Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 860 - Pha4-OHS Antala Staska
Code:CZ04HSANT
Institution:Public Health Service
Region:Hlavni mesto Praha
District:Praha 4
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ ~ 38 55 40 59 78 ~ ~ 124 92 96 95 54 ~ ~ 74 70 74 55 96 ~ ~ 52 46 54 63 95 ~ ~ 70.50 124.00 20.00
2 133 192 159 166 13 ~ ~ 59 203 292 156 62 ~ ~ 90 ~ 73 114 30 ~ ~ 27 27 41 33 134 ~ ~ ~ ~ ~ 105.47 292.00 19.00
3 24 68 39 93 118 ~ ~ 129 102 134 168 172 ~ ~ 61 47 106 99 85 ~ ~ 122 119 161 215 34 ~ ~ 62 83 124 102.83 215.00 23.00
4 103 96 ~ ~ ~ 252 184 172 71 ~ ~ 98 61 69 62 40 ~ ~ 63 ~ 88 65 71 ~ ~ 128 140 132 123 208 ~ 111.30 252.00 20.00
5 ~ ~ 26 18 ~ ~ 16 ~ ~ 98 ~ ~ ~ 93 ~ ~ ~ 100 37 ~ 44 ~ ~ 30 59 ~ ~ ~ ~ ~ ~ 52.10 100.00 10.00
6 ~ ~ ~ ~ ~ ~ ~ ~ 20 18 56 ~ ~ 61 63 ~ 69 64 ~ ~ 44 40 42 99 63 ~ ~ 73 25 58 ~ 53.00 99.00 15.00
7 72 27 ~ ~ ~ ~ 23 ~ ~ ~ ~ ~ 154 39 29 19 ~ ~ 31 73 43 ~ 149 ~ ~ ~ 9.00 15 78 153 ~ 60.93 154.00 15.00
8 ~ 120 142 72 36 22 ~ ~ 27 ~ 19 ~ ~ ~ ~ ~ ~ ~ 41 40 ~ ~ 95 170 92 70 26 ~ ~ ~ 26 66.53 170.00 15.00
9 ~ ~ ~ ~ ~ ~ ~ 118 34 28 ~ ~ 45 73 35 31 19 ~ ~ 32 57 50 50 45 ~ ~ 34 29 29 39 ~ 44.00 118.00 17.00
10 ~ ~ ~ 31 69 42 41 28 ~ ~ 43 52 52 22 22 ~ ~ 32 44 40 7.00 18 ~ ~ 55 51 ~ ~ ~ ~ ~ 38.18 69.00 17.00
11 61 32 48 95 108 ~ ~ ~ ~ ~ 42 37 ~ ~ 67 61 55 122 85 ~ ~ 49 141 169 119 100 ~ ~ 93 100 ~ 83.37 169.00 19.00
12 78 74 52 ~ ~ 31 34 48 40 50 ~ ~ 38 46 93 64 47 ~ ~ 57 95 92 ~ ~ ~ ~ ~ 50 121 94 58 63.10 121.00 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. 6 18 16 12 7 3 0 0 62 56 38 22 10 3 0 0 292
REL. 9.6 29.0 25.8 19.3 11.2 4.8 0.0 0.0 100.0 90.3 61.3 35.5 16.1 4.8 0.0 0.010.2
ID 9 29 25 38 56 120 0 0 280
ABS. 7 17 12 5 2 2 0 0 451 38 21 9 4 2 0 0 252
REL. 15.5 37.7 26.6 11.1 4.4 4.4 0.0 0.0 100.0 84.4 46.7 20.0 8.9 4.4 0.0 0.0 6.4
ID 15 37 26 22 22 111 0 0 235
ABS. 18 14 8 4 3 0 0 0 471 29 15 7 3 0 0 0 170
REL. 38.2 29.7 17.0 8.5 6.3 0.0 0.0 0.0100.0 61.7 31.9 14.9 6.4 0.0 0.0 0.0 24.8
ID 38 29 17 17 31 0 0 0 134
ABS. 9 28 13 5 1 0 0 0 561 47 19 6 1 0 0 0 169
REL 16.0 50.0 23.2 8.9 1.7 0.0 0.0 0.0100.0 83.9 33.9 10.7 1.8 0.0 0.0 0.024.11
ID 16 50 23 17 8 0 0 0 116
Year
ABS. 40 77 49 26 13 5 0 0 2101 170 93 44 18 5 0 0 292
REL. 19.0 36.6 23.3 12.3 6.1 2.3 0.0 0.0100.0 81.0 44.3 21.0 8.6 2.4 0.0 0.0 10.2
ID 19 36 23 24 30 59 0 0 194

Note:

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