In a 2004 photo, Army Sgt. Richard Ganske uses a bulldozer to maneuver trash into a burn pit in Balad, Iraq. Burn pits were common at U.S. military outposts in Iraq and Afghanistan, where troops incinerated tons of waste every day. (Abel Trevino/U.S. Army)
A long-term study will track health data for veterans who were exposed to fumes from toxic burn pits during the Iraq and Afghanistan wars. The military used open-air burn pits to get rid of garbage.
