The highest rates are in the city of Fallujah, which underwent two massive US bombing campaigns in 2004. Though the U.S. initially denied it, officials later admitted
using white phosphorous. In addition, U.S. and British forces unleashed an estimated 2,000 tons
of depleted uranium ammunitions in populated Iraqi cities in 2003.
DU, a chemically toxic heavy metal produced in nuclear waste, is used in weapons due to its ability to pierce through armor. That’s why the US and UK were among a handful of nations (France and Israel) who in December refused to sign
an international agreement to limit its use, insisting DU is not harmful, science be damned. Meanwhile, the Pentagon’s refusal
to release details about where DU munitions were fired has made it difficult to clean up.