Tungsten Alloy Munitions Pose Unforeseen Threat

       In response to concerns about the human and environmental health effects of materials used to produce munitions, countries including the United States have begun replacing some lead- and depleted uranium–based munitions with alternatives made of a tungsten alloy. But this solution may not be the “magic bullet” it was once envisioned to be. Researchers from the Armed Forces Radiobiology Research Institute and the Walter Reed Army Institute of Research now report that weapons-grade tungsten alloy produces aggressive metastatic tumors when surgically implanted into the muscles of rats [EHP 113:729–734]. These findings raise new questions about the possible consequences of tungsten exposure, and undermine the view that tungsten alloy is a nontoxic alternative to depleted uranium and lead. 

     In my opinion, nothing is perfect.Until now, compared to other material like uranium and lead, tungsten alloy is more non-toxic and environmental friendly.So I think it is the best choice.If you want to know more details about it, please go to http://www.tungsten-alloy.com