Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1011 - Usti n.L.-Kockov
Code:CZULCMUNK
Institution:CHMI
Region:Severocesky
District:Usti nad Labem
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 82 32 18 19 19 21 38 20 22 36 109 78 97 107 86 51 22 21 35 24 17 17 16 29 20 43 148 85 40 46 12 45.52 148.26 31.00
2 30 59 36 48 87 80 55 29 66 76 62 25 29 28 28 37 19 46 52 43 44 50 25 34 21 35 30 16 ~ ~ ~ 42.39 86.61 28.00
3 17 28 31 22 14 31 22 11 11 15 22 36 18 9 21 20 14 14 10 7.88 8.10 7.77 9 10 16 26 44 23 20 27 48 19.82 48.22 31.00
4 58 29 26 24 17 28 ~ 21 25 13 16 8.41 8.84 22 20 22 14 12 13 29 29 21 17 29 19 14 12 15 11 11 ~ 20.10 57.84 29.00
5 9 17 14 10 19 29 29 16 12 10 8.18 10 9 13 7.18 7.23 6.43 10 11 14 10 9 13 19 23 33 22 11 11 13 27 14.64 33.16 31.00
6 24 23 33 21 15 13 14 26 29 22 17 12 7.03 12 28 19 17 17 22 11 16 16 16 22 12 12 18 14 17 18 ~ 18.07 33.05 30.00
7 18 12 14 12 13 15 14 10 17 14 14 20 15 15 22 20 21 15 12 18 13 15 16 11 8.58 9 20 17 23 18 15 15.30 23.20 31.00
8 12 12 15 21 14 18 18 19 9 19 32 28 17 20 19 17 25 20 16 28 24 14 16 17 19 23 15 17 10 14 18 18.22 32.28 31.00
9 ~ ~ 13 15 13 24 20 34 20 24 20 16 16 20 19 25 23 12 10 8.22 8.58 12 14 28 40 48 64 52 20 11 ~ 22.53 63.71 28.00
10 13 13 11 12 14 17 18 34 37 19 21 24 19 38 22 30 19 10 42 24 34 41 26 20 14 17 20 13 18 17 21 21.86 41.74 31.00
11 13 29 43 27 26 19 25 57 90 98 20 61 55 30 26 17 14 20 17 12 14 32 38 115 75 73 91 82 23 29 ~ 42.30 114.59 30.00
12 24 30 47 44 19 16 17 23 86 154 63 95 31 50 65 28 70 93 39 15 15 45 59 35 26 23 29 38 59 28 17 44.68 154.43 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. 55 24 8 3 0 0 0 0 90 35 11 3 0 0 0 0 148
REL. 61.1 26.6 8.8 3.3 0.0 0.0 0.0 0.0 100.0 38.9 12.2 3.3 0.0 0.0 0.0 0.027.1
ID 61 26 8 6 0 0 0 0 103
ABS. 89 1 0 0 0 0 0 0 90 1 0 0 0 0 0 0 58
REL. 98.8 1.1 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 1.4
ID 98 1 0 0 0 0 0 0 100
ABS. 85 5 0 0 0 0 0 0 90 5 0 0 0 0 0 0 64
REL. 94.4 5.5 0.0 0.0 0.0 0.0 0.0 0.0100.0 5.6 0.0 0.0 0.0 0.0 0.0 0.0 27.9
ID 94 5 0 0 0 0 0 0 100
ABS. 58 22 10 1 1 0 0 0 92 34 12 2 1 0 0 0 154
REL 63.0 23.9 10.8 1.0 1.0 0.0 0.0 0.0100.0 37.0 13.0 2.2 1.1 0.0 0.0 0.010.12
ID 63 23 10 2 5 0 0 0 105
Year
ABS. 287 52 18 4 1 0 0 0 362 75 23 5 1 0 0 0 154
REL. 79.2 14.3 4.9 1.1 0.2 0.0 0.0 0.0100.0 20.7 6.4 1.4 0.3 0.0 0.0 0.010.12
ID 79 14 4 2 1 0 0 0 102

Note:

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