Detailed overview of ambient air pollution valuis from individual stations

Year: 1999
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 457 - Pha10-Srobarova
Code:CZ10HSSRO
Institution:Public Health Service
Region:Hlavni mesto Praha
District:Praha 10
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 ~ ~ ~ 122 189 183 103 135 ~ ~ 83 86 95 84 93 ~ ~ 92 75 54 52 ~ ~ ~ 73 144 93 85 68 ~ ~ 100.47 189.00 19.00
2 121 173 99 65 ~ ~ ~ 108 227 220 93 83 ~ ~ 72 77 42 47 93 ~ ~ 68 66 87 64 157 ~ ~ ~ ~ ~ 103.26 227.00 19.00
3 70 118 108 95 59 ~ ~ 92 111 104 80 121 ~ ~ 54 48 104 145 ~ ~ ~ 96 91 211 223 128 ~ ~ 92 94 ~ 106.86 223.00 21.00
4 151 221 ~ ~ ~ 107 89 75 148 ~ ~ 79 65 89 84 53 ~ ~ 96 183 115 165 135 ~ ~ 132 83 106 87 232 ~ 118.81 232.00 21.00
5 ~ ~ 67 57 52 67 64 ~ ~ 42 38 37 56 35 ~ ~ 28 18 39 30 46 ~ ~ 57 40 51 46 54 ~ ~ 31 45.48 67.00 21.00
6 51 29 56 45 ~ ~ 32 44 47 43 34 ~ ~ 35 41 53 41 35 ~ ~ 33 25 62 77 45 ~ ~ 50 47 54 ~ 44.50 77.00 22.00
7 64 ~ ~ ~ ~ ~ 35 70 34 ~ ~ 48 30 29 48 34 ~ ~ 35 23 ~ 24 25 ~ ~ 30 34 29 60 73 ~ 40.28 73.00 18.00
8 ~ 55 92 82 74 46 ~ ~ 57 42 41 48 59 ~ ~ 34 37 37 43 ~ ~ ~ 64 114 47 40 36 ~ ~ 59 68 55.95 114.00 21.00
9 49 84 ~ ~ ~ 54 69 116 117 102 ~ ~ 73 137 74 61 45 ~ ~ 30 54 68 63 61 ~ ~ 54 57 37 58 ~ 69.67 137.00 21.00
10 49 ~ ~ 59 81 54 48 58 ~ ~ 62 136 165 69 88 ~ ~ 63 61 53 36 49 ~ ~ 81 63 63 ~ 100 ~ ~ 71.90 165.00 20.00
11 94 99 134 84 98 ~ ~ 63 66 47 54 60 ~ ~ 74 66 62 80 83 ~ ~ 74 73 122 110 ~ ~ ~ 67 82 ~ 80.57 134.00 21.00
12 53 53 97 ~ ~ 22 42 50 58 71 ~ ~ 31 64 64 52 58 ~ ~ 62 84 91 ~ ~ ~ ~ 55 38 76 47 58 58.38 97.00 21.00

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. 0 10 27 14 4 4 0 0 591 59 49 22 8 4 0 0 227
REL. 0.0 16.9 45.7 23.7 6.7 6.7 0.0 0.0 100.0 100.0 83.1 37.3 13.6 6.8 0.0 0.09.2
ID 0 16 45 47 33 169 0 0 313
ABS. 8 34 11 6 3 2 0 0 64 56 22 11 5 2 0 0 232
REL. 12.5 53.1 17.1 9.3 4.6 3.1 0.0 0.0 100.0 87.5 34.4 17.2 7.8 3.1 0.0 0.0 30.4
ID 12 53 17 18 23 78 0 0 203
ABS. 8 36 11 5 0 0 0 0 60 52 16 5 0 0 0 0 137
REL. 13.3 60.0 18.3 8.3 0.0 0.0 0.0 0.0100.0 86.7 26.7 8.3 0.0 0.0 0.0 0.0 14.9
ID 13 60 18 16 0 0 0 0 108
ABS. 2 34 21 4 1 0 0 0 62 60 26 5 1 0 0 0 165
REL 3.2 54.8 33.8 6.4 1.6 0.0 0.0 0.0100.0 96.8 41.9 8.1 1.6 0.0 0.0 0.013.10
ID 3 54 33 12 8 0 0 0 112
Year
ABS. 18 114 70 29 8 6 0 0 245 227 113 43 14 6 0 0 232
REL. 7.3 46.5 28.5 11.8 3.2 2.4 0.0 0.0100.0 92.7 46.1 17.6 5.7 2.4 0.0 0.0 30.4
ID 7 46 28 23 16 61 0 0 183

Note:

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