Detailed overview of ambient air pollution valuis from individual stations

777 - PHA6-Veleslavin

Year: 1997
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 777 - PHA6-Veleslavin
Code:CZ06CMVEL
Institution:CHMI
Region:Hlavni mesto Praha
District:Praha 6
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 75 137 104 89 46 75 77 136 88 79 59 47 122 200 243 205 156 113 77 133 139 65 111 136 101 60 113 47 48 41 30 101.60 243.15 31.00
2 43 140 140 58 55 54 113 62 ~ 42 35 31 24 35 21 35 83 41 28 28 26 41 49 55 25 ~ 28 75 ~ ~ ~ 52.66 140.21 26.00
3 65 33 44 78 94 89 131 147 113 195 197 133 44 41 28 28 44 67 35 28 46 25 37 65 79 63 32 12 10 15 50 66.73 196.59 31.00
4 85 98 65 15 24 11 34 64 85 37 19 15 41 32 13 16 37 32 21 43 78 38 56 52 37 74 53 40 38 23 ~ 42.52 98.48 30.00
5 41 34 55 41 41 33 38 29 26 54 65 24 35 65 62 62 38 35 54 47 33 30 23 19 31 29 17 17 16 12 21 36.31 65.45 31.00
6 29 50 29 58 47 65 43 31 32 58 62 64 31 20 18 22 51 33 39 23 20 30 25 25 69 43 49 31 33 24 ~ 38.50 69.10 30.00
7 27 39 31 22 15 8.95 11 11 20 32 39 30 51 58 30 53 52 14 7.26 10 14 26 51 45 26 13 15 56 31 44 36 29.58 58.26 31.00
8 27 21 51 61 31 25 28 29 32 38 49 57 54 45 24 25 29 39 58 80 62 54 48 46 73 103 108 59 21 22 83 47.80 108.32 31.00
9 117 94 45 67 71 29 23 21 11 23 83 55 20 38 108 82 101 124 30 46 110 187 106 71 83 77 52 132 118 35 ~ 72.00 186.93 30.00
10 28 8.78 16 20 67 129 89 39 27 26 13 15 32 28 39 60 83 77 140 75 71 122 46 20 14 17 40 113 163 129 86 59.17 162.73 31.00
11 125 68 44 93 131 174 196 57 50 104 104 135 47 63 50 29 33 58 94 200 204 78 100 90 102 70 124 111 116 90 ~ 98.07 204.14 30.00
12 48 56 64 26 49 48 64 119 159 53 55 33 16 56 54 75 53 59 130 79 143 112 101 31 18 17 24 35 39 84 142 65.85 159.47 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. 18 32 14 18 3 3 0 0 88 70 38 24 6 3 0 0 243
REL. 20.4 36.3 15.9 20.4 3.4 3.4 0.0 0.0 100.0 79.5 43.2 27.3 6.8 3.4 0.0 0.015.1
ID 20 36 15 40 17 85 0 0 215
ABS. 42 43 6 0 0 0 0 0 91 49 6 0 0 0 0 0 98
REL. 46.1 47.2 6.5 0.0 0.0 0.0 0.0 0.0 100.0 53.8 6.6 0.0 0.0 0.0 0.0 0.0 2.4
ID 46 47 6 0 0 0 0 0 100
ABS. 39 31 11 10 1 0 0 0 92 53 22 11 1 0 0 0 187
REL. 42.3 33.6 11.9 10.8 1.0 0.0 0.0 0.0100.0 57.6 23.9 12.0 1.1 0.0 0.0 0.0 22.9
ID 42 33 11 21 5 0 0 0 115
ABS. 22 26 17 21 5 1 0 0 92 70 44 27 6 1 0 0 204
REL 23.9 28.2 18.4 22.8 5.4 1.0 0.0 0.0100.0 76.1 47.8 29.3 6.5 1.1 0.0 0.021.11
ID 23 28 18 45 27 27 0 0 170
Year
ABS. 121 132 48 49 9 4 0 0 363 242 110 62 13 4 0 0 243
REL. 33.3 36.3 13.2 13.4 2.4 1.1 0.0 0.0100.0 66.7 30.3 17.1 3.6 1.1 0.0 0.0 15.1
ID 33 36 13 26 12 27 0 0 149

Note:

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

Detailed overview of ambient air pollution valuis from individual stations - selection station