Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 617 - Litomerice-OHS
Code:CZLTHSLOH
Institution:Public Health Service
Region:Ustecky
District:Litomerice
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 46 56 78 100 73 97 81 195 127 91 90 76 69 69 102 90 57 70 79 51 42 54 59 60 76 103 55 89 124 100 45 80.77 195.00 31.00
2 66 48 47 64 97 122 91 117 72 58 87 207 72 75 179 238 56 47 47 22 23 25 33 33 68 107 54 46 ~ ~ ~ 78.61 238.00 28.00
3 90 70 40 59 43 56 56 44 67 35 42 41 34 34 59 63 32 42 24 28 42 56 48 50 31 20 28 34 42 92 63 47.26 92.00 31.00
4 68 68 69 50 31 47 32 28 34 58 57 22 21 23 38 38 43 35 42 27 15 28 54 76 38 34 31 26 20 21 ~ 39.13 76.00 30.00
5 19 15 22 29 12 10 17 27 28 33 12 12 31 23 33 23 27 26 18 23 20 20 26 29 26 21 23 25 24 20 27 22.61 33.00 31.00
6 19 19 11 15 24 35 26 22 18 18 22 22 25 36 25 21 26 23 18 18 28 19 14 19 26 27 24 25 24 19 ~ 22.27 36.00 30.00
7 17 18 20 21 20 17 19 20 22 25 26 21 22 24 18 19 19 22 22 25 17 21 25 19 21 23 29 22 20 29 27 21.61 29.00 31.00
8 22 23 30 21 20 19 ~ 21 22 20 15 15 47 35 32 26 16 15 26 23 15 21 28 33 23 28 20 10 35 27 48 24.53 48.00 30.00
9 24 16 27 33 30 29 32 7.00 9.00 18 19 29 61 38 23 27 30 33 26 39 33 32 18 36 31 40 61 27 43 45 ~ 30.53 61.00 30.00
10 41 54 46 31 44 38 28 64 68 68 49 67 72 106 105 73 51 42 62 37 30 62 38 40 60 59 40 99 78 99 71 58.77 106.00 31.00
11 26 55 79 85 82 75 64 50 36 85 130 125 62 130 215 232 76 95 98 149 146 54 33 67 113 109 113 129 103 68 ~ 96.13 232.00 30.00
12 47 46 82 94 133 92 49 57 121 229 164 38 66 114 93 50 113 95 82 61 60 59 63 57 61 53 64 64 56 38 52 79.13 229.00 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. 11 41 27 7 2 2 0 0 90 79 38 11 4 2 0 0 238
REL. 12.2 45.5 30.0 7.7 2.2 2.2 0.0 0.0 100.0 87.8 42.2 12.2 4.4 2.2 0.0 0.016.2
ID 12 45 30 15 11 55 0 0 170
ABS. 72 15 4 0 0 0 0 0 91 19 4 0 0 0 0 0 76
REL. 79.1 16.4 4.3 0.0 0.0 0.0 0.0 0.0 100.0 20.9 4.4 0.0 0.0 0.0 0.0 0.0 24.4
ID 79 16 4 0 0 0 0 0 100
ABS. 79 12 0 0 0 0 0 0 91 12 0 0 0 0 0 0 61
REL. 86.8 13.1 0.0 0.0 0.0 0.0 0.0 0.0100.0 13.2 0.0 0.0 0.0 0.0 0.0 0.0 13.9
ID 86 13 0 0 0 0 0 0 100
ABS. 5 42 25 16 1 3 0 0 92 87 45 20 4 3 0 0 232
REL 5.4 45.6 27.1 17.3 1.0 3.2 0.0 0.0100.0 94.6 48.9 21.7 4.3 3.3 0.0 0.016.11
ID 5 45 27 34 5 81 0 0 200
Year
ABS. 167 110 56 23 3 5 0 0 364 197 87 31 8 5 0 0 238
REL. 45.8 30.2 15.3 6.3 0.8 1.3 0.0 0.0100.0 54.1 23.9 8.5 2.2 1.4 0.0 0.0 16.2
ID 45 30 15 12 4 34 0 0 142

Note:

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