In a letter on behalf of Arab ambassadors accredited in Austria, Saudi ambassador Prince Mansour Al-Saud expressed "our deep concern regarding the information ... that traces of depleted uranium have been found in Palestinian victims."
A final draft of the letter was made available to The Associated Press on Monday. It urgently called on IAEA Director General Mohammed ElBaradei to carry out a "radiological and physical assessment in order to verify the presence of depleted uranium in the weaponry used by Israel ... in the Gaza Strip."
Officials at the Israeli mission to the UN nuclear watchdog said they were in no position to comment without having seen the letter.
IAEA spokeswoman Melissa Fleming confirmed receipt of the letter and said a response might be issued later in the day.
The letter - which spoke of medical and media sources as the origin of its allegations - appeared to be alluding to health concerns related to depleted uranium but the effects of exposure to the substance are unclear.
An IAEA article on the issue says that while the substance is "assumed to be potentially carcinogenic ... the lack of evidence for a definite cancer risk in studies over many decades is significant and should put the results of assessments in perspective."
Still, says the article, "there is a risk of developing cancer from exposure to radiation emitted by... depleted uranium. This risk is assumed to be proportional to the dose received."
It is not the first time Israel has been accused of using ordnance containing depleted uranium, which makes shells and bombs harder and increases their penetrating power. The Israeli army declined comment. But the U.S. and NATO have used uranium-depleted rounds in Bosnia and Iraq.
According to the World Health Organization, the weapons are lightly radioactive, though under most circumstances, use of DU will make a negligible contribution to the overall natural background levels of uranium in the environment.
But researchers have suspected depleted uranium may be behind a range of chronic symptoms suffered by veterans of the 1990-91 Gulf War. Some of the symptoms include memory and thinking problems, debilitating fatigue, severe muscle and joint pain, depression, anxiety, insomnia, headaches and rashes.
Syria, which is being investigated by the Vienna-based agency for alleged secret nuclear activities, says traces of uranium found by IAEA experts at a site bombed by Israel jets Sept. 6, 2007 likely came from bombs or missiles used by the Israelis.
The Israelis have denied using such weaponry in that raid, and on Monday two diplomats accredited to the IAEA and familiar with its Syria investigations told the AP that the agency has virtually ruled out Israeli munitions as the source of the uranium. They asked for anonymity for discussing confidential information.
The IAEA investigation is based in part on intelligence from the U.S., Israel and a third, unidentified country, alleging that the bombed site was a nearly completed nuclear reactor built with North Korean help and meant to produce plutonium - which can be used as the payload of nuclear weapons.
The uranium traces were revealed by an analysis of environmental samples collected by IAEA experts during a visit to the site, in a remote part of the Syrian desert. Since that initial trip in June 2008, Syria has refused or deflected requests for follow up inspections both to the site and others allegedly linked to it.
Arabs: Israel ammo in Gaza had depleted uranium
Jan. 19, 2009, Associated Press, THE JERUSALEM POST
Arab nations are accusing Israel of attacking Gaza with ammunition containing depleted uranium, and they are calling for a UN investigation of reports that traces of the substance has been found in victims of shelling carried out Operation Cast Lead.
The nations appear to be alluding to concerns of a health hazard through radiation emitted by depleted uranium, which makes munitions harder and more effective. The IAEA says the material is potentially carcinogenic, but says long-term studies have not definitely established that.
The allegations were made in a letter Monday written on behalf of Arab ambassadors accredited in Austria and made available to The Associated Press. It expresses concern about alleged information that traces of depleted uranium have been found in Palestinian victims.