Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1010 - Chabarovice
Code:CZULCMCHA
Institution:CHMI
Region:Severocesky
District:Usti nad Labem
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 108 45 38 17 23 25 86 19 21 57 160 168 128 173 112 119 36 33 47 30 16 18 23 33 23 59 150 109 61 55 18 64.79 172.58 31.00
2 27 89 36 70 145 156 73 36 ~ ~ 90 23 26 24 26 63 22 60 58 54 69 54 33 57 37 69 35 16 ~ ~ ~ 55.66 155.79 26.00
3 18 42 49 27 15 37 25 9 12 22 24 37 ~ ~ ~ 21 15 16 12 10 8.58 11 19 30 35 ~ 63 27 34 40 86 27.56 85.68 27.00
4 67 43 32 26 35 41 31 34 39 25 23 9 17 32 23 41 24 12 19 40 32 29 28 32 20 18 19 20 18 16 ~ 28.22 67.33 30.00
5 12 16 15 9 30 34 41 22 18 21 20 17 17 19 22 12 14 27 18 17 17 11 12 20 29 44 33 20 18 17 25 20.86 43.61 31.00
6 20 28 33 22 19 17 15 27 31 28 25 16 8.46 13 31 20 22 21 28 14 21 18 14 25 20 21 23 15 21 18 ~ 21.15 33.09 30.00
7 22 18 16 8.20 8.73 12 17 12 18 18 11 23 18 14 27 30 27 16 15 23 15 18 25 20 11 15 27 20 31 23 21 18.67 31.00 31.00
8 13 12 16 20 17 23 26 20 15 28 48 29 21 26 22 19 32 19 23 36 26 8.74 16 20 21 28 19 22 12 18 27 22.02 48.32 31.00
9 29 27 24 23 15 24 29 37 23 29 27 ~ ~ ~ 32 38 38 22 20 20 33 31 30 39 43 68 74 76 40 32 ~ 34.25 75.81 27.00
10 25 22 15 21 24 27 40 42 53 25 27 38 31 86 38 48 36 22 48 38 64 80 70 31 21 33 29 15 24 23 27 36.24 85.82 31.00
11 14 38 64 37 37 26 38 76 97 135 28 75 52 32 30 30 17 26 33 15 21 64 146 163 89 77 103 102 35 43 ~ 58.12 163.14 30.00
12 25 59 38 45 21 13 18 29 129 170 57 98 34 76 109 26 125 178 67 17 21 58 60 43 41 31 47 36 73 27 16 57.57 178.23 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. 39 26 8 7 4 0 0 0 84 45 19 11 4 0 0 0 173
REL. 46.4 30.9 9.5 8.3 4.7 0.0 0.0 0.0 100.0 53.6 22.6 13.1 4.8 0.0 0.0 0.014.1
ID 46 30 9 16 23 0 0 0 127
ABS. 80 10 1 0 0 0 0 0 91 11 1 0 0 0 0 0 67
REL. 87.9 10.9 1.0 0.0 0.0 0.0 0.0 0.0 100.0 12.1 1.1 0.0 0.0 0.0 0.0 0.0 1.4
ID 87 10 1 0 0 0 0 0 100
ABS. 77 9 3 0 0 0 0 0 89 12 3 0 0 0 0 0 76
REL. 86.5 10.1 3.3 0.0 0.0 0.0 0.0 0.0100.0 13.5 3.4 0.0 0.0 0.0 0.0 0.0 28.9
ID 86 10 3 0 0 0 0 0 100
ABS. 39 31 12 7 3 0 0 0 92 53 22 10 3 0 0 0 178
REL 42.3 33.6 13.0 7.6 3.2 0.0 0.0 0.0100.0 57.6 23.9 10.9 3.3 0.0 0.0 0.018.12
ID 42 33 13 15 16 0 0 0 120
Year
ABS. 235 76 24 14 7 0 0 0 356 121 45 21 7 0 0 0 178
REL. 66.0 21.3 6.7 3.9 1.9 0.0 0.0 0.0100.0 34.0 12.6 5.9 2.0 0.0 0.0 0.018.12
ID 66 21 6 7 9 0 0 0 111

Note:

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