The aim of this study was to assess accumulation of heavy metals in tissues of Periwinkle (Tympanotonus fuscatus var radula (L.) obtained from Azuabie creek using Okujagu creek as control location. Fifty samples were collected from each site for three months (October-December 2015). Atomic Absorption Spectrophotometric technique was used in heavy metal analysis. Mean metal concentrations in sediments were as follows Zn: 178.08 mgkg -1 ; Cd: 0.3 mgkg -1 ; Cr: 14.27 mgkg -1 and Pb: 18.75 mgkg -1 . While those in Periwinkle tissue with biosediment accumulation factor (BAF) in parenthesis were thus Zn: 24.42 mgkg -1 (0.137); Cd: 0.02 mgkg -1 (0.067); Cr: 1.57 mgkg -1 (0.11) and Pb 0.01 mgkg -1 0.001). The result of BAF of metals indicated low values which could be related to assimilation and excretion rate of heavy metals in the organisms examined. Variations in the concentration of Zn in the gastropod tissues showed significant difference (p<0.01) between sites, likewise, Cr (p<0.001) and Cd (p<0.05). In conclusion, comparison between the two creeks showed that tissue samples from St1, St2 and St3 (Azuabie creek) had higher concentration of metals in relation to the control station (Okujagu creek) indicating potentials for accumulation, mainly due to differences in anthropogenic activities. Cr, Cd and Pb concentrations in tissue had mean values less than the recommended limits in seafood by FAO/WHO however, regular monitoring is required to observe perturbations.

identified major waste inputs into the creek to include run-off from surrounding lands, animal wastes from a major abattoir, human/domestic waste from a high density settlements along ORIGINAL RESEARCH ARTICLEArchives of Agriculture and Environmental Science 3(1): 81-85 (2018) https://doi.org/10. 26832/24566632.2018.0301012 This content is available online at AESA Archives of Agriculture and Environmental Science The present investigation was carried out to assess the heavy metals pollution in surface sediments of a tidal creek in the Niger Delta, Nigeria. Sediments obtained from Azuabie creek were examined for heavy metals viz., Cd, Cr, Pb and Zn pollution using the Okujagu creek as a control point. Three stations were established on the Azuabie creek while the control creek had one station. Sediments samples were collected in duplicates on a monthly basis for three months was slightly >1. Generally, EF and I geo values were lowest at the control station compared to other stations. The study concluded there was low to moderate level of contamination indicating heavy metal input from anthropogenic origin was found in the study area.