Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NO2-nitrogen dioxide
Station: 576 - Decin-OHS
Code:CZDCHSDPS
Institution:Public Health Service
Region:Severocesky
District:Decin
IHd: 150
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 52 44 39 42 55 53 64 57 59 54 49 48 43 48 60 64 57 37 58 58 50 40 52 41 50 64 85 78 70 70 60 54.88 85.16 31.00
2 47 73 70 86 97 100 61 55 79 93 94 54 64 61 60 60 65 69 64 73 62 63 67 70 63 64 47 37 ~ ~ ~ 67.80 100.19 28.00
3 38 55 60 59 44 67 50 39 67 65 52 64 59 46 50 64 56 57 56 56 41 37 60 75 87 86 88 ~ 50 70 95 59.69 95.32 30.00
4 104 78 64 50 41 78 56 65 68 52 53 41 46 69 55 72 59 56 46 77 77 71 64 79 48 37 38 60 49 60 ~ 60.47 104.08 30.00
5 40 42 51 64 76 71 66 52 50 47 64 75 66 77 74 54 46 76 84 78 61 62 50 52 62 62 52 59 57 44 44 59.97 84.35 31.00
6 58 70 68 81 71 44 39 57 63 64 59 61 41 38 64 64 63 60 58 42 44 ~ ~ ~ ~ 51 37 30 48 42 ~ 54.53 81.43 26.00
7 43 14 27 17 15 17 23 26 36 28 21 22 22 24 30 26 30 21 ~ 29 23 31 24 27 20 18 33 ~ 28 20 26 24.88 43.35 29.00
8 22 20 24 24 22 25 31 24 20 29 45 45 36 34 28 28 41 50 34 37 34 19 22 28 31 33 31 33 23 30 35 30.31 49.88 31.00
9 30 33 27 27 25 26 26 30 25 31 33 29 25 27 33 33 33 33 28 24 32 38 32 35 37 31 29 40 31 30 ~ 30.45 39.59 30.00
10 27 28 23 23 29 25 25 27 25 25 29 36 34 32 31 32 24 24 32 35 34 41 38 25 27 41 35 20 37 32 30 29.86 41.21 31.00
11 25 41 43 43 36 36 36 36 41 44 44 43 36 32 32 39 36 47 44 45 35 46 57 ~ ~ ~ ~ ~ ~ ~ ~ 39.86 57.10 23.00
12 ~ ~ ~ ~ 75 57 74 92 117 112 85 76 60 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 83.10 117.06 9.00

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- 50 51- 100 101- 150 151- 225 226- 300 301- 450 451- 600 over 600 50 100 150 225 300 450 600
ABS. 23 65 1 0 0 0 0 0 89 66 1 0 0 0 0 0 100
REL. 25.8 73.0 1.1 0.0 0.0 0.0 0.0 0.0 100.0 74.2 1.1 0.0 0.0 0.0 0.0 0.06.2
ID 25 73 1 0 0 0 0 0 100
ABS. 25 61 1 0 0 0 0 0 87 62 1 0 0 0 0 0 104
REL. 28.7 70.1 1.1 0.0 0.0 0.0 0.0 0.0 100.0 71.3 1.1 0.0 0.0 0.0 0.0 0.0 1.4
ID 28 70 1 0 0 0 0 0 100
ABS. 90 0 0 0 0 0 0 0 90 0 0 0 0 0 0 0 50
REL.100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18.8
ID 100 0 0 0 0 0 0 0 100
ABS. 53 8 2 0 0 0 0 0 63 10 2 0 0 0 0 0 117
REL 84.1 12.6 3.1 0.0 0.0 0.0 0.0 0.0100.0 15.9 3.2 0.0 0.0 0.0 0.0 0.0 9.12
ID 84 12 3 0 0 0 0 0 100
Year
ABS. 191 134 4 0 0 0 0 0 329 138 4 0 0 0 0 0 117
REL. 58.0 40.7 1.2 0.0 0.0 0.0 0.0 0.0100.0 41.9 1.2 0.0 0.0 0.0 0.0 0.0 9.12
ID 58 40 1 0 0 0 0 0 100

Note:

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