Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1010 - Chabarovice
Code:CZULCMCHA
Institution:Czech Hydrometeorological Institute
Region:Severocesky
District:Usti nad Labem
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 17 28 31 65 77 128 57 71 30 16 32 41 48 55 44 59 37 122 67 98 125 91 76 92 90 39 73 50 12 10 33 58.44 127.79 31.00
2 107 58 52 26 8.90 9 19 40 61 102 43 15 12 25 98 44 11 24 75 42 34 22 16 25 36 111 83 53 ~ ~ ~ 44.74 110.59 28.00
3 45 ~ 49 46 53 28 40 35 64 60 17 30 28 45 19 20 33 42 35 14 26 35 23 48 39 41 18 11 26 35 38 34.79 63.81 30.00
4 34 29 20 22 25 37 18 17 26 26 25 28 27 24 25 17 9 20 32 35 47 40 27 18 21 21 19 18 29 29 ~ 25.59 46.54 30.00
5 19 15 19 14 13 16 15 26 25 21 22 27 21 19 6.20 12 17 14 18 17 24 13 18 25 16 17 22 20 14 20 16 18.13 27.15 31.00
6 19 23 23 23 12 13 41 23 23 18 13 10 12 15 18 19 16 13 13 18 10 11 18 26 18 16 14 26 25 21 ~ 18.47 40.97 30.00
7 23 21 15 12 8.87 13 17 17 13 11 11 17 25 23 20 19 17 19 21 35 22 21 12 10 18 15 17 20 23 19 12 17.66 34.90 31.00
8 18 21 24 26 38 21 24 20 34 41 20 20 23 21 16 22 23 27 26 18 7.07 16 26 25 27 26 23 10 21 25 30 23.15 41.02 31.00
9 13 18 24 16 17 34 37 33 40 30 18 32 38 44 38 44 32 25 15 19 44 46 49 36 50 41 47 52 37 41 ~ 33.61 51.71 30.00
10 31 22 31 43 36 29 32 48 16 19 24 34 52 25 30 18 21 41 41 29 26 24 29 25 63 42 24 47 34 36 39 32.63 62.61 31.00
11 69 56 32 51 38 29 51 60 25 22 23 34 25 14 35 41 69 48 37 35 27 46 62 93 159 132 96 64 38 75 ~ 52.92 159.15 30.00
12 49 21 36 33 13 45 43 36 86 87 38 24 25 65 20 30 46 23 18 16 41 78 51 17 23 27 33 18 28 28 39 36.71 86.81 31.00

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. 32 39 12 6 0 0 0 0 89 57 18 6 0 0 0 0 128
REL. 35.9 43.8 13.4 6.7 0.0 0.0 0.0 0.0 100.0 64.0 20.2 6.7 0.0 0.0 0.0 0.06.1
ID 35 43 13 13 0 0 0 0 106
ABS. 85 6 0 0 0 0 0 0 91 6 0 0 0 0 0 0 47
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 21.4
ID 93 6 0 0 0 0 0 0 100
ABS. 71 21 0 0 0 0 0 0 92 21 0 0 0 0 0 0 52
REL. 77.1 22.8 0.0 0.0 0.0 0.0 0.0 0.0100.0 22.8 0.0 0.0 0.0 0.0 0.0 0.0 28.9
ID 77 22 0 0 0 0 0 0 100
ABS. 43 39 8 1 1 0 0 0 92 49 10 2 1 0 0 0 159
REL 46.7 42.3 8.6 1.0 1.0 0.0 0.0 0.0100.0 53.3 10.9 2.2 1.1 0.0 0.0 0.025.11
ID 46 42 8 2 5 0 0 0 105
Year
ABS. 231 105 20 7 1 0 0 0 364 133 28 8 1 0 0 0 159
REL. 63.4 28.8 5.4 1.9 0.2 0.0 0.0 0.0100.0 36.5 7.7 2.2 0.3 0.0 0.0 0.025.11
ID 63 28 5 3 1 0 0 0 103

Note:

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