Impacts of industrial chronic fluoride toxicity on Australian marsupials

This project investigated the impacts of chronically elevated fluoride intake, due to industrial contamination, on a range of Australian marsupials (kangaroos, wallabies, possums and koalas).

The research found significant bone and teeth lesions in affected animals, including an increased prevalence of degenerative joint disease, excessive bone growth including irregular exostosis (bony lumps) and hyperostosis (widening of bones) and tooth lesions varying from mild discolouration to excessive wear and severe enamel damage. The presence and severity of lesions was directly related to the age of animals and proximity of their home range to the central emission point.

This work provided the foundation for a management plan for macropods around the Portland Aluminium smelter, with a view to mitigating fluoride-associated disease risks in affected populations.

Faculty researchers

Professor Ian Beveridge, Melbourne Veterinary School, the University of Melbourne
Dr Jasmin Hufschmid
Dr Clare Death, the University of Melbourne

Research collaborators

Associate Professor Graeme Coulson, Faculty of Science, the University of Melbourne

Funding

Funded by: Portland Aluminium Alcoa
Grant number: DE180101395
Managed by: The University of Melbourne
Funding period: 2009–2013
Funding amount: $347,800