Global ETD Search

1	Accumulation of trace elements in aquatic food chains due to sea-fill activities. Mohamed, Fathimath January 2015 (has links) Elevated levels of trace elements in the environment are of great concern because of their persistence, and their high potential to harm living organisms. The exposure of aquatic biota to trace elements can lead to bioaccumulation, and toxicity can result. Furthermore, the transfer of these elements through food chains can result in exposure to human consumers. Sea-fill or coastal fill sites are among the major anthropogenic sources of trace elements to the surrounding marine environment. For example, in the Maldives, Thilafushi Island is a sea-fill site consisting of assorted municipal solid waste, with multiple potential sources of trace elements. However, there is limited data on environmental trace element levels in the Maldives, and although seafood is harvested from close to this site, there is no existing data regarding trace element levels in Maldivian diets. Following the Christchurch earthquakes of 2011, Sea-fill Municipal solid waste Trace element contamination Sediment Seawater Aquatic food chain Thilafushi Island Maldives Lyttelton Harbour New Zealand Green-lipped mussel Cockle Pipi Spotty Wrasse Cancer crab Bioaccumulation Biomagnification Trophic transfer potential MPI PTWI Risk assessment Solid phase extraction