Western Australia regulator finds magnetite from industrial activities contributes to Geraldton dust pollution

In short:

A state government investigation into dust complaints in Geraldton has found magnetite from "industrial activities" as a contributor to dust polluting homes and businesses.

The Department of Water and Environmental Regulation says it will meet with the Mid West Ports Authority and Chinese-owned Karara Mining in a bid to change some operating licences conditions to reduce dust impact on the coastal community.

What's next?

The Department of Water and Environmental Regulation is still investigating other dust complaints.

Western Australia's environmental regulator says it will look to change the operating licences of a Chinese-owned mining company and the Mid West Ports Authority after months of investigation into dust pollution around Geraldton.

Investigators from the Department of Water and Environmental Regulation (DWER) began examining the nature and source of dust earlier this year, after a surge in complaints of red, black and pink dust from residents and businesses around the city, with complaints localised around its port.

Iron ore is the port's main export, with Chinese‑owned Karara Mining, which ships magnetite concentrate, and WA‑based Fenix Resources, which exports hematite, the two key players.

In a statement released today, DWER said its investigation of the "black dust" complaints found magnetite dust emitted from "certain industrial activities" was a contributor to overall dust pollution around the city.

"As a result of this investigation, the department is engaging with Karara Mining Limited and the Mid West Ports Authority in relation to potential licence amendments to deliver improved dust management outcomes," a DWER spokesperson said.

DWER did not disclose the changes it would ask the port and miner to make.

Long-running community concern

There have been consistent calls from Geraldton residents and community leaders for wagons pulled by Karara's trains, which carry its iron ore from mine to port, to be fully covered.

In a region known for its strong southerly winds, the path from mine to port loops to the south of schools, hospitals and houses.

Residents have previously told the ABC that black dust picked up by the winds was coating their homes and businesses, and costing thousands of dollars to clean.

DWER said its investigation into the separate complaints around pink and red dust were ongoing, but nearing completion.

"While substantial information has been assessed, further technical analysis is needed before conclusions can be reached regarding other dust sources or potential regulatory action," DWER said.

"Such investigations can take time to ensure evidence is thoroughly assessed, findings are supported by evidence and processes are fair and defensible."

Both Karara Mining and Mid West Ports have been contacted for comment.