Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1010 - Chabarovice
Code:CZULCMCHA
Institution:Czech Hydrometeorological Institute
Region:Ustecky
District:Usti nad Labem
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 24 26 72 60 75 50 81 73 73 102 48 39 30 63 66 46 25 43 57 33 19 22 27 37 79 62 34 34 38 35 21 48.25 102.50 31.00
2 17 25 34 57 105 81 50 81 62 22 71 ~ ~ 34 66 101 15 10 16 8.94 13 7.90 15 16 56 70 38 26 ~ ~ ~ 42.29 104.88 26.00
3 69 55 27 41 20 32 27 24 69 30 32 36 23 24 53 82 19 36 15 13 27 40 35 36 15 10 15 20 28 42 31 33.09 82.14 31.00
4 37 33 41 18 22 51 20 16 28 43 24 13 9 10 30 19 28 28 26 17 8.36 7.59 27 32 26 28 28 26 21 19 ~ 24.60 51.07 30.00
5 14 14 16 15 8.00 7.02 10 20 18 19 12 10 17 18 30 24 30 17 10 13 13 15 20 22 14 16 15 24 18 16 16 16.47 30.35 31.00
6 16 18 6.84 13 23 42 24 24 13 11 15 22 24 30 23 ~ ~ 10 11 16 32 15 8.39 14 17 18 23 18 17 12 ~ 18.47 41.59 28.00
7 7.14 15 16 14 12 10 11 15 19 21 26 20 25 24 8.57 12 14 25 24 14 11 15 15 14 11 18 17 19 15 19 16 16.19 25.89 31.00
8 14 21 30 13 16 25 29 33 31 20 9 27 42 34 20 18 14 12 32 14 12 16 23 26 26 29 24 12 17 23 49 22.95 48.58 31.00
9 17 15 33 23 17 18 20 12 12 21 21 23 52 32 27 18 22 29 25 31 38 25 22 27 22 36 ~ ~ ~ ~ ~ 24.54 51.65 26.00
10 ~ ~ ~ 32 44 33 30 59 45 40 32 52 61 52 47 97 54 37 46 28 32 35 32 44 82 32 19 43 33 43 59 44.45 96.98 28.00
11 12 26 29 43 32 57 41 31 13 40 60 85 31 60 69 33 44 53 30 35 74 36 11 15 52 76 73 71 57 34 ~ 44.12 84.63 30.00
12 20 41 32 51 102 49 17 18 47 95 41 14 25 59 42 10 15 30 31 18 46 28 26 43 29 22 29 27 22 14 11 34.00 102.12 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. 40 32 13 3 0 0 0 0 88 48 16 3 0 0 0 0 105
REL. 45.4 36.3 14.7 3.4 0.0 0.0 0.0 0.0 100.0 54.5 18.2 3.4 0.0 0.0 0.0 0.05.2
ID 45 36 14 6 0 0 0 0 103
ABS. 84 5 0 0 0 0 0 0 89 5 0 0 0 0 0 0 51
REL. 94.3 5.6 0.0 0.0 0.0 0.0 0.0 0.0 100.0 5.6 0.0 0.0 0.0 0.0 0.0 0.0 6.4
ID 94 5 0 0 0 0 0 0 100
ABS. 82 6 0 0 0 0 0 0 88 6 0 0 0 0 0 0 52
REL. 93.1 6.8 0.0 0.0 0.0 0.0 0.0 0.0100.0 6.8 0.0 0.0 0.0 0.0 0.0 0.0 13.9
ID 93 6 0 0 0 0 0 0 100
ABS. 40 39 9 1 0 0 0 0 89 49 10 1 0 0 0 0 102
REL 44.9 43.8 10.1 1.1 0.0 0.0 0.0 0.0100.0 55.1 11.2 1.1 0.0 0.0 0.0 0.0 5.12
ID 44 43 10 2 0 0 0 0 101
Year
ABS. 246 82 22 4 0 0 0 0 354 108 26 4 0 0 0 0 105
REL. 69.4 23.1 6.2 1.1 0.0 0.0 0.0 0.0100.0 30.5 7.3 1.1 0.0 0.0 0.0 0.0 5.2
ID 69 23 6 2 0 0 0 0 101

Note:

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