"We have often heard the argument that "safe" FRs can be used to meet an open flame standard. Our research shows that the functionality required for a chemical to act as FR translates to a chemical or chemical mixture that is toxic and/or environmentally persistent. Moreover, the most economical FR used to meet open flame tests in upholstered furniture have a very high probability of being toxic and/or persistent.
There is a time lag of many years between the introduction of a "new" flame retardant and demonstration of its environmental and/or health consequences. While research is being conducted to investigate the hazard/safety of the flame retardants, that chemical is used to meet flammability standard in new products".
Professor Miriam Diamond, Department of Earth Sciences, University of Toronto.