Its brightly colored hot spots showed where the inspector had pressed down hard on the swipe, increasing the pickup of uranium particles.

Its operators can zero in on a uranium particle, inspecting it for visual clues of the way it formed.

Inspectors were allowed to take environmental samples that they will examine for traces of uranium particles.

Contamination of Water These include such factors as the size of the uranium particles and the size of the population exposed, he said.

The inhalation of airborne uranium particles could lead to "unacceptable body burdens".

Inspectors are still unable to specify the origin of all enriched uranium particles found in Iran.

The latest report, in March, said that, surprisingly, depleted uranium particles were "still in the air two years after the conflict's end."

In 2007 and 2008, high enriched and low enriched uranium particles were found in environmental samples taken in Egypt.

Depleted uranium particles, once lodged inside an organism, may cause severe damage to the health not only of military personnel but of civilians as well.

Questions concerning the source of uranium particles found at Dair Alzour remain open.