Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1029 - Straz nad Ohri
Code:CZKVCMSNO
Institution:CHMI
Region:Zapadocesky
District:Karlovy Vary
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 61 42 16 19 16 25 25 21 33 65 62 128 148 131 69 79 22 34 26 26 17 25 26 41 53 117 113 70 52 53 38 53.37 148.27 31.00
2 50 64 48 86 105 125 65 29 53 80 65 42 39 36 33 29 34 52 53 87 78 97 44 53 65 39 27 15 ~ ~ ~ 56.84 124.51 28.00
3 20 23 24 18 18 23 18 15 29 24 26 30 24 23 34 41 37 23 20 18 24 15 28 50 53 38 39 36 39 52 50 29.40 52.77 31.00
4 39 30 32 19 33 41 26 34 27 29 32 15 23 50 35 47 44 28 39 36 34 36 38 29 40 20 31 46 19 21 ~ 32.33 49.87 30.00
5 22 20 27 17 25 28 37 33 48 52 52 49 42 61 35 24 34 28 31 28 19 16 20 23 26 26 49 31 28 20 21 31.30 60.87 31.00
6 25 31 37 45 36 29 21 29 28 26 26 21 24 22 26 20 23 25 32 25 34 25 20 29 27 24 22 25 30 27 ~ 27.11 44.80 30.00
7 28 27 17 14 15 15 19 19 18 23 14 17 17 30 30 23 22 21 32 44 31 34 22 35 34 25 29 20 19 22 30 24.04 43.89 31.00
8 20 15 25 26 30 30 34 25 39 44 34 24 35 32 27 31 35 41 39 30 17 16 20 16 29 26 16 17 ~ ~ 31 27.74 43.58 29.00
9 33 45 21 25 20 23 28 72 52 35 31 21 25 21 24 23 34 36 37 56 45 71 66 65 63 48 52 53 51 37 ~ 40.44 72.08 30.00
10 27 57 32 28 45 49 46 46 57 20 20 23 34 30 44 52 29 34 43 41 42 46 44 25 14 23 23 18 22 21 26 34.23 57.18 31.00
11 26 59 35 25 29 45 55 47 74 33 13 56 56 40 45 41 25 45 45 22 40 49 83 91 51 83 96 97 31 71 ~ 50.25 97.30 30.00
12 38 61 52 52 25 19 26 52 87 165 58 82 19 42 42 25 62 67 29 22 21 41 36 37 21 20 32 40 49 30 15 44.13 164.94 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. 37 38 8 7 0 0 0 0 90 53 15 7 0 0 0 0 148
REL. 41.1 42.2 8.8 7.7 0.0 0.0 0.0 0.0 100.0 58.9 16.7 7.8 0.0 0.0 0.0 0.013.1
ID 41 42 8 15 0 0 0 0 107
ABS. 63 28 0 0 0 0 0 0 91 28 0 0 0 0 0 0 61
REL. 69.2 30.7 0.0 0.0 0.0 0.0 0.0 0.0 100.0 30.8 0.0 0.0 0.0 0.0 0.0 0.0 14.5
ID 69 30 0 0 0 0 0 0 100
ABS. 60 28 2 0 0 0 0 0 90 30 2 0 0 0 0 0 72
REL. 66.6 31.1 2.2 0.0 0.0 0.0 0.0 0.0100.0 33.3 2.2 0.0 0.0 0.0 0.0 0.0 8.9
ID 66 31 2 0 0 0 0 0 100
ABS. 37 44 10 0 1 0 0 0 92 55 11 1 1 0 0 0 165
REL 40.2 47.8 10.8 0.0 1.0 0.0 0.0 0.0100.0 59.8 12.0 1.1 1.1 0.0 0.0 0.010.12
ID 40 47 10 0 5 0 0 0 104
Year
ABS. 197 138 20 7 1 0 0 0 363 166 28 8 1 0 0 0 165
REL. 54.2 38.0 5.5 1.9 0.2 0.0 0.0 0.0100.0 45.7 7.7 2.2 0.3 0.0 0.0 0.010.12
ID 54 38 5 3 1 0 0 0 103

Note:

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