Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 637 - Lovosice-MU
Code:CZLTHSLOM
Institution:Public Health Service
Region:Severocesky
District:Litomerice
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 18 34 21 19 12 14 54 44 19 46 36 47 54 58 61 70 18 28 23 46 20 11 22 21 19 ~ ~ 52 41 38 19 33.28 70.00 29.00
2 30 60 31 123 98 79 ~ 94 58 105 74 45 31 18 25 28 34 72 61 72 61 47 33 62 51 57 33 14 ~ ~ ~ 55.41 123.00 27.00
3 21 36 30 26 18 34 15 16 24 29 41 35 40 22 44 45 17 19 28 10 8.00 9.00 12 18 23 16 37 21 24 33 45 25.68 45.00 31.00
4 45 32 35 23 22 34 23 24 22 19 17 6.00 13 50 44 23 19 6.00 9.00 43 32 45 37 25 22 12 17 27 14 ~ ~ 25.52 50.00 29.00
5 ~ 11 11 9.00 22 8.00 23 25 16 22 28 23 31 8.00 5.00 5.00 7.00 16 11 ~ 15 13 14 22 23 31 39 30 26 12 19 18.10 39.00 29.00
6 29 31 33 22 30 20 18 37 40 27 28 37 8.00 10 27 25 23 27 34 17 24 9.00 18 18 18 4.00 17 18 28 6.00 ~ 22.77 40.00 30.00
7 6.00 25 4.00 12 13 11 18 16 29 21 7.00 17 19 28 26 27 35 11 17 19 25 25 64 36 22 15 35 26 32 33 ~ 22.47 64.00 30.00
8 ~ ~ 33 44 22 35 35 42 39 40 45 33 36 81 56 46 46 30 26 42 33 13 15 21 20 26 20 10 18 19 27 32.86 81.00 29.00
9 34 30 19 15 7.00 17 30 37 29 25 26 17 17 36 27 21 24 21 16 8.00 18 30 112 40 57 31 36 32 57 34 ~ 30.10 112.00 30.00
10 28 13 9.00 7.00 20 6.00 31 37 31 19 19 30 29 32 64 48 35 12 37 35 47 ~ 45 22 ~ 25 20 4.00 30 53 60 29.24 64.00 29.00
11 41 37 28 55 21 18 24 41 42 51 18 49 28 20 16 11 4.00 19 14 33 13 33 63 102 51 40 ~ ~ ~ ~ ~ 33.54 102.00 26.00
12 ~ ~ 71 71 32 17 22 40 110 130 77 62 13 76 109 45 125 136 49 26 38 69 64 41 39 35 52 50 69 56 20 60.14 136.00 29.00

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 32 7 2 0 0 0 0 87 41 9 2 0 0 0 0 123
REL. 52.8 36.7 8.0 2.2 0.0 0.0 0.0 0.0 100.0 47.1 10.3 2.3 0.0 0.0 0.0 0.04.2
ID 52 36 8 4 0 0 0 0 102
ABS. 75 13 0 0 0 0 0 0 88 13 0 0 0 0 0 0 50
REL. 85.2 14.7 0.0 0.0 0.0 0.0 0.0 0.0 100.0 14.8 0.0 0.0 0.0 0.0 0.0 0.0 14.4
ID 85 14 0 0 0 0 0 0 100
ABS. 63 24 1 1 0 0 0 0 89 26 2 1 0 0 0 0 112
REL. 70.7 26.9 1.1 1.1 0.0 0.0 0.0 0.0100.0 29.2 2.2 1.1 0.0 0.0 0.0 0.0 23.9
ID 70 26 1 2 0 0 0 0 101
ABS. 40 32 6 6 0 0 0 0 84 44 12 6 0 0 0 0 136
REL 47.6 38.0 7.1 7.1 0.0 0.0 0.0 0.0100.0 52.4 14.3 7.1 0.0 0.0 0.0 0.018.12
ID 47 38 7 14 0 0 0 0 107
Year
ABS. 224 101 14 9 0 0 0 0 348 124 23 9 0 0 0 0 136
REL. 64.3 29.0 4.0 2.5 0.0 0.0 0.0 0.0100.0 35.6 6.6 2.6 0.0 0.0 0.0 0.018.12
ID 64 29 4 5 0 0 0 0 102

Note:

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