Research Article

Investigation into River Sediments Toxicity as a Result of Inappropriate Waste Disposal

Table 4

Toxicity criteria according to AVS, SEM and TOC. (Adapted from [8]).

SEM, AVS, and TOC relationshipToxicity criteria

< 130Toxicity is not likely due to Cd, Cu, Pb, Ni, and Zn.
130 < < 3000Toxicity is uncertain due to Cd, Cu, Pb, Ni, and Zn.
> 3000Toxicity is likely due to Cd, Cu, Pb, Ni, and Zn.
 − AVS ≤ 0Nontoxic.

When  − AVS > 0, organic carbon has to be taken into account according to the expressions in Table 4.