There are, bizarrely, no federal guidelines for routine safety testing of flame retardant chemicals.

FORBES: The Chemicals In Your Couch May Pose Serious Health Risks

Authors of that study analyzed dust collected in 16 California homes in 2006 and again in 2011, testing for 49 flame retardant chemicals in household dust (the main route of human exposure to flame retardant chemicals, especially for children).

FORBES: New Studies Find Dangerous Levels Of Toxic Flame Retardants In Household Dust