THREE people who live near coal seam gas activities in southern Queensland have contracted terminal cancer, and one of them has since died, a state MP says.

Katter's Australian Party member for Condamine Ray Hopper told parliament on Wednesday the residents live within four kilometres from a coal seam gas (CSG) evaporation pond in his electorate.

All three have been diagnosed with pancreatic cancer, he says.

"Sadly, one person has died and the two others have been given just months to live,'' he said.

He called for Health Minister Lawrence Springborg to launch an investigation into whether CSG mining is linked to the cancer cluster.

But Mr Springborg rejected the suggestion that the CSG pond had anything to do with the illnesses.

''(Mr Hopper) shouldn't jump to conclusions,'' Mr Springborg told parliament.

"He should be somewhat less emotional and somewhat more circumspect with regards to those particular issues.

"Because if we are going to investigate matters we need to have the best available information.''

He said he was happy to have public health officials look at the situation.

Mr Springborg said residents at Tara, west of Dalby, had complained of headaches, nose bleeds, vomiting and rashes and believed their health was affected by nearby CSG wells - but a Queensland Health investigation found no such evidence from soil, water and air sampling.