Flame retardants may leach from your walls

Flame retardants may leach from your walls
http://www.sfgate.com/health/article/Flame-retardants-now-seen-as-health-risk-4248112.php

"Couches throughout the nation have become notorious for containing flame-retardant chemicals that may do more harm than good.  Now, it turns out, those chemicals may also be leaching from the walls that surround you.  Because of laws passed in the 1970s, many homes and workplaces built in the United States since then contain foam insulation doused with flame retardants."