Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 776 - Pha6-Santinka
Code:CZ06CMSAN
Institution:Czech Hydrometeorological Institute
Region:Hlavni mesto Praha
District:Praha 6
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 70 31 40 44 106 137 169 72 57 55 91 87 37 56 73 31 22 16 23 23 23 57 44 57 57 59 62 57 19 18 16 55.19 169.12 31.00
2 50 29 22 30 26 88 43 17 10 41 73 51 17 34 51 36 32 49 53 25 74 84 68 69 29 104 65 55 79 ~ ~ 48.38 104.35 29.00
3 28 21 21 10 11 30 20 17 13 37 13 44 56 28 16 33 29 46 31 43 51 96 109 86 86 44 29 45 41 48 39 39.33 108.63 31.00
4 55 44 64 79 32 25 26 53 46 52 86 65 29 56 35 46 48 52 47 64 89 51 39 23 38 64 46 36 40 44 ~ 49.18 88.72 30.00
5 35 42 56 61 61 39 36 35 49 54 46 31 28 55 62 71 51 35 32 16 30 25 46 59 30 39 23 21 22 23 43 40.45 70.80 31.00
6 64 51 45 50 43 23 24 49 40 35 23 35 36 29 22 18 30 45 65 62 76 28 32 15 20 19 25 30 29 31 ~ 36.43 76.00 30.00
7 29 46 23 19 10 23 34 14 18 30 31 24 21 29 17 18 20 29 18 21 26 24 33 57 36 35 32 19 13 31 41 26.51 56.78 31.00
8 53 28 24 27 25 25 30 39 57 53 28 27 49 75 38 37 47 62 41 31 19 29 35 42 24 24 37 45 56 47 42 38.72 75.38 31.00
9 56 14 10 21 37 51 39 61 61 57 58 82 50 42 45 29 32 49 59 47 48 44 30 49 78 102 71 54 41 40 ~ 48.52 101.52 30.00
10 41 65 55 71 75 35 26 38 56 59 76 73 141 49 45 79 45 20 89 ~ ~ ~ ~ 48 ~ 30 30 69 43 72 48 56.80 141.42 26.00
11 56 75 81 21 65 47 122 88 97 54 77 70 91 79 103 87 37 43 100 92 85 173 149 131 53 23 37 103 113 74 ~ 80.89 173.33 30.00
12 55 54 92 105 54 35 56 122 130 68 50 60 25 28 19 13 28 74 84 135 63 80 76 62 53 85 50 48 127 30 44 64.72 134.61 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. 36 35 15 4 1 0 0 0 91 55 20 5 1 0 0 0 169
REL. 39.5 38.4 16.4 4.3 1.0 0.0 0.0 0.0 100.0 60.4 22.0 5.5 1.1 0.0 0.0 0.07.1
ID 39 38 16 8 5 0 0 0 108
ABS. 32 54 5 0 0 0 0 0 91 59 5 0 0 0 0 0 89
REL. 35.1 59.3 5.4 0.0 0.0 0.0 0.0 0.0 100.0 64.8 5.5 0.0 0.0 0.0 0.0 0.0 21.4
ID 35 59 5 0 0 0 0 0 100
ABS. 44 43 4 1 0 0 0 0 92 48 5 1 0 0 0 0 102
REL. 47.8 46.7 4.3 1.0 0.0 0.0 0.0 0.0100.0 52.2 5.4 1.1 0.0 0.0 0.0 0.0 26.9
ID 47 46 4 2 0 0 0 0 101
ABS. 12 34 28 12 1 0 0 0 87 75 41 13 1 0 0 0 173
REL 13.7 39.0 32.1 13.7 1.1 0.0 0.0 0.0100.0 86.2 47.1 14.9 1.1 0.0 0.0 0.022.11
ID 13 39 32 27 5 0 0 0 118
Year
ABS. 124 166 52 17 2 0 0 0 361 237 71 19 2 0 0 0 173
REL. 34.3 45.9 14.4 4.7 0.5 0.0 0.0 0.0100.0 65.7 19.7 5.3 0.6 0.0 0.0 0.022.11
ID 34 45 14 9 2 0 0 0 106

Note:

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