Detailed overview of ambient air pollution valuis from individual stations

Year: 2001
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 629 - Pha5-Reporyje
Code:CZ05HSREP
Institution:Public Health Service
Region:Prague
District:Praha 5
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 39 31 84 97 66 18 80 50 45 93 75 67 133 99 157 99 26 62 40 33 28 30 26 ~ 57 20 58 73 52 50 175 65.43 175.00 30.00
2 76 49 88 67 95 121 170 143 99 182 111 200 86 107 150 112 37 35 32 19 19 ~ 44 27 30 38 39 58 ~ ~ ~ 82.74 200.00 27.00
3 49 56 37 44 52 40 39 45 39 35 48 26 22 37 85 121 50 63 26 22 50 141 83 68 42 44 63 57 34 73 71 53.61 141.00 31.00
4 125 66 297 44 22 27 9.00 28 60 28 31 25 18 24 15 34 35 53 70 43 45 46 75 72 67 23 38 39 10 72 ~ 51.37 297.00 30.00
5 71 16 14 17 19 14 14 16 16 11 8.00 12 14 14 10 ~ ~ ~ ~ ~ ~ ~ 27 25 34 44 59 50 18 18 63 25.17 71.00 24.00
6 35 13 15 30 34 16 15 15 11 15 18 19 54 67 44 13 14 14 10 33 ~ 25 ~ ~ 30 39 79 86 82 80 ~ 33.56 86.00 27.00
7 61 60 20 28 22 24 16 19 19 17 31 33 46 30 26 32 49 16 43 20 22 21 29 41 27 26 36 45 32 48 23 31.03 61.00 31.00
8 37 42 39 19 17 27 18 27 32 35 19 22 16 51 25 55 33 31 28 25 72 17 18 20 18 29 23 19 59 20 14 29.26 72.00 31.00
9 18 19 13 18 43 22 16 22 16 33 21 25 31 40 19 27 23 32 13 34 17 46 24 24 51 29 25 22 23 46 ~ 26.40 51.00 30.00
10 23 16 35 20 29 21 38 22 37 59 52 59 66 79 44 64 27 40 51 26 16 23 23 40 58 54 28 55 25 58 17 38.87 79.00 31.00
11 12 10 99 24 107 45 22 37 22 24 87 66 75 114 112 116 101 60 133 112 40 93 250 30 52 110 213 146 55 97 ~ 82.13 250.00 30.00
12 109 78 54 ~ 193 42 46 116 82 90 91 89 ~ 74 ~ 64 42 54 99 139 180 110 113 138 127 41 33 27 19 ~ 119 87.74 193.00 27.00

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. 17 37 20 9 5 0 0 0 88 71 34 14 5 0 0 0 200
REL. 19.3 42.0 22.7 10.2 5.6 0.0 0.0 0.0 100.0 80.7 38.6 15.9 5.7 0.0 0.0 0.012.2
ID 19 42 22 20 28 0 0 0 132
ABS. 47 21 11 1 0 1 0 0 81 34 13 2 1 1 0 0 297
REL. 58.0 25.9 13.5 1.2 0.0 1.2 0.0 0.0 100.0 42.0 16.0 2.5 1.2 1.2 0.0 0.0 3.4
ID 58 25 13 2 0 30 0 0 130
ABS. 69 22 1 0 0 0 0 0 92 23 1 0 0 0 0 0 72
REL. 75.0 23.9 1.0 0.0 0.0 0.0 0.0 0.0100.0 25.0 1.1 0.0 0.0 0.0 0.0 0.0 21.8
ID 75 23 1 0 0 0 0 0 100
ABS. 24 30 13 17 2 2 0 0 88 64 34 21 4 2 0 0 250
REL 27.2 34.0 14.7 19.3 2.2 2.2 0.0 0.0100.0 72.7 38.6 23.9 4.5 2.3 0.0 0.023.11
ID 27 34 14 38 11 56 0 0 182
Year
ABS. 157 110 45 27 7 3 0 0 349 192 82 37 10 3 0 0 297
REL. 44.9 31.5 12.8 7.7 2.0 0.8 0.0 0.0100.0 55.0 23.5 10.6 2.9 0.9 0.0 0.0 3.4
ID 44 31 12 15 10 21 0 0 136

Note:

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