Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 776 - Pha6-Santinka
Code:CZ06CMSAN
Institution:Czech Hydrometeorological Institute
Region:Prague
District:Praha 6
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 18 19 76 221 243 115 99 137 52 69 63 74 80 135 61 42 117 50 40 22 29 77 58 59 32 19 19 17 22 83 49 70.88 242.70 31.00
2 61 80 92 87 75 123 52 27 18 12 15 16 32 47 67 46 114 62 26 22 24 33 17 17 53 19 27 27 ~ ~ ~ 46.11 122.64 28.00
3 44 24 19 70 117 88 17 57 46 36 73 131 116 30 47 54 75 89 30 37 32 19 12 18 29 26 40 138 149 102 62 58.93 149.00 31.00
4 60 63 40 43 29 18 35 49 45 40 53 43 36 23 32 34 ~ ~ 47 24 21 47 38 35 42 25 15 26 25 60 ~ 37.49 63.35 28.00
5 34 41 32 24 21 31 34 27 33 28 29 35 51 24 41 65 36 25 19 36 43 36 36 29 21 28 34 28 20 39 28 32.54 64.91 31.00
6 18 33 46 45 29 36 34 17 40 21 36 42 24 29 26 35 56 45 36 28 31 26 20 30 32 48 24 19 19 32 ~ 31.95 56.14 30.00
7 45 57 30 17 28 18 24 46 38 25 46 31 23 14 20 34 35 20 26 30 16 17 21 18 27 20 27 34 40 31 47 29.15 57.15 31.00
8 60 45 35 24 30 38 23 32 40 24 25 17 15 19 19 23 21 30 39 48 34 67 70 45 34 39 43 54 51 57 36 36.68 69.83 31.00
9 20 32 42 46 34 48 42 32 46 42 28 37 71 33 16 28 29 42 68 67 42 37 29 27 38 36 19 54 90 145 ~ 43.98 144.64 30.00
10 140 120 69 28 17 16 24 33 46 39 34 26 53 80 70 136 48 31 18 85 101 114 21 60 41 9 14 13 56 117 77 55.94 140.36 31.00
11 110 27 43 63 39 70 91 41 16 59 59 111 130 114 132 108 68 102 39 82 74 50 73 70 118 96 78 55 57 40 ~ 73.78 132.02 30.00
12 68 95 78 80 52 41 34 32 61 78 ~ ~ ~ 53 54 110 77 34 137 175 117 75 53 41 35 34 55 78 45 38 36 66.62 174.55 28.00

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. 35 24 17 12 0 2 0 0 90 55 31 14 2 2 0 0 243
REL. 38.8 26.6 18.8 13.3 0.0 2.2 0.0 0.0 100.0 61.1 34.4 15.6 2.2 2.2 0.0 0.05.1
ID 38 26 18 26 0 55 0 0 166
ABS. 44 45 0 0 0 0 0 0 89 45 0 0 0 0 0 0 65
REL. 49.4 50.5 0.0 0.0 0.0 0.0 0.0 0.0 100.0 50.6 0.0 0.0 0.0 0.0 0.0 0.0 16.5
ID 49 50 0 0 0 0 0 0 100
ABS. 45 40 6 1 0 0 0 0 92 47 7 1 0 0 0 0 145
REL. 48.9 43.4 6.5 1.0 0.0 0.0 0.0 0.0100.0 51.1 7.6 1.1 0.0 0.0 0.0 0.0 30.9
ID 48 43 6 2 0 0 0 0 101
ABS. 14 35 22 17 1 0 0 0 89 75 40 18 1 0 0 0 175
REL 15.7 39.3 24.7 19.1 1.1 0.0 0.0 0.0100.0 84.3 44.9 20.2 1.1 0.0 0.0 0.020.12
ID 15 39 24 38 5 0 0 0 123
Year
ABS. 138 144 45 30 1 2 0 0 360 222 78 33 3 2 0 0 243
REL. 38.3 40.0 12.5 8.3 0.2 0.5 0.0 0.0100.0 61.7 21.7 9.2 0.8 0.6 0.0 0.0 5.1
ID 38 40 12 16 1 13 0 0 122

Note:

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