Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1005 - Most
Code:CZMOCMMOS
Institution:Czech Hydrometeorological Institute
Region:Severocesky
District:Most
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 31 29 46 36 79 68 106 108 54 81 101 55 22 32 33 25 16 14 17 21 17 53 37 82 69 52 51 49 20 14 19 46.40 108.45 31.00
2 41 27 18 26 32 89 43 21 17 29 67 35 13 27 56 29 25 32 47 22 73 77 53 58 22 56 58 113 34 ~ ~ 42.66 113.36 29.00
3 20 15 17 8.51 10 20 26 21 13 17 12 22 51 25 11 14 20 33 18 25 35 103 83 88 80 44 29 33 31 31 31 31.81 102.96 31.00
4 48 45 44 66 37 15 18 43 24 61 51 36 17 49 27 48 29 56 51 76 78 30 22 16 52 52 24 19 29 23 ~ 39.56 78.40 30.00
5 34 47 62 52 44 30 21 29 49 56 36 28 34 63 56 66 31 30 24 15 20 18 42 45 38 24 18 15 15 19 45 35.67 65.78 31.00
6 36 40 35 45 24 23 21 42 23 27 16 34 24 27 15 10 24 39 55 54 40 19 35 17 10 12 22 21 22 30 ~ 28.03 55.27 30.00
7 28 24 36 20 12 23 ~ ~ ~ 18 17 15 20 22 12 13 19 19 12 13 16 21 26 33 27 19 24 16 11 24 42 20.81 42.07 28.00
8 51 28 21 32 19 22 35 34 52 40 35 35 47 54 30 42 46 37 35 24 22 44 35 24 26 19 30 54 55 34 40 35.55 55.41 31.00
9 41 17 13 24 39 29 ~ 38 59 40 55 76 52 42 35 24 33 35 51 ~ 75 79 43 60 68 72 102 71 42 49 ~ 48.64 101.56 28.00
10 34 80 74 48 74 28 20 23 27 38 66 81 112 55 38 97 62 76 72 34 64 81 57 37 34 23 26 65 28 115 52 55.45 114.78 31.00
11 62 87 75 25 39 23 128 94 48 38 69 71 104 60 84 106 38 23 27 61 63 147 134 93 37 41 42 98 74 55 ~ 68.21 146.82 30.00
12 58 62 64 51 33 28 32 67 55 33 30 37 28 26 18 13 20 80 176 103 55 63 67 74 32 52 50 57 128 66 32 54.52 175.66 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. 50 25 11 5 0 0 0 0 91 41 16 5 0 0 0 0 113
REL. 54.9 27.4 12.0 5.4 0.0 0.0 0.0 0.0 100.0 45.1 17.6 5.5 0.0 0.0 0.0 0.028.2
ID 54 27 12 10 0 0 0 0 105
ABS. 47 42 2 0 0 0 0 0 91 44 2 0 0 0 0 0 78
REL. 51.6 46.1 2.1 0.0 0.0 0.0 0.0 0.0 100.0 48.4 2.2 0.0 0.0 0.0 0.0 0.0 21.4
ID 51 46 2 0 0 0 0 0 100
ABS. 44 36 6 1 0 0 0 0 87 43 7 1 0 0 0 0 102
REL. 50.5 41.3 6.8 1.1 0.0 0.0 0.0 0.0100.0 49.4 8.0 1.1 0.0 0.0 0.0 0.0 27.9
ID 50 41 6 2 0 0 0 0 101
ABS. 23 38 21 9 1 0 0 0 92 69 31 10 1 0 0 0 176
REL 25.0 41.3 22.8 9.7 1.0 0.0 0.0 0.0100.0 75.0 33.7 10.9 1.1 0.0 0.0 0.019.12
ID 25 41 22 19 5 0 0 0 114
Year
ABS. 164 141 40 15 1 0 0 0 361 197 56 16 1 0 0 0 176
REL. 45.4 39.0 11.0 4.1 0.2 0.0 0.0 0.0100.0 54.6 15.5 4.4 0.3 0.0 0.0 0.019.12
ID 45 39 11 8 1 0 0 0 105

Note:

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