Depleted uranium
Mr Toepfer revealed that Iraq's new government has also asked for help in clearing up hazardous depleted uranium, left by bombs used in the US-led conflicts.
Depleted uranium dust has been blamed for causing severe illness long after ammunition explodes, and became the focus of a propaganda battle under Saddam Hussein's regime.
Britain had handed over detailed maps of locations in southern Iraq where about 1.9 tonnes of depleted uranium was used in 2003, to help the clean-up, Mr Toepfer said.
"We did not get additional coordinates or information from the United States so far," he said. "We need the coordinates otherwise a study or assessment is not possible."
Unep is coordinating the whole project in cooperation with the Iraqi government as part of a wider $4.7m scheme funded by donors including Japan, Germany and Britain.
http://news.bbc.co.uk/1/hi/sci/tech/3656354.stm