The Pentagon needs to study the long-term health effects of exposure to the chemicals inhaled from burn pits at its overseas military bases, the Government Accountability Office says in a report.
While the report, released in September, credited the Department of Defense with improving practices to mitigate the risks of exposure to the burn pits, the department still needs to ensure that "research specifically examines the relationship between direct burn pit exposure and long-term health issues."
The GAO found there hasn't been enough progress on this issue over the past five years, when it first said more study was needed.
"The current lack of data on emissions specific to burn pits and related individual exposures limits efforts to characterize potential long-term health impacts on service members and other base personnel," the report warned.
Open-air burning has always been a mainstay of waste disposal during times of war. But the technology of modern warfare means that such new items as plastic bottles and electronics are being burned, presenting new health risks.
Burn pits were constructed at more than 230 U.S. military bases across Iraq and Afghanistan before their use was restricted in 2009. Although the military gave assurances that the air quality was within safe levels, troops returning home began complaining of problems as early as 2004.
Massive open-air burn pits at the bases billowed the toxic smoke and ash of everything from Styrofoam, metals and plastics to electrical equipment and even human body parts.
The flames were stoked with jet fuel.