Detailed overview of ambient air pollution valuis from individual stations

Year: 1998
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station: 629 - Pha5-Reporyje
Code:CZ05HSREP
Institution:Public Health Service
Region:Hlavni mesto Praha
District:Praha 5
IHd: 100
Measure method:trithanolamine spectophotometry
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 76 40 10 47 ~ ~ 20 19 23 52 132 75 56 105 59 35 36 52 37 51 13 70 19 26 172 316 217 94 80 174 28 73.59 316.00 29.00
2 152 71 73 228 170 173 30 91 72 123 58 57 60 48 47 45 71 115 87 157 94 48 87 52 97 37 21 35 ~ ~ ~ 85.68 228.00 28.00
3 51 16 24 34 17 ~ 36 34 23 96 59 42 32 18 47 51 23 107 45 14 22 48 52 51 117 102 50 72 62 119 129 53.10 129.00 30.00
4 88 16 37 22 36 35 38 72 87 41 56 30 75 71 22 46 15 19 13 30 31 16 37 37 19 7.00 7.00 13 26 81 ~ 37.43 88.00 30.00
5 69 52 15 22 33 28 62 50 45 37 30 45 41 31 46 ~ 25 39 46 ~ 21 7.00 15 17 23 40 22 45 13 44 77 35.86 77.00 29.00
6 37 35 62 30 ~ 47 22 19 11 11 8.00 16 18 57 28 ~ 29 48 72 57 52 28 58 51 81 44 37 30 43 59 ~ 38.93 81.00 28.00
7 57 78 38 31 24 41 55 37 25 7.00 33 10 29 24 ~ ~ ~ ~ ~ 78 ~ ~ 17 ~ 12 ~ 11 13 8.00 23 24 30.68 78.00 22.00
8 9.00 24 17 17 26 11 9.00 15 49 20 ~ 93 73 69 53 44 55 ~ 40 42 42 18 17 15 15 36 ~ 70 35 ~ 55 35.89 93.00 27.00
9 21 ~ ~ ~ ~ ~ 28 38 69 54 33 54 49 51 73 14 12 13 17 14 25 ~ 181 62 86 34 66 23 ~ 92 ~ 48.22 181.00 23.00
10 44 50 54 34 30 22 26 41 38 15 7.00 23 24 45 47 55 33 74 ~ 75 19 29 ~ 13 28 14 13 23 33 ~ 13 32.93 75.00 28.00
11 26 26 87 45 96 125 98 107 88 61 35 75 54 25 ~ ~ 38 144 91 19 446 213 315 81 58 110 136 193 241 ~ ~ 112.33 446.00 27.00
12 45 87 77 ~ ~ 97 103 30 155 168 122 48 60 72 49 60 67 29 39 90 75 75 113 ~ 37 25 43 48 85 ~ ~ 73.04 168.00 26.00

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. 19 34 16 9 6 2 1 0 87 68 34 18 9 3 1 0 316
REL. 21.8 39.0 18.3 10.3 6.8 2.2 1.1 0.0 100.0 78.2 39.1 20.7 10.3 3.4 1.1 0.026.1
ID 21 39 18 20 34 57 143 0 335
ABS. 41 36 10 0 0 0 0 0 87 46 10 0 0 0 0 0 88
REL. 47.1 41.3 11.4 0.0 0.0 0.0 0.0 0.0 100.0 52.9 11.5 0.0 0.0 0.0 0.0 0.0 1.4
ID 47 41 11 0 0 0 0 0 100
ABS. 38 23 10 0 1 0 0 0 72 34 11 1 1 0 0 0 181
REL. 52.7 31.9 13.8 0.0 1.3 0.0 0.0 0.0100.0 47.2 15.3 1.4 1.4 0.0 0.0 0.0 23.9
ID 52 31 13 0 6 0 0 0 105
ABS. 24 24 18 8 3 2 1 1 81 57 33 15 7 4 2 1 446
REL 29.6 29.6 22.2 9.8 3.7 2.4 1.2 1.2100.0 70.4 40.7 18.5 8.6 4.9 2.5 1.221.11
ID 29 29 22 19 18 61 154 771 1107
Year
ABS. 122 117 54 17 10 4 2 1 327 205 88 34 17 7 3 1 446
REL. 37.3 35.7 16.5 5.1 3.0 1.2 0.6 0.3100.0 62.7 26.9 10.4 5.2 2.1 0.9 0.321.11
ID 37 35 16 10 15 30 76 191 413

Note:

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