Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 929 - Litvinov
Code:CZMOHSLIT
Institution:Public Health Service
Region:Severocesky
District:Most
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 11 21 38 47 55 100 57 36 19 13 20 27 42 36 26 47 63 76 63 66 104 97 63 55 68 29 36 34 8.00 10 20 44.74 104.00 31.00
2 55 31 29 26 6.00 3.00 16 22 57 57 55 13 9.00 12 65 36 9.00 15 57 54 24 13 10 13 17 59 66 39 ~ ~ ~ 31.00 66.00 28.00
3 36 68 45 48 24 23 23 29 46 54 16 45 44 48 19 15 37 46 38 11 17 26 17 36 47 54 26 13 12 35 29 33.13 68.00 31.00
4 32 37 20 20 14 34 20 12 17 17 12 22 18 12 27 17 6.00 13 12 27 46 30 30 20 13 29 20 13 24 25 ~ 21.30 46.00 30.00
5 20 9.00 28 12 10 10 18 26 17 32 19 18 14 15 7.00 6.00 17 11 9.00 25 14 12 8.00 24 20 16 27 29 15 19 18 16.94 32.00 31.00
6 18 30 14 18 16 8.00 27 21 18 19 12 10 9.00 10 10 10 16 9.00 7.00 12 9.00 8.00 11 25 19 19 13 19 21 22 ~ 15.33 30.00 30.00
7 14 16 17 17 15 7.00 10 12 7.00 5.00 11 14 18 14 10 12 14 21 24 24 18 13 11 7.00 11 12 8.00 10 11 14 11 13.16 24.00 31.00
8 8.00 15 21 20 26 19 21 14 22 22 19 13 14 20 9.00 15 13 20 15 17 7.00 5.00 22 27 25 31 33 13 7.00 20 28 18.10 33.00 31.00
9 9.00 10 28 21 8.00 21 28 24 30 33 24 23 38 43 41 38 33 22 14 14 24 35 35 38 35 22 33 36 28 25 ~ 27.10 43.00 30.00
10 22 27 31 26 16 18 24 34 17 8.00 22 25 36 19 26 20 17 33 26 29 25 32 27 30 72 50 22 48 47 68 45 30.39 72.00 31.00
11 85 107 27 87 52 46 43 56 41 27 33 68 41 13 30 49 69 41 40 44 23 40 50 84 145 99 ~ ~ 63 86 ~ 56.75 145.00 28.00
12 51 14 45 33 12 41 42 51 74 59 40 19 20 ~ ~ ~ 14 33 21 24 53 79 91 48 44 50 40 34 35 29 44 40.71 91.00 28.00

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. 43 41 5 1 0 0 0 0 90 47 6 1 0 0 0 0 104
REL. 47.7 45.5 5.5 1.1 0.0 0.0 0.0 0.0 100.0 52.2 6.7 1.1 0.0 0.0 0.0 0.021.1
ID 47 45 5 2 0 0 0 0 101
ABS. 88 3 0 0 0 0 0 0 91 3 0 0 0 0 0 0 46
REL. 96.7 3.2 0.0 0.0 0.0 0.0 0.0 0.0 100.0 3.3 0.0 0.0 0.0 0.0 0.0 0.0 21.4
ID 96 3 0 0 0 0 0 0 100
ABS. 83 9 0 0 0 0 0 0 92 9 0 0 0 0 0 0 43
REL. 90.2 9.7 0.0 0.0 0.0 0.0 0.0 0.0100.0 9.8 0.0 0.0 0.0 0.0 0.0 0.0 14.9
ID 90 9 0 0 0 0 0 0 100
ABS. 39 34 12 2 0 0 0 0 87 48 14 2 0 0 0 0 145
REL 44.8 39.0 13.7 2.2 0.0 0.0 0.0 0.0100.0 55.2 16.1 2.3 0.0 0.0 0.0 0.025.11
ID 44 39 13 4 0 0 0 0 102
Year
ABS. 253 87 17 3 0 0 0 0 360 107 20 3 0 0 0 0 145
REL. 70.2 24.1 4.7 0.8 0.0 0.0 0.0 0.0100.0 29.7 5.6 0.8 0.0 0.0 0.0 0.025.11
ID 70 24 4 1 0 0 0 0 100

Note:

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