EN23057A review of inorganic contaminants in Australian marine mammals, birds and turtles

Chad V. Jarolimek, Josh J. King, Simon C. Apte , Jane Hall , Anil Gautam, Megan Gillmore and Christopher Doyle

pp. 147-170

Environmental context. Metal concentrations can build up to potentially harmful levels in marine mammals as they are at the top of the food chain. This review summarises the information available on metal concentrations in marine mammals, birds and turtles from around Australia. Despite large data gaps, the available data suggest that metal concentrations are similar to those encountered in other regions of the world.

EN23022Iron dissolution and speciation from combustion particles under environmentally relevant conditions

Cecily Szady , Grace Picarillo , Emily J. Davis , Donata Drapanauskaite, Kristina Buneviciene, Jonas Baltrusaitis and Juan G. Navea

pp. 171-182

Environmental context. Iron-containing combustion particles are likely to contribute to environmental iron deposition, while atmospheric acidic processing of such particles can promote their dissolution. Here we report the surface-mediated dissolution of iron from ashes generated by biomass burning power plants and kilns. Examination of the dissolution process at several environmentally relevant pHs, suggests that pH has little impact on the fraction of bioavailable Fe(II) that dissolves into the aqueous phase, although Fe(III) is heavily pH dependent.