AT WHARF: Alumina dust at Yarwun’s Fisherman’s Landing wharf.
AT WHARF: Alumina dust at Yarwun’s Fisherman’s Landing wharf. Contributed

Rio Tinto vows alumina overflow poses no dangers to health

A CONCERNED local caught this image of a thick cloud of alumina dust on the Rio Tinto Yarwun wharf earlier this week.

While she wanted to remain anonymous, she said the image showed an "alumina overflow", which happens when skirts break.

"Today it was really bad, just pouring out ... it was like it was snowing," she said.

She said she worked there more than a year ago and it was an issue then.

But a Rio Tinto Yarwun spokesman claimed the dust posed "no threat to health, or harm to the environment".

He said the area was undergoing engineering modifications that would minimise the dust that comes off the wharf.

"It looks intense but it's not, it's a very fine product."