Risk Assessment of Heavy Metals in the Drinking Water Source and Marine Benthic from Tobruk Coastline

Coastal areas provide several important benefits to human beings in terms of foodstuff resources and ecology amenities. The human beings activities may have significant adverse effects on the ecosystems health and the sustainability of resources. The heavy metal contamination has become a serious problem in the aquatic environment, including marine sediments. The increased exposure of Tobruk port to liquid waste coming from the ground, oil change stations and marine barges carrying crude oil to and from this city may make it one of the most polluted areas as a result of this negative impact. Liquid waste is one of the main sources of heavy metal pollutants. Tobruk f harbour is one of the most polluted areas due to the adverse effect of effluents from land-based sources. The aim of this study was analyzing the content of heavy metals in seawater, then assessing and evaluating the level of heavy metal contamination its ecological risks. The present study investigated the concentrations of K, Na, and Cd in seawater of Tobruk fishing harbour and surrounding area. The study also identified the major properties of the seawater PH. fifteen sampling stations were selected to conduct the study in Tobruk harbour surrounding area. The samples were taken from the study stations at month from September of 2021 . The samples were taken in September. All metals were determined and analyzed by Flame Atomic Absorption Spectrophotometer in for Cd, and for Na and K were determined by using JENWAY Flame Photometer PFP7 modeled in laboratory of Tobruk – Libya.