Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 537 - Most-OHS
Code:CZMOHSMOH
Institution:Public Health Service
Region:Severocesky
District:Most
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 16 23 33 25 23 99 22 18 18 18 33 30 40 21 20 18 38 95 57 78 77 70 67 69 47 21 48 28 19 17 32 39.35 99.00 31.00
2 53 49 29 33 9.00 5.00 11 15 64 73 113 26 16 24 42 26 14 14 68 24 16 9.00 14 13 14 40 53 21 ~ ~ ~ 31.71 113.00 28.00
3 15 26 12 45 42 13 22 17 76 79 22 32 35 49 27 32 31 41 23 10 9.00 15 13 17 35 49 24 13 15 56 32 29.90 79.00 31.00
4 32 36 29 18 9.00 17 6.00 10 15 14 12 8.00 12 8.00 20 25 7.00 5.00 22 30 59 21 26 26 14 30 18 16 22 27 ~ 19.80 59.00 30.00
5 19 11 29 16 19 16 20 21 13 29 8.00 10 5.00 15 2.00 4.00 21 14 12 21 26 13 4.00 19 16 18 28 25 14 16 14 16.06 29.00 31.00
6 16 26 5.00 11 4.00 8.00 26 24 14 21 12 10 11 14 14 14 14 12 6.00 6.00 8.00 10 18 39 37 20 14 15 18 21 ~ 15.60 39.00 30.00
7 19 19 17 19 15 14 17 23 17 12 18 17 17 11 11 14 15 22 29 28 15 11 13 9.00 12 25 16 18 19 20 16 17.03 29.00 31.00
8 14 29 32 33 40 28 22 14 20 15 14 17 16 23 6.00 18 13 28 10 15 10 8.00 38 54 37 28 28 19 16 28 44 23.13 54.00 31.00
9 18 20 41 20 12 24 21 42 34 51 23 17 42 50 60 48 41 17 19 20 24 41 42 35 38 16 12 28 17 13 ~ 29.53 60.00 30.00
10 12 10 13 14 21 18 13 25 17 8.00 17 20 64 20 29 18 26 45 40 38 32 38 26 28 41 20 15 27 33 43 25 25.68 64.00 31.00
11 79 108 22 94 46 36 17 33 54 39 62 66 36 16 34 49 40 30 60 44 22 31 75 65 124 60 86 70 45 72 ~ 53.83 124.00 30.00
12 39 15 21 13 11 19 22 17 40 24 27 9.00 16 19 24 23 24 16 12 20 28 61 80 39 34 37 25 38 27 22 29 26.81 80.00 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. 59 19 11 1 0 0 0 0 90 31 12 1 0 0 0 0 113
REL. 65.5 21.1 12.2 1.1 0.0 0.0 0.0 0.0 100.0 34.4 13.3 1.1 0.0 0.0 0.0 0.011.2
ID 65 21 12 2 0 0 0 0 101
ABS. 87 4 0 0 0 0 0 0 91 4 0 0 0 0 0 0 59
REL. 95.6 4.3 0.0 0.0 0.0 0.0 0.0 0.0 100.0 4.4 0.0 0.0 0.0 0.0 0.0 0.0 21.4
ID 95 4 0 0 0 0 0 0 100
ABS. 74 18 0 0 0 0 0 0 92 18 0 0 0 0 0 0 60
REL. 80.4 19.5 0.0 0.0 0.0 0.0 0.0 0.0100.0 19.6 0.0 0.0 0.0 0.0 0.0 0.0 15.9
ID 80 19 0 0 0 0 0 0 100
ABS. 54 29 7 2 0 0 0 0 92 38 9 2 0 0 0 0 124
REL 58.6 31.5 7.6 2.1 0.0 0.0 0.0 0.0100.0 41.3 9.8 2.2 0.0 0.0 0.0 0.025.11
ID 58 31 7 4 0 0 0 0 102
Year
ABS. 274 70 18 3 0 0 0 0 365 91 21 3 0 0 0 0 124
REL. 75.0 19.1 4.9 0.8 0.0 0.0 0.0 0.0100.0 24.9 5.8 0.8 0.0 0.0 0.0 0.025.11
ID 75 19 4 1 0 0 0 0 100

Note:

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