Depleted uranium is most dangerous when it burns, creating a fine dust which is easily airborne. Left in the soil, the metal will quickly oxidize and enter the water and food chain. The clean up of testing grounds in the United States has been costed at $1000 per cubic meter. In munitions, depleted uranium is usually alloyed with metals such as titanium, niobium, molybdenum or beryllium. Beryllium dust is itself known to cause severe respiratory problems. Some batches of depleted uranium are contaminated with spent nuclear fuel. This means they contain small amounts of plutonium, americanium, neptunium, telechnecium and U-236. Anti- tank penetrators analyzed in Kosovo by the United Nations Environment Programme (UNEP) found definite traces of U-236 and plutonium 239/240. Damacio Lopez, director of the International Depleted Uranium Study Team, took readings of penetrators and holes in tank armour in Iraq in January 2001 and found readings as high as 2 100 - 2 450 counts/minute. He himself received radiation burns.

An urgent question to put to the US and UK governments while they threaten to launch another attack on Iraq, is how much depleted uranium is being used in current weaponry? Both governments have long since admitted to its use in anti tank penetrators and tank armour and it is now known to be used in shape charged warhead technology. According to Jane’s web site , depleted uranium is also used to increase the penetration effect of some guided weapons. There is a high probability that it is the main component of the advanced unitary penetrator war heads used in guided bomb systems. These were used extensively in Afghanistan and will be used again in Iraq. With weights between 100 - 1500 kg and a deep penetrating effect, the result could mean the flooding of ground water systems with large amounts of radioactivity.