The head of Adani Australia has said he does not believe a Shorten government poses a risk to the company's proposed Carmichael coal mine in central Queensland.

Key points: Adani Australia CEO Lucas Dow says Labor has given assurances it will not reject existing approvals if it wins government

Adani Australia CEO Lucas Dow says Labor has given assurances it will not reject existing approvals if it wins government LNP member for Capricornia Michelle Landry says Labor is not doing enough to support Adani

LNP member for Capricornia Michelle Landry says Labor is not doing enough to support Adani Capricornia Labor candidate Russell Robertson signed a pledge organised by the CFMEU mining union to support coal mining

"I think [Federal Labor] has been crystal clear that if they are to form government they won't be in the habit of creating sovereign risk by ripping up the existing approvals," Adani Australia CEO Lucas Dow told 7.30.

He said he was pleased by recent assurances given by Opposition Leader Bill Shorten and his Treasury spokesman Chris Bowen.

"Mr Shorten and Mr Bowen have been at pains to say ... they won't be creating sovereign risk and potential compensation requirements," Mr Dow said.

The LNP's campaign in marginal seats in north and central Queensland has been critical of Labor's mixed messages on the Adani project, with billboards referring to "Labor's war on coal".

"I have a coal miner running against me who can't say the words, 'I support Adani'," said the LNP's member for Capricornia, Michelle Landy.

"He's been shackled by his masters down in Brisbane and Canberra."

LNP MP for Capricornia, Michelle Landry. ( ABC News: Marco Catalano )

Her Labor opponent, coal miner Russell Robertson, said the LNP was engaging in a "crazy scare campaign".

"I've worked in a lot of coal mines," Mr Robertson said.

"If [Adani] wants to develop it, they should, but they should meet the necessary requirements of every other coal mine I've worked in."

Mr Robertson last week signed a pledge organised by the CFMEU mining union to support coal mining jobs and mining developments that meet regulatory requirements.

Federal Government approval comes on eve of election call

Adani Australia CEO Lucas Dow. ( ABC News: Chris Gillett )

Adani's last federal environmental approval was granted just before the federal election was called, despite only qualified approval from the CSIRO.

The scientific body said it was "satisfied" with Adani's latest ground water modelling, "while also acknowledging there were still some issues that need to be addressed in future approvals, particularly confirming the source of the ecologically important Doongmabulla Springs".

Environment groups said the process rang alarm bells, with reports the Environment Minister was being aggressively lobbied by Queensland senators.

"We don't really know why these approvals were granted in such a rush," said Christian Slattery, from the Australian Conservation Foundation.

"We have big concerns about the integrity of that process given that there was substantial pressure on the minister from other members of the Government."

Mr Dow said the criticism was unfounded.

"It's a rigorous process the Federal Department of Environment and Energy has undertaken," he said.

"They've involved the CSIRO and Geoscience Australia, two of the most pre-eminent science organisations in Australia. I find it hard to believe those organisations simply would have buckled and provided a different view given the timing context."

Mr Dow was in Canberra a week before the environmental approval was issued, but denied he directly lobbied the Prime Minister.

"We provided updates on both sides of politics to give people clarity on exactly where our project's up to," he said.

Qld Government should move faster, Labor candidate says

Labor candidate for Capricornia, Russell Robertson. ( Facebook: Russell Robertson )

The Adani project still needs two more environmental approvals from the Queensland State Government, involving groundwater modelling and a plan to manage the endangered black-throated finch.

"The reality for us is we've got those federal approvals, we need to move forward. It's the Queensland State Government that now needs to get on with it," Mr Dow said.

"I think it's unheralded the space that we're in. I mean the sort of scrutiny that we've seen on these management plans is unprecedented."

Mr Robertson agreed the State Government could move faster.

"I think they should. But again, you wouldn't expect a process like this, as complicated as this, to be done in a fortnight," he said.

Ms Landry said it was time for the Queensland Government to back the project.

"How much scrutinising can this mine actually have?" she said.

"This has been going on for eight years. Every time they're just about ready to have things signed off, the Queensland State Labor Government moves the goalpost," she said.