Quantitative Analysis of Heavy Metals and Organic Compounds in Soil from Deir Kanoun Ras El Ain Dump, Lebanon
Table 3
Guidelines for the maximum permissible limit (MPL) values of selected heavy metals in sewage sludge used as agricultural fertilizer.
Heavy metal
US EPAa mg/kg
CCMEb mg/kg
EECc mg/kg
Franced mg/kg
Average value mg/kg
Pb
840
600
750–1200
800
804
Cd
85
22
20–40
20
39.25
As
75
40–75
-
-
66.25
Hg
17
24
16–25
10
17.88
aUnited States Environmental Protection Agency [23]. bCanadian Council of Ministers of the Environment [24]. cEuropean Economic Community/European Union [25]. dData for France [25]. Where a range is reported, the average value was calculated from the midpoint.