Table 2: United State National Oceanic Atmospheric Administration's Effect Range Low (ERL) and Effects Range Median (ERM) concentrations for the studied metals (values are in mg/kg dry weight) (after [18,19]).
Metals | ERL (mg/kg) | ERM (mg/kg) |
---|---|---|
Cd | 1.2 | 9.6 |
Cu | 34 | 270 |
Pb | 46.7 | 218 |
Zn | 150 | 410 |
Mn | *** | *** |
Ni | 20.9 | 51.6 |
Fe | *** | *** |
N.B: *** = Values not given.