Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1025 - Litomerice-Mlekojedy
Code:CZLTCMLIM
Institution:CHMI
Region:Severocesky
District:Litomerice
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 41 38 20 14 19 19 58 23 25 84 51 63 48 57 61 66 16 ~ ~ 21 19 19 17 23 38 104 95 76 71 56 18 43.46 104.33 29.00
2 30 55 34 98 133 158 59 25 69 100 77 37 27 23 37 43 27 75 57 93 79 65 34 54 52 82 ~ ~ ~ ~ ~ 62.45 157.55 26.00
3 ~ ~ ~ 39 23 39 40 25 31 33 29 31 27 14 30 38 21 22 17 17 16 19 24 27 39 48 35 22 38 58 96 32.05 95.57 28.00
4 60 45 33 31 33 34 22 28 32 16 24 6.65 20 20 20 37 20 14 20 51 55 34 28 32 19 20 16 17 15 16 ~ 27.22 60.24 30.00
5 18 19 32 19 31 43 49 43 26 49 38 29 28 24 20 14 22 31 23 19 21 15 20 27 23 38 19 ~ ~ ~ ~ 27.47 49.29 27.00
6 ~ ~ ~ 66 ~ ~ ~ ~ ~ 19 ~ 13 7.02 16 19 14 14 12 20 10 18 12 14 22 20 17 15 17 20 17 ~ 18.12 66.47 21.00
7 16 22 15 10 13 13 16 11 16 16 15 22 15 18 19 20 17 18 25 30 16 23 15 15 10 28 23 17 19 16 24 17.86 30.48 31.00
8 11 ~ 23 16 17 29 24 20 24 36 31 26 24 41 29 24 32 19 29 29 17 12 15 16 20 20 15 15 14 19 26 22.43 40.69 30.00
9 41 23 15 14 12 23 27 28 21 20 18 20 21 20 23 30 26 24 25 16 26 37 49 65 68 49 70 62 60 30 ~ 32.06 70.03 30.00
10 20 22 14 20 24 26 33 38 44 26 23 28 29 ~ ~ ~ ~ ~ 66 35 48 50 42 21 19 29 26 20 23 21 23 29.63 66.34 26.00
11 16 31 37 26 32 28 43 62 70 105 24 57 34 25 40 38 17 23 28 17 22 56 111 170 60 57 72 76 25 51 ~ 48.50 169.68 30.00
12 28 74 69 40 21 15 17 26 86 122 67 50 21 83 179 32 149 185 57 21 33 57 52 27 29 24 40 36 82 95 16 59.18 185.20 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. 35 32 13 2 1 0 0 0 83 48 16 3 1 0 0 0 158
REL. 42.1 38.5 15.6 2.4 1.2 0.0 0.0 0.0 100.0 57.8 19.3 3.6 1.2 0.0 0.0 0.06.2
ID 42 38 15 4 6 0 0 0 107
ABS. 64 14 0 0 0 0 0 0 78 14 0 0 0 0 0 0 66
REL. 82.0 17.9 0.0 0.0 0.0 0.0 0.0 0.0 100.0 17.9 0.0 0.0 0.0 0.0 0.0 0.0 4.6
ID 82 17 0 0 0 0 0 0 100
ABS. 80 9 2 0 0 0 0 0 91 11 2 0 0 0 0 0 70
REL. 87.9 9.8 2.1 0.0 0.0 0.0 0.0 0.0100.0 12.1 2.2 0.0 0.0 0.0 0.0 0.0 27.9
ID 87 9 2 0 0 0 0 0 100
ABS. 44 26 10 4 3 0 0 0 87 43 17 7 3 0 0 0 185
REL 50.5 29.8 11.4 4.5 3.4 0.0 0.0 0.0100.0 49.4 19.5 8.0 3.4 0.0 0.0 0.018.12
ID 50 29 11 9 17 0 0 0 118
Year
ABS. 223 81 25 6 4 0 0 0 339 116 35 10 4 0 0 0 185
REL. 65.7 23.8 7.3 1.7 1.1 0.0 0.0 0.0100.0 34.2 10.3 2.9 1.2 0.0 0.0 0.018.12
ID 65 23 7 3 5 0 0 0 106

Note:

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