Newly released documents prove the previous Federal Government did not do a proper assessment of four sites proposed for a radioactive waste dump in the Northern Territory, the Greens say.

The Rudd Government released most of the assessment documents prepared for the previous Howard Government under a Senate order yesterday.

The Greens Senator Scott Ludlam says an accompanying peer review of the assessment criticises a lack of information about the sites and potential health hazards.

He says the assessments appear to lack detail and gloss over important issues.

"They say there are no critical issues that would have removed any of the sites from further consideration which is remarkable when you consider that one of those sites [is] subject to flooding, one of them is an active seismic zone which is the Muckaty nomination which is hit by earthquakes every now and then," Senator Ludlam said.

"It looks as though it was a very cursory desktop level assessment of the sites that won't stand up under further scrutiny."

The Greens also say one key document, an anthropological report, is missing.

Senator Scott Ludlam says according to the Government, the Resources Minister Martin Ferguson has never seen the report and it cannot be located.

"It's very very peculiar that they've said we don't have this report and we've never seen this anthropological report when in fact the entire case rests on that document," he said.

"So there's more work for us to do in making sure that the Government finally does hand that material over when they can locate it."