Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1112 - Prelouc
Code:CZPUCMPRE
Institution:Czech Hydrometeorological Institute
Region:Vychodocesky
District:Pardubice
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 37 39 41 47 71 116 58 49 43 34 41 41 48 35 33 56 49 49 46 50 45 58 53 46 39 50 52 46 20 18 29 46.37 115.66 31.00
2 47 52 57 57 32 28 28 32 55 52 30 16 19 27 58 30 23 30 43 49 32 28 22 24 25 42 46 36 ~ ~ ~ 36.37 58.05 28.00
3 26 36 36 38 33 29 23 33 43 38 30 38 30 29 25 23 29 34 28 20 32 34 30 37 32 30 24 24 32 ~ 21 30.52 43.13 30.00
4 25 18 19 15 20 23 16 12 16 18 16 19 18 14 23 34 28 26 24 29 27 41 43 26 24 37 25 34 34 30 ~ 24.32 42.73 30.00
5 24 29 30 23 21 24 27 22 47 25 22 26 25 29 21 20 23 24 23 32 51 33 30 33 44 37 41 42 55 51 40 31.39 54.73 31.00
6 34 38 41 31 24 21 25 35 31 30 29 20 16 17 30 22 28 19 18 26 12 6.76 10 11 11 13 24 21 16 19 ~ 22.68 41.18 30.00
7 21 20 16 21 21 28 15 5.98 30 23 24 25 27 17 15 12 19 19 19 18 16 12 12 13 13 19 16 14 14 16 15 17.93 30.19 31.00
8 16 42 40 39 36 36 51 48 52 53 37 32 35 25 33 29 48 36 37 23 31 32 32 38 41 41 44 41 37 41 42 37.67 52.54 31.00
9 26 34 44 36 36 41 49 40 41 43 44 42 56 48 47 40 48 45 51 44 50 48 50 49 47 48 38 45 33 48 ~ 43.58 55.93 30.00
10 30 28 32 34 37 30 39 33 30 33 33 33 39 35 34 25 35 54 50 41 41 47 42 44 69 47 34 52 46 50 39 39.30 69.39 31.00
11 57 43 45 52 55 47 43 57 63 57 55 70 54 34 47 36 39 42 61 32 46 53 37 43 133 117 60 59 52 54 ~ 54.94 133.05 30.00
12 38 43 30 30 24 30 31 33 43 71 42 31 36 27 ~ 22 25 20 26 31 40 91 45 18 20 18 21 21 29 23 31 33.03 90.82 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. 41 46 1 1 0 0 0 0 89 48 2 1 0 0 0 0 116
REL. 46.0 51.6 1.1 1.1 0.0 0.0 0.0 0.0 100.0 53.9 2.2 1.1 0.0 0.0 0.0 0.06.1
ID 46 51 1 2 0 0 0 0 101
ABS. 71 20 0 0 0 0 0 0 91 20 0 0 0 0 0 0 55
REL. 78.0 21.9 0.0 0.0 0.0 0.0 0.0 0.0 100.0 22.0 0.0 0.0 0.0 0.0 0.0 0.0 29.5
ID 78 21 0 0 0 0 0 0 100
ABS. 42 50 0 0 0 0 0 0 92 50 0 0 0 0 0 0 56
REL. 45.6 54.3 0.0 0.0 0.0 0.0 0.0 0.0100.0 54.3 0.0 0.0 0.0 0.0 0.0 0.0 13.9
ID 45 54 0 0 0 0 0 0 100
ABS. 32 53 4 2 0 0 0 0 91 59 6 2 0 0 0 0 133
REL 35.1 58.2 4.3 2.1 0.0 0.0 0.0 0.0100.0 64.8 6.6 2.2 0.0 0.0 0.0 0.025.11
ID 35 58 4 4 0 0 0 0 102
Year
ABS. 186 169 5 3 0 0 0 0 363 177 8 3 0 0 0 0 133
REL. 51.2 46.5 1.3 0.8 0.0 0.0 0.0 0.0100.0 48.8 2.2 0.8 0.0 0.0 0.0 0.025.11
ID 51 46 1 1 0 0 0 0 100

Note:

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