Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1005 - Most
Code:CZMOCMMOS
Institution:CHMI
Region:Severocesky
District:Most
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 85 61 20 17 20 19 48 23 21 106 73 105 78 110 92 209 20 37 35 25 27 32 25 34 50 128 112 68 64 54 50 59.64 209.04 31.00
2 78 136 36 157 167 118 84 24 67 115 88 25 23 23 21 26 24 69 98 113 159 123 55 43 40 43 27 14 ~ ~ ~ 71.24 167.07 28.00
3 15 25 24 20 14 24 17 16 19 55 41 36 21 15 43 30 23 22 14 20 18 16 26 51 86 73 50 56 61 79 146 37.20 145.93 31.00
4 84 41 59 31 21 49 31 44 55 34 39 14 30 50 46 67 38 27 27 59 64 51 53 42 42 34 26 26 18 20 ~ 40.70 84.34 30.00
5 16 21 15 15 19 25 46 45 35 44 44 33 33 32 36 17 24 55 30 37 17 12 11 20 29 53 58 24 22 27 38 30.18 58.14 31.00
6 40 34 43 41 36 26 22 27 ~ 28 31 23 29 39 25 19 23 24 20 26 37 20 20 30 35 29 28 27 33 24 ~ 28.94 42.57 29.00
7 28 41 22 13 11 15 23 13 18 20 13 17 19 22 23 26 20 17 49 56 26 44 27 28 31 40 34 23 23 20 39 25.79 56.46 31.00
8 20 21 45 22 18 41 38 34 36 52 70 42 35 47 43 48 55 37 59 42 21 11 12 14 ~ 33 17 ~ 13 34 66 35.33 69.67 29.00
9 58 32 22 22 16 38 44 67 54 45 26 22 26 23 23 24 21 22 39 33 31 45 59 91 68 82 69 71 92 73 ~ 44.55 92.33 30.00
10 45 ~ ~ ~ ~ ~ 40 54 65 19 21 27 35 49 66 71 ~ ~ ~ 44 58 48 44 30 18 23 25 12 21 21 22 37.43 71.26 23.00
11 14 80 41 27 28 28 108 125 109 188 26 127 64 47 30 36 21 42 39 28 37 84 197 246 84 83 136 138 43 55 ~ 76.98 246.50 30.00
12 27 104 55 55 22 15 19 39 180 289 67 101 29 55 77 29 126 262 36 19 21 63 88 43 29 17 44 79 88 57 20 69.50 288.60 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. 39 22 14 11 3 1 0 0 90 51 29 15 4 1 0 0 209
REL. 43.3 24.4 15.5 12.2 3.3 1.1 0.0 0.0 100.0 56.7 32.2 16.7 4.4 1.1 0.0 0.016.1
ID 43 24 15 24 16 27 0 0 152
ABS. 51 37 2 0 0 0 0 0 90 39 2 0 0 0 0 0 84
REL. 56.6 41.1 2.2 0.0 0.0 0.0 0.0 0.0 100.0 43.3 2.2 0.0 0.0 0.0 0.0 0.0 1.4
ID 56 41 2 0 0 0 0 0 100
ABS. 49 32 9 0 0 0 0 0 90 41 9 0 0 0 0 0 92
REL. 54.4 35.5 10.0 0.0 0.0 0.0 0.0 0.0100.0 45.6 10.0 0.0 0.0 0.0 0.0 0.0 29.9
ID 54 35 10 0 0 0 0 0 100
ABS. 30 29 10 9 3 3 0 0 84 54 25 15 6 3 0 0 289
REL 35.7 34.5 11.9 10.7 3.5 3.5 0.0 0.0100.0 64.3 29.8 17.9 7.1 3.6 0.0 0.010.12
ID 35 34 11 21 17 89 0 0 210
Year
ABS. 169 120 35 20 6 4 0 0 354 185 65 30 10 4 0 0 289
REL. 47.7 33.8 9.8 5.6 1.6 1.1 0.0 0.0100.0 52.3 18.4 8.5 2.8 1.1 0.0 0.010.12
ID 47 33 9 11 8 28 0 0 139

Note:

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