From the Washington Post

Hexabromocyclododecane, commonly known as HBCD, is a flame retardant that is starting to give a lot of green builders headaches.

Many people have never heard of this chemical compound, used in polystyrene insulation, but it could be in your house. Indeed, you are likely to be carrying some in your body.

This flame retardant has been found in human breast milk, body fat and blood. In the United States, “everyone has it in their tissues. In Europe, where HBCD is more widely used, the exposure is higher,” said biochemist Arlene Blum, executive director of the Green Science Policy Institute and an expert on brominated and chlorinated flame retardants…

Katherine Salant