Detailed overview of ambient air pollution valuis from individual stations

1001 - Chomutov

Year: 1997
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1001 - Chomutov
Code:CZCVCMCHO
Institution:CHMI
Region:Severocesky
District:Chomutov
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 115 116 49 84 49 88 103 69 57 118 114 71 115 181 257 290 229 202 113 168 102 47 76 145 83 39 96 50 34 27 30 106.97 290.13 31.00
2 39 73 103 72 46 67 126 90 68 64 39 57 30 48 29 21 69 78 30 39 26 60 94 105 32 24 35 80 ~ ~ ~ 58.74 126.12 28.00
3 77 41 43 71 86 59 70 66 61 74 90 82 43 41 26 30 35 34 48 37 44 30 22 37 76 54 44 16 15 18 33 48.54 90.12 31.00
4 53 47 40 24 26 16 35 60 68 33 22 20 22 22 17 19 32 ~ ~ 31 59 43 44 59 30 31 55 39 33 22 ~ 35.81 67.65 28.00
5 32 37 33 39 31 19 29 23 25 31 33 25 40 ~ ~ 35 26 23 32 28 31 29 25 18 29 31 18 22 19 16 14 27.35 39.85 29.00
6 31 37 28 42 27 30 30 24 25 35 37 36 22 23 18 29 28 28 33 27 23 29 26 22 35 29 43 35 26 30 ~ 29.53 42.75 30.00
7 34 30 27 23 15 15 16 22 22 30 26 25 24 ~ 34 33 33 20 13 20 25 31 37 34 25 17 22 28 27 26 ~ 25.40 36.51 29.00
8 21 22 34 45 29 29 34 35 30 44 38 36 39 28 21 22 39 59 50 48 38 39 36 ~ ~ ~ 56 27 25 22 39 35.16 59.25 28.00
9 40 29 46 53 39 26 20 20 17 27 44 40 22 30 55 61 62 63 33 26 44 57 51 35 55 49 34 54 59 37 ~ 40.84 62.76 30.00
10 25 15 26 32 50 74 93 58 33 28 19 19 31 35 56 79 113 83 132 92 92 93 53 23 17 27 59 59 116 94 55 57.53 132.12 31.00
11 84 60 43 65 70 152 112 130 75 147 89 69 40 73 71 34 41 30 37 100 110 78 72 76 45 78 66 76 83 67 ~ 75.81 152.11 30.00
12 52 50 41 30 44 57 70 84 100 58 76 49 20 24 33 46 25 32 62 51 72 118 97 61 26 23 44 57 51 101 126 57.46 126.46 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. 16 33 23 12 2 4 0 0 90 74 41 18 6 4 0 0 290
REL. 17.7 36.6 25.5 13.3 2.2 4.4 0.0 0.0 100.0 82.2 45.6 20.0 6.7 4.4 0.0 0.016.1
ID 17 36 25 26 11 111 0 0 228
ABS. 63 23 1 0 0 0 0 0 87 24 1 0 0 0 0 0 68
REL. 72.4 26.4 1.1 0.0 0.0 0.0 0.0 0.0 100.0 27.6 1.1 0.0 0.0 0.0 0.0 0.0 9.4
ID 72 26 1 0 0 0 0 0 100
ABS. 45 42 0 0 0 0 0 0 87 42 0 0 0 0 0 0 63
REL. 51.7 48.2 0.0 0.0 0.0 0.0 0.0 0.0100.0 48.3 0.0 0.0 0.0 0.0 0.0 0.0 18.9
ID 51 48 0 0 0 0 0 0 100
ABS. 21 31 28 11 1 0 0 0 92 71 40 12 1 0 0 0 152
REL 22.8 33.6 30.4 11.9 1.0 0.0 0.0 0.0100.0 77.2 43.5 13.0 1.1 0.0 0.0 0.0 6.11
ID 22 33 30 23 5 0 0 0 116
Year
ABS. 145 129 52 23 3 4 0 0 356 211 82 30 7 4 0 0 290
REL. 40.7 36.2 14.6 6.4 0.8 1.1 0.0 0.0100.0 59.3 23.0 8.4 2.0 1.1 0.0 0.0 16.1
ID 40 36 14 12 4 28 0 0 136

Note:

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

Detailed overview of ambient air pollution valuis from individual stations - selection station