Detailed overview of ambient air pollution valuis from individual stations

773 - PHA4-Branik

Year: 1997
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 773 - PHA4-Branik
Code:CZ04CMBRA
Institution:CHMI
Region:Hlavni mesto Praha
District:Praha 4
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 132 136 96 96 72 101 224 326 121 112 113 74 198 258 264 186 187 115 77 256 150 66 140 197 118 54 123 86 120 99 63 140.59 325.63 31.00
2 66 149 167 73 68 75 154 125 96 63 46 41 29 77 41 78 179 38 46 49 38 69 137 67 26 37 54 77 ~ ~ ~ 77.28 179.04 28.00
3 107 38 70 78 135 149 144 123 109 164 181 183 68 54 32 45 71 51 53 51 56 42 30 83 96 67 53 ~ 22 26 85 82.22 183.31 30.00
4 112 108 59 29 25 24 55 91 94 62 30 26 49 50 28 37 59 48 29 46 80 53 72 69 43 72 59 60 63 44 ~ 55.89 111.81 30.00
5 71 62 72 61 47 46 86 49 35 52 84 50 69 118 106 96 45 55 81 60 56 59 48 28 71 58 30 47 36 31 30 59.37 118.46 31.00
6 50 64 65 92 49 68 46 47 74 110 104 119 61 49 70 53 103 112 60 48 37 54 54 53 100 86 79 62 82 73 ~ 70.81 118.72 30.00
7 79 52 77 62 48 27 34 44 61 76 78 55 78 99 73 94 88 48 30 36 68 ~ 66 79 67 33 54 91 67 98 66 64.28 99.18 30.00
8 73 53 79 101 77 75 70 72 70 75 80 78 115 103 70 44 61 138 96 138 135 86 70 88 124 134 121 71 55 47 95 86.81 138.19 31.00
9 132 131 115 105 82 51 53 59 38 55 117 101 46 56 116 149 103 134 74 71 90 151 158 98 131 121 73 122 132 92 ~ 98.51 157.51 30.00
10 63 29 46 37 102 209 145 105 50 55 31 45 59 55 74 104 147 141 127 80 125 172 106 54 25 35 107 111 157 167 81 91.64 208.52 31.00
11 129 125 108 108 193 341 321 123 135 230 ~ 169 94 107 62 59 82 69 181 218 219 105 130 128 106 114 111 146 171 105 ~ 144.35 341.11 29.00
12 93 90 86 62 108 67 80 139 199 55 67 62 40 147 45 64 52 62 ~ 72 244 213 139 37 23 26 36 62 67 128 175 91.34 244.10 30.00

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 23 24 20 11 4 1 0 89 83 60 36 16 5 1 0 326
REL. 6.7 25.8 26.9 22.4 12.3 4.4 1.1 0.0 100.0 93.3 67.4 40.4 18.0 5.6 1.1 0.08.1
ID 6 25 26 44 61 112 140 0 419
ABS. 11 48 23 9 0 0 0 0 91 80 32 9 0 0 0 0 119
REL. 12.0 52.7 25.2 9.8 0.0 0.0 0.0 0.0 100.0 87.9 35.2 9.9 0.0 0.0 0.0 0.0 12.6
ID 12 52 25 19 0 0 0 0 109
ABS. 2 26 38 23 2 0 0 0 91 89 63 25 2 0 0 0 158
REL. 2.1 28.5 41.7 25.2 2.1 0.0 0.0 0.0100.0 97.8 69.2 27.5 2.2 0.0 0.0 0.0 23.9
ID 2 28 41 50 10 0 0 0 134
ABS. 5 23 14 31 9 6 2 0 90 85 62 48 17 8 2 0 341
REL 5.5 25.5 15.5 34.4 10.0 6.6 2.2 0.0100.0 94.4 68.9 53.3 18.9 8.9 2.2 0.0 6.11
ID 5 25 15 68 50 166 277 0 610
Year
ABS. 24 120 99 83 22 10 3 0 361 337 217 118 35 13 3 0 341
REL. 6.6 33.2 27.4 22.9 6.0 2.7 0.8 0.0100.0 93.4 60.1 32.7 9.7 3.6 0.8 0.0 6.11
ID 6 33 27 45 30 69 103 0 316

Note:

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

Detailed overview of ambient air pollution valuis from individual stations - selection station