Detailed overview of ambient air pollution valuis from individual stations


Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1011 - Usti n.L.-Kockov
Code:CZULCMUNK
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 15 9 13 72 125 77 22 50 113 114 97 87 51 63 41 47 60 62 54 20 29 33 33 27 21 19 14 23 25 31 33 47.74 125.46 31.00
2 34 32 31 56 49 58 33 28 26 17 23 15 15 6.91 15 11 32 44 24 28 15 31 12 15 45 26 20 21 ~ ~ ~ 27.18 57.74 28.00
3 16 15 14 31 40 49 14 27 46 20 35 41 46 12 20 35 31 44 29 24 25 12 9 7.47 11 10 13 20 26 30 26 25.24 49.25 31.00
4 21 24 11 14 11 10 8.86 15 14 13 15 13 17 17 24 21 43 32 23 15 13 16 27 16 29 27 16 19 23 26 ~ 19.14 43.43 30.00
5 17 13 14 15 22 18 12 12 11 11 13 10 16 23 15 22 22 12 11 9 11 11 13 19 14 16 15 15 12 11 13 14.46 23.50 31.00
6 8.24 8.73 13 13 7.53 7.34 8.44 10 12 15 16 23 18 15 25 10 20 16 13 11 14 15 12 9 14 24 17 11 9 16 ~ 13.69 25.23 30.00
7 19 22 17 18 12 10 14 14 11 11 22 12 10 8.11 11 9 23 18 11 8.48 13 14 21 14 16 31 13 10 14 14 16 14.76 31.30 31.00
8 25 16 18 12 16 15 11 15 15 11 8.13 12 8.72 8.38 10 9 11 11 11 15 13 16 19 12 11 9 11 25 20 19 19 13.93 25.07 31.00
9 11 9 11 21 22 19 19 12 11 12 13 11 17 16 9 18 17 19 24 29 16 15 11 8.43 21 26 10 15 22 53 ~ 17.21 53.43 30.00
10 43 46 55 15 17 12 13 15 9 16 13 14 16 59 37 41 21 22 18 25 61 76 26 30 34 16 18 15 31 25 34 28.22 75.87 31.00
11 50 17 14 19 14 32 46 37 18 29 36 39 49 54 109 40 24 44 17 35 35 46 35 24 39 62 26 42 41 37 ~ 36.95 109.31 30.00
12 26 35 29 37 22 17 18 14 18 20 31 37 48 34 27 50 50 21 46 85 97 38 24 23 26 25 37 48 46 18 14 34.15 96.55 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. 61 22 4 3 0 0 0 0 90 29 7 3 0 0 0 0 125
REL. 67.7 24.4 4.4 3.3 0.0 0.0 0.0 0.0 100.0 32.2 7.8 3.3 0.0 0.0 0.0 0.05.1
ID 67 24 4 6 0 0 0 0 103
ABS. 90 1 0 0 0 0 0 0 91 1 0 0 0 0 0 0 43
REL. 98.9 1.0 0.0 0.0 0.0 0.0 0.0 0.0 100.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 17.4
ID 98 1 0 0 0 0 0 0 100
ABS. 91 1 0 0 0 0 0 0 92 1 0 0 0 0 0 0 53
REL. 98.9 1.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 30.9
ID 98 1 0 0 0 0 0 0 100
ABS. 49 39 3 1 0 0 0 0 92 43 4 1 0 0 0 0 109
REL 53.2 42.3 3.2 1.0 0.0 0.0 0.0 0.0100.0 46.7 4.3 1.1 0.0 0.0 0.0 0.015.11
ID 53 42 3 2 0 0 0 0 101
Year
ABS. 291 63 7 4 0 0 0 0 365 74 11 4 0 0 0 0 125
REL. 79.7 17.2 1.9 1.0 0.0 0.0 0.0 0.0100.0 20.3 3.0 1.1 0.0 0.0 0.0 0.0 5.1
ID 79 17 1 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