Sediment exposure test
3.2.1. Accumulation of heavy metals in snail organs
The concentration order of heavy metals in sediments during the
60-day experiment was Fe4Mn4Zn4Cu (Table 4). When concentrations
in snail tissues were examined, Fe and Mn occurred at
significantly higher concentrations in the digestive gland (Po0.05).
There were no significant differences in Cu and Zn levels accumulated
among the studied organs (P40.05; Table 4).