 1.2 0.3 0.0 0.0 0.016.12
ID 67 24 6 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