[Forside] [Indhold] [Tilbage] [Udskriftsvejledning]

Stofkoncentrationer i regnbetingede udledninger fra fællessystemer

 

 

Table 4.7
Pollutant discharges in urban sewers and catchments from U.S., European and Australian sources, from (Ellis, 1986).
Sewer type Separate storm sewer runoff Combined storm sewer overflows Highway runoff Roof runoff Gully pot liquers Residential areas Commercial areas Light industrial area

Event mean concentrations [mg/l]

TS

21 - 582

237 – 635

28 – 1178

12.3 – 216

15 – 840

112 – 1104

230 – 1894

45 – 345

TVS

26 – 149

-

18 – 86

40 – 88

185

28 – 124

75 – 85

35 – 72

BOD

7 – 22

43 – 95

12 – 32

2.8 – 8.1

6.8 – 241

7 – 56

5 – 17

8 – 12

COD

33 – 265

120 – 560

128 – 171

57.9 – 80.6

25 – 109

37 – 120

74 – 160

40 – 70

NH4

0.2 – 4.6

2.9 – 4.8

0.02 – 2.1

0.4 – 3.8

0.7 – 1.39

0.3 – 3.3

0.03 – 5.1

0.2 – 1.1

Pb

0.03–3.1

0.15 – 2.9

0.15 – 2.9

0.001 – 0.030

0.06 – 0.85

0.09 – 0.44

0.1 – 0.4

0.6 – 1.2

PAHa

29 - 200

12 – 215

365 – 60000

-

-

-

-

-

E.Colib

102 - 104

104 - 106

10 - 103

102

10 - 102

10 - 103

102 - 104

10

Notes: a. ng/l
b. MPN/100 ml
- No data available