Detailed overview of ambient air pollution valuis from individual stations

430 - PHA1-Rytirska

Year: 1997
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 430 - PHA1-Rytirska
Code:CZ01HSRYT
Institution:Public Health Service
Region:Hlavni mesto Praha
District:Praha 1
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ 52 45 ~ ~ 30 46 84 55 68 ~ ~ 80 50 47 173 142 ~ ~ 164 147 80 131 150 ~ ~ 126 51 86 66 81 88.82 173.00 22.00
2 ~ ~ 121 140 99 94 125 ~ ~ 81 55 68 38 71 ~ ~ 98 73 61 63 47 ~ ~ 81 58 46 48 72 ~ ~ ~ 76.95 140.00 20.00
3 ~ ~ 82 99 117 81 123 ~ ~ 103 101 101 52 39 ~ ~ 113 43 70 54 39 ~ ~ 112 120 86 44 36 ~ ~ ~ 80.75 123.00 20.00
4 108 31 153 29 ~ ~ 74 86 ~ ~ 56 ~ ~ 61 36 39 59 53 ~ ~ 94 72 82 71 51 ~ ~ 60 53 45 ~ 65.65 153.00 20.00
5 ~ 57 ~ ~ 53 21 130 ~ 37 ~ ~ 51 55 96 77 62 ~ ~ 60 54 47 46 37 ~ ~ 43 32 29 29 31 ~ 52.35 130.00 20.00
6 ~ 80 42 ~ 44 68 ~ ~ 61 70 68 70 61 ~ ~ 49 68 59 ~ 24 ~ ~ 46 64 95 69 70 ~ ~ 43 ~ 60.58 95.00 19.00
7 37 45 60 106 ~ ~ 28 22 25 38 31 ~ ~ 68 35 36 25 31 ~ ~ 37 11 43 54 29 ~ ~ 34 47 38 53 40.57 106.00 23.00
8 28 ~ ~ 60 54 26 19 47 ~ ~ 47 75 81 96 33 ~ ~ 70 65 60 79 61 ~ ~ 68 91 76 60 58 ~ ~ 59.71 96.00 21.00
9 94 104 72 92 62 ~ ~ 36 24 41 80 57 ~ ~ 89 85 124 99 49 ~ ~ 139 101 82 122 108 ~ ~ 116 74 ~ 84.09 139.00 22.00
10 58 24 31 ~ ~ 109 ~ 90 46 47 ~ ~ ~ 48 54 ~ 64 ~ ~ 86 93 105 63 34 ~ ~ 218 ~ 154 132 83 81.00 218.00 19.00
11 ~ ~ 58 109 94 187 212 ~ ~ 165 137 103 112 84 ~ ~ 52 68 55 35 63 ~ ~ 73 77 81 104 98 ~ ~ ~ 98.35 212.00 20.00
12 55 56 82 62 76 ~ ~ 108 152 70 76 53 ~ ~ 58 49 77 53 67 ~ ~ 179 118 ~ ~ ~ ~ ~ 85 78 98 82.60 179.00 20.00

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. 1 23 20 16 2 0 0 0 62 61 38 18 2 0 0 0 173
REL. 1.6 37.0 32.2 25.8 3.2 0.0 0.0 0.0 100.0 98.4 61.3 29.0 3.2 0.0 0.0 0.016.1
ID 1 37 32 51 16 0 0 0 138
ABS. 8 31 17 2 1 0 0 0 591 51 20 3 1 0 0 0 153
REL. 13.5 52.5 28.8 3.3 1.6 0.0 0.0 0.0 100.0 86.4 33.9 5.1 1.7 0.0 0.0 0.0 3.4
ID 13 52 28 6 8 0 0 0 110
ABS. 13 27 18 8 0 0 0 0 66 53 26 8 0 0 0 0 139
REL. 19.6 40.9 27.2 12.1 0.0 0.0 0.0 0.0100.0 80.3 39.4 12.1 0.0 0.0 0.0 0.0 22.9
ID 19 40 27 24 0 0 0 0 112
ABS. 2 20 20 10 5 2 0 0 591 57 37 17 7 2 0 0 218
REL 3.3 33.8 33.8 16.9 8.4 3.3 0.0 0.0100.0 96.6 62.7 28.8 11.9 3.4 0.0 0.027.10
ID 3 33 33 33 42 84 0 0 232
Year
ABS. 24 101 75 36 8 2 0 0 246 222 121 46 10 2 0 0 218
REL. 9.7 41.0 30.4 14.6 3.2 0.8 0.0 0.0100.0 90.2 49.2 18.7 4.1 0.8 0.0 0.027.10
ID 9 41 30 29 16 20 0 0 147

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