Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 482 - Plzen-Husovo nam.
Code:CZPMHSHUS
Institution:Public Health Service
Region:Zapadocesky
District:Plzen-mesto
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ 66 22 34 35 19 32 46 31 72 60 54 37 26 95 19 15 51 24 34 29 35 25 24 21 55 48 44 34 32 20 37.97 95.00 30.00
2 13 32 ~ 98 ~ ~ 46 31 ~ ~ 54 ~ ~ ~ ~ ~ ~ 92 73 69 53 48 47 59 4.00 48 6.00 20 ~ ~ ~ 46.65 98.00 17.00
3 6.00 4.00 34 45 4.00 4.00 4.00 4.00 16 4.00 28 25 17 4.00 ~ ~ 84 45 19 20 4.00 4.00 40 49 42 64 42 28 27 42 42 25.90 84.00 29.00
4 8.00 8.00 4.00 4.00 ~ 4.00 48 32 37 4.00 4.00 4.00 4.00 14 4.00 4.00 ~ ~ ~ 32 43 38 33 4.00 25 4.00 14 52 35 ~ ~ 18.52 52.00 25.00
5 ~ ~ ~ ~ 21 24 28 18 28 42 32 41 16 15 19 4.00 21 33 31 8.00 23 16 28 15 39 26 41 50 26 4.00 4.00 24.19 50.00 27.00
6 28 24 36 34 17 ~ 4.00 39 60 34 41 11 9.00 92 21 21 35 ~ 83 10 67 ~ 40 ~ 44 24 30 22 25 40 ~ 34.27 92.00 26.00
7 ~ ~ 40 6.00 ~ ~ 51 ~ ~ ~ ~ ~ 33 ~ 18 13 49 ~ ~ ~ ~ 62 36 27 4.00 15 4.00 8.00 7.00 ~ 28 25.06 62.00 16.00
8 ~ ~ 30 12 9.00 23 4.00 18 13 ~ 10 17 ~ ~ ~ ~ 4.00 19 52 64 41 ~ 20 25 21 34 19 19 42 25 36 24.22 64.00 23.00
9 12 50 42 21 ~ 18 52 112 ~ 36 36 ~ 41 53 63 40 41 62 51 ~ 229 128 ~ 73 46 38 118 88 84 77 ~ 64.44 229.00 25.00
10 56 39 23 30 52 29 28 32 46 31 29 38 40 27 48 19 18 24 29 44 44 45 23 22 31 27 23 4.00 24 33 ~ 31.93 56.00 30.00
11 36 44 31 17 29 42 47 ~ 42 59 60 106 51 13 6.00 33 4.00 40 34 57 35 27 4.00 58 25 57 53 56 17 68 ~ 39.69 106.00 29.00
12 46 59 41 60 23 20 42 45 113 130 50 12 11 26 53 38 136 71 9.00 22 65 33 35 19 8.00 6.00 4.00 5.00 6.00 4.00 ~ 39.73 136.00 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. 38 31 7 0 0 0 0 0 76 38 7 0 0 0 0 0 98
REL. 50.0 40.7 9.2 0.0 0.0 0.0 0.0 0.0 100.0 50.0 9.2 0.0 0.0 0.0 0.0 0.04.2
ID 50 40 9 0 0 0 0 0 100
ABS. 54 21 3 0 0 0 0 0 78 24 3 0 0 0 0 0 92
REL. 69.2 26.9 3.8 0.0 0.0 0.0 0.0 0.0 100.0 30.8 3.8 0.0 0.0 0.0 0.0 0.0 14.6
ID 69 26 3 0 0 0 0 0 100
ABS. 31 25 4 3 0 1 0 0 64 33 8 4 1 1 0 0 229
REL. 48.4 39.0 6.2 4.6 0.0 1.5 0.0 0.0100.0 51.6 12.5 6.3 1.6 1.6 0.0 0.0 21.9
ID 48 39 6 9 0 39 0 0 142
ABS. 46 37 2 4 0 0 0 0 89 43 6 4 0 0 0 0 136
REL 51.6 41.5 2.2 4.4 0.0 0.0 0.0 0.0100.0 48.3 6.7 4.5 0.0 0.0 0.0 0.017.12
ID 51 41 2 8 0 0 0 0 104
Year
ABS. 169 114 16 7 0 1 0 0 307 138 24 8 1 1 0 0 229
REL. 55.0 37.1 5.2 2.2 0.0 0.3 0.0 0.0100.0 45.0 7.8 2.6 0.3 0.3 0.0 0.0 21.9
ID 55 37 5 4 0 8 0 0 110

Note:

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