Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 457 - Pha10-Srobarova
Code:CZ10HSSRO
Institution:Public Health Service
Region:Prague
District:Praha 10
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ 36 114 73 61 ~ ~ 108 70 73 76 108 ~ ~ 91 42 65 137 47 ~ ~ 30 44 67 51 96 ~ ~ 79 52 55 71.59 137.00 22.00
2 56 49 ~ ~ 35 44 52 72 50 ~ ~ 127 46 96 101 224 ~ ~ 35 34 33 37 23 ~ ~ 64 50 79 ~ ~ ~ 65.35 224.00 20.00
3 77 60 ~ ~ 47 35 37 46 ~ ~ ~ 31 50 53 54 ~ ~ ~ 35 139 59 94 61 ~ ~ 46 35 31 38 ~ ~ 54.11 139.00 19.00
4 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
5 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 84 76 35 39 ~ ~ 29 48 90 96 59 ~ ~ 30 46 57 52 57.00 96.00 13.00
6 81 ~ ~ 31 48 46 53 44 ~ ~ 36 75 53 71 63 ~ ~ 36 29 69 43 46 ~ ~ 34 76 86 55 108 ~ ~ 56.33 108.00 21.00
7 ~ ~ 47 ~ ~ ~ ~ ~ 45 58 42 15 49 ~ ~ 28 42 40 46 58 ~ ~ ~ 80 57 55 87 ~ ~ 68 85 53.06 87.00 17.00
8 68 44 97 ~ ~ 26 49 56 71 51 ~ ~ 74 50 59 71 61 ~ ~ 49 58 67 61 68 ~ ~ ~ 35 65 44 70 58.82 97.00 22.00
9 ~ ~ 47 ~ 43 34 58 ~ ~ 19 47 37 39 90 ~ ~ 30 23 58 ~ 52 ~ ~ 88 57 117 ~ ~ ~ ~ ~ 52.44 117.00 16.00
10 65 63 67 61 94 ~ ~ 77 110 80 62 ~ ~ ~ 55 44 41 44 56 ~ ~ 35 45 25 31 27 ~ ~ 19 20 26 52.14 110.00 22.00
11 ~ ~ ~ ~ 82 49 46 45 58 ~ ~ 80 73 111 115 164 ~ ~ 87 96 95 59 54 ~ ~ 188 138 93 78 66 ~ 88.85 188.00 20.00
12 ~ ~ 56 82 118 115 72 ~ ~ 123 101 68 67 72 ~ ~ 29 77 61 47 ~ ~ ~ ~ ~ ~ 58 37 ~ ~ 55 72.82 123.00 17.00

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. 5 35 13 7 0 1 0 0 61 56 21 8 1 1 0 0 224
REL. 8.1 57.3 21.3 11.4 0.0 1.6 0.0 0.0 100.0 91.8 34.4 13.1 1.6 1.6 0.0 0.016.2
ID 8 57 21 22 0 40 0 0 150
ABS. 4 19 10 1 0 0 0 0 341 30 11 1 0 0 0 0 108
REL. 11.7 55.8 29.4 2.9 0.0 0.0 0.0 0.0 100.0 88.2 32.4 2.9 0.0 0.0 0.0 0.0 29.6
ID 11 55 29 5 0 0 0 0 102
ABS. 6 34 14 1 0 0 0 0 551 49 15 1 0 0 0 0 117
REL. 10.9 61.8 25.4 1.8 0.0 0.0 0.0 0.0100.0 89.1 27.3 1.8 0.0 0.0 0.0 0.0 26.9
ID 10 61 25 3 0 0 0 0 101
ABS. 7 24 18 8 2 0 0 0 591 52 28 10 2 0 0 0 188
REL 11.8 40.6 30.5 13.5 3.3 0.0 0.0 0.0100.0 88.1 47.5 16.9 3.4 0.0 0.0 0.026.11
ID 11 40 30 27 16 0 0 0 127
Year
ABS. 22 112 55 17 2 1 0 0 2091 187 75 20 3 1 0 0 224
REL. 10.5 53.5 26.3 8.1 0.9 0.4 0.0 0.0100.0 89.5 35.9 9.6 1.4 0.5 0.0 0.0 16.2
ID 10 53 26 16 4 11 0 0 123

Note:

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