Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
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 37 40 66 102 43 63 95 71 50 36 66 43 21 38 30 37 12 10 16 28 15 33 21 52 69 76 36 74 29 16 21 43.36 102.38 31.00
2 56 48 16 37 26 55 69 30 12 25 28 43 17 ~ 52 35 35 35 62 13 28 80 48 69 38 25 27 30 36 ~ ~ 38.46 79.93 28.00
3 21 23 23 6.28 13 35 36 30 10 25 16 22 60 44 14 14 12 17 14 31 26 88 63 68 45 32 15 24 18 20 34 28.92 88.48 31.00
4 41 35 30 39 20 12 14 18 25 29 32 43 30 40 28 27 27 39 33 33 26 19 14 9 17 24 20 15 14 14 ~ 25.55 43.00 30.00
5 23 21 27 24 21 14 10 16 21 22 21 16 15 21 23 26 22 26 27 16 18 18 23 27 20 19 23 21 19 20 15 20.40 27.26 31.00
6 27 20 17 22 17 17 19 20 17 15 10 16 18 16 13 10 13 20 24 21 26 16 25 16 9 10 16 15 19 ~ ~ 17.42 26.66 29.00
7 18 20 28 23 11 11 11 6.78 13 23 22 12 24 28 8.72 8.23 18 20 11 16 17 12 15 32 22 23 24 16 8.56 14 21 17.45 31.53 31.00
8 25 25 17 23 11 11 ~ 25 21 ~ 16 18 25 26 33 23 30 42 23 16 18 19 24 24 17 10 20 29 29 28 21 22.38 41.76 29.00
9 ~ 16 10 17 24 29 25 43 25 21 24 38 36 30 22 24 18 22 28 25 24 31 22 29 42 38 58 34 23 19 ~ 27.47 57.52 29.00
10 17 32 28 38 45 18 10 21 24 25 43 60 ~ ~ ~ ~ ~ 45 58 37 19 49 77 55 68 48 34 40 33 55 55 39.70 76.59 26.00
11 58 60 48 29 33 19 73 61 80 57 47 28 62 65 78 70 38 ~ ~ ~ ~ 74 87 89 51 38 46 75 ~ ~ ~ 57.00 88.73 24.00
12 ~ 71 56 52 33 28 24 70 70 43 72 94 65 53 30 18 16 96 92 101 41 32 75 97 42 61 52 74 102 85 19 58.77 101.92 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. 46 33 10 1 0 0 0 0 90 44 11 1 0 0 0 0 102
REL. 51.1 36.6 11.1 1.1 0.0 0.0 0.0 0.0 100.0 48.9 12.2 1.1 0.0 0.0 0.0 0.04.1
ID 51 36 11 2 0 0 0 0 101
ABS. 83 7 0 0 0 0 0 0 90 7 0 0 0 0 0 0 43
REL. 92.2 7.7 0.0 0.0 0.0 0.0 0.0 0.0 100.0 7.8 0.0 0.0 0.0 0.0 0.0 0.0 12.4
ID 92 7 0 0 0 0 0 0 100
ABS. 81 8 0 0 0 0 0 0 89 8 0 0 0 0 0 0 58
REL. 91.0 8.9 0.0 0.0 0.0 0.0 0.0 0.0100.0 9.0 0.0 0.0 0.0 0.0 0.0 0.0 27.9
ID 91 8 0 0 0 0 0 0 100
ABS. 22 35 21 2 0 0 0 0 80 58 23 2 0 0 0 0 102
REL 27.5 43.7 26.2 2.5 0.0 0.0 0.0 0.0100.0 72.5 28.8 2.5 0.0 0.0 0.0 0.029.12
ID 27 43 26 5 0 0 0 0 102
Year
ABS. 232 83 31 3 0 0 0 0 349 117 34 3 0 0 0 0 102
REL. 66.4 23.7 8.8 0.8 0.0 0.0 0.0 0.0100.0 33.5 9.7 0.9 0.0 0.0 0.0 0.0 4.1
ID 66 23 8 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