Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
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 ~ 14 ~ ~ 32 52 41 39 53 ~ ~ 51 50 16 88 62 ~ ~ 46 49 61 ~ 54 ~ ~ 122 137 ~ 71 65 ~ 58.05 137.00 19.00
2 ~ 61 42 86 136 143 ~ ~ 73 62 84 55 81 ~ ~ 33 60 66 67 71 ~ ~ 96 96 98 90 42 ~ ~ ~ ~ 77.10 143.00 20.00
3 ~ 43 45 38 33 45 ~ ~ 45 69 55 ~ 33 ~ ~ 66 58 54 33 39 ~ ~ 41 47 50 54 42 ~ ~ 34 35 45.67 69.00 21.00
4 ~ ~ 54 ~ ~ 25 70 61 52 44 ~ ~ ~ 35 36 101 20 ~ ~ ~ 16 7.00 ~ 36 ~ ~ 31 14 18 18 ~ 37.53 101.00 17.00
5 ~ ~ ~ 17 12 9.00 33 ~ ~ ~ 71 48 46 19 31 ~ ~ 52 31 43 49 20 ~ ~ 27 19 33 24 30 ~ ~ 32.32 71.00 19.00
6 55 47 49 ~ 22 ~ ~ 25 33 25 27 29 ~ ~ 29 24 33 53 42 ~ ~ 35 23 38 35 ~ ~ ~ ~ ~ ~ 34.67 55.00 18.00
7 47 53 22 ~ ~ ~ 36 26 48 61 ~ ~ 31 67 60 61 24 ~ ~ 48 51 58 47 41 ~ ~ 36 38 17 23 ~ 42.62 67.00 21.00
8 ~ ~ 26 12 18 43 29 ~ ~ ~ 28 20 ~ ~ ~ ~ ~ 39 ~ 80 18 ~ ~ 23 36 31 36 22 ~ ~ 78 33.69 80.00 16.00
9 142 89 60 48 ~ ~ 101 20 18 39 93 ~ ~ 80 70 161 159 48 ~ ~ 41 98 64 93 61 ~ ~ ~ 58 32 ~ 75.00 161.00 21.00
10 52 38 ~ ~ ~ 83 59 90 158 ~ ~ 103 137 116 159 54 ~ ~ 36 44 81 49 61 ~ ~ 34 27 ~ 48 28 ~ 72.85 159.00 20.00
11 ~ 124 60 62 80 41 ~ ~ 62 122 77 69 82 ~ ~ 136 39 49 96 33 ~ ~ 171 97 70 108 206 ~ ~ 194 ~ 94.19 206.00 21.00
12 105 186 125 19 ~ ~ 79 142 38 30 169 ~ ~ 189 99 105 100 100 ~ ~ 33 139 61 ~ ~ ~ ~ 102 ~ 14 13 92.40 189.00 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. 7 36 13 4 0 0 0 0 60 53 17 4 0 0 0 0 143
REL. 11.6 60.0 21.6 6.6 0.0 0.0 0.0 0.0 100.0 88.3 28.3 6.7 0.0 0.0 0.0 0.06.2
ID 11 60 21 13 0 0 0 0 106
ABS. 31 20 2 1 0 0 0 0 541 23 3 1 0 0 0 0 101
REL. 57.4 37.0 3.7 1.8 0.0 0.0 0.0 0.0 100.0 42.6 5.6 1.9 0.0 0.0 0.0 0.0 16.4
ID 57 37 3 3 0 0 0 0 101
ABS. 19 26 9 2 2 0 0 0 581 39 13 4 2 0 0 0 161
REL. 32.7 44.8 15.5 3.4 3.4 0.0 0.0 0.0100.0 67.2 22.4 6.9 3.4 0.0 0.0 0.0 16.9
ID 32 44 15 6 17 0 0 0 117
ABS. 8 18 14 13 7 1 0 0 61 53 35 21 8 1 0 0 206
REL 13.1 29.5 22.9 21.3 11.4 1.6 0.0 0.0100.0 86.9 57.4 34.4 13.1 1.6 0.0 0.027.11
ID 13 29 22 42 57 40 0 0 206
Year
ABS. 65 100 38 20 9 1 0 0 2331 168 68 30 10 1 0 0 206
REL. 27.8 42.9 16.3 8.5 3.8 0.4 0.0 0.0100.0 72.1 29.2 12.9 4.3 0.4 0.0 0.027.11
ID 27 42 16 17 19 10 0 0 134

Note:

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