Abstract Heavy metal concentration in Tympanotonus fuscatus that were collected from the mangrove swamps of the Nun River estuary in the Niger Delta were analyzed in September, 2019. The samples were evaluated using Atomic Absorption Spectrophotometer (AAS). The concentrations ranged from 0.27mgkg-1 to 0.59mgkg-1, 1.57mgkg-1 to 3.27mgkg-1, 0.12mgkg-1, 0.22mgkg-1 and 0.83mgkg-1 to 1.12mgkg-1 for Cadmium (Cd), Lead (Pb), Copper (Cu) and Zinc (Zn), respectively. The hierarchy in the heavy metal concentration in T. fuscatus from all the three sampling stations indicated that Pb>Zn>Cd>Cu but Hg was not detected. There is need to advocate environmental surveillance of the creeks in order to achieve good sediment quality and contamination-free T.fuscatus for safe human health.
Keywords Heavy Metal, Concentration, Nun River and T. fuscatus.