13.2 C
Byron Shire
August 29, 2026

SCU scientists make worrying discovery about fire-scorched earth

Latest News

Greens urged to back pathway to end native forest logging

Some of NSW’s most respected and long-standing forest campaigners and scientists have today urged the Greens not to support the Nationals' attempt to disallow the Improved Native Forest Management (INFM) method.

Other News

Editorial – Drug-checking saves lives

No-one would tolerate killing six teenagers with methanol-laced alcohol in Australia, as occurred recently in Laos. But in Australia, you can’t check your drugs to see if they’re safe.

Two rescues in one day

Last Friday, Queensland Government Air (QGAir) Rescue 500 was tasked with two separate search and rescues in Tallebudgera Valley.

Going beyond the BBQ

The Men & Family Centre will soon be running a free Beyond the BBQ event in Lismore.

Being un conscious

There is a general belief that consciousness is an entity in itself or something that is non-physical. I don’t...

Climate science meets art at Lismore Gallery

Climate change conversations filled with graphs, reports and grim headlines can be enough to make even the hardiest soul want to hide under the doona. This Sunday, Lismore Regional Gallery is trying a different approach to discussing the issue.

Bangalow community rallying for the Bowlo

A major town rally for Bangalow is planned for Saturday, 19 September at 2pm as the next phase of action to have the Bowlo reopened and back in community hands.

Update:

Echonetdaily sought comment on whether the government were going to take immediate action to investigate these claims independently.

NSW Police and Emergency Services minister David Elliott (Liberal) was asked if he was ‘confident that there will be no increase of cancer rates in firefighters in coming months/years. What research or preparations have been made in this area?’

There was no reply by deadline.

Yet a SafeWork NSW spokesperson replied, ‘SafeWork NSW will work with NSW Fire and Rescue and NSW Rural Fire Service to ensure they are aware of this latest research and review their risk management procedures accordingly.’

They told Echonetdaily, ‘Work Health and Safety legislation places the onus on a PCBU (Person Conducting a Business or Undertaking) to take all reasonable and practicable steps to ensure the health and safety of their workers, this includes staying abreast of the latest research in relation to hazardous substances’.

Original story

Scientists from Southern Cross University have made a startling discovery about the lethal threat of soils scorched by bushfires.

The team, led by Professor Ed Burton, has found the naturally occurring metal chromium 3 can be converted by extreme bushfire heat into the highly toxic and cancerous chromium 6.

Professor Ed Burton of Southern Cross Geoscience is looking at the levels of a toxic element in bushfire affected soil. Image: SCU

Chromium 6 is the substance spotlighted by renowned American environmentalist Erin Brockovich, who blew the whistle on high concentrations in the water supply of her home town in southern California.

Professor Burton’s breakthrough research has confirmed bushfire temperatures of up to 1,000 degrees can endanger human health long after the flames have gone out.

‘We’ve seen bushfires create conditions in the surface soil that transform the safe, naturally occurring chromium-3 into the toxic, cancer-causing chromium-6,’ Professor Burton said.

‘Chromium-6 can cause lung cancer and leach into waterways.’

Professor Burton, an expert on the geochemistry and mineralogy of soils, sediments and groundwater systems, said frontline firefighters were immediately at risk but the contamination of water within catchment areas posed a wider threat.

‘We know that firefighters have higher incidences of chromium in their urine and are more susceptible to cancer than other groups.

‘This research is trying to predict with greater accuracy the potential harm of this carcinogenic toxin and to mitigate the risk to human health by seeking to determine the reach and duration of the post-fire danger zone.

‘The role of high temperatures in potential chemical contamination has been underplayed, so it’s also important to learn which soils are most prone to contamination, and for how long.’

While chromium 3 is a healthy nutrient in humans for insulin, sugar and lipid metabolism, its transformation into the DNA-damaging chromium 6 in bushfires was discovered when Professor Burton’s team used the Australian Synchrotron particle separator in Melbourne to shine a highly-focussed light – millions of times brighter than the sun – on a series of soil and mineral samples.



For four decades The Echo has printed the stories some people loved, some people hated, and some pretended not to read. If you want us to keep telling the truth, the real truth, not the sugar-coated version. We’ll need your support to keep the presses rolling.

If you are a local business owner help us and in turn we help you. All The Echo asks for is advertising, not a free ride. It is every advert in The Echo and on www.echo.net.au, which creates the space for all the stories and coverage of community events, happenings and concerns.

If you are a reader you can become a sponsor of The Echo. Your support keeps the us independent.

Even a small one-off or regular donation from you will help keep the echo’s independent voice alive and strong.

Support Us

Become one of the supporters who helps keep independent, local journalism alive in the Byron Shire by contributing anything from as little as the cost of a coffee each month.

You're Wonderful, Thank you for supporting independent journalism in the Byron Shire

You’re supporting The Echo, thank you

Your contribution is keeping independent, local journalism alive in the Northern Rivers.

Because of supporters like you, we can keep every story free for everyone — no paywall, no exceptions. Your money goes directly to funding our newsroom of 40-odd local workers covering the stories that matter to this community.

Tell us what you think, give us your opinion

The Echo loves your letters and comments and is proud to provide a community forum on the issues that matter most to our readers and the people of the NSW north coast. So don’t be a passive reader, email us your epistles at editor@echo.net.au.

The letters deadline for The Echo is noon Friday. Letters longer than 200 words may be cut. The publication of letters is at the discretion of the letters editor. Please remember to include your full name, address and telephone number.

Online comments are no longer available.

Ballina Council makes decision on Ross Lane

With the absence of all four of its progressive councillors for various reasons, Ballina Council pushed ahead with its agenda at yesterday's monthly meeting, including a decision which is likely to close Ross Lane for months while the road is upgraded.

Mullumbimby puts new governance models first, and now wants to build it

Imagine Northern Rivers says Mullumbimby is the only community across the region to rank new models of governance and decision-making as the number one element of its preferred future, and last week locals gathered to work out how to make it real.

Appeal to locate man missing from Broadwater

Police are appealing for public assistance to help locate a local missing man.

Katie Milne responds to Tweed’s draft housing and employment strategy

The former mayor of Tweed Shire Council, Kate Milne, has shared her submission to Tweed's Draft Growth Management Housing & Employment Strategy.