The Environment Protection Authority (EPA) says fluoride from Alcoa’s aluminium smelter at Portland is making kangaroos sick.
The EPA’s Bruce Dawson says the fluoride is being absorbed by the nearby vegetation which is then being eaten by the kangaroos.
He says the fluoride poisons the kangaroos and makes lesions grow on their bones, which renders them lame.
“Once kangaroos have restricted movement [it] has a significant impact on their welfare. So this is something that needs to be managed and avoided.”