The logic is kind of funny. A chemical is found in a yoga mat, so it’s bad for you. Well, we use salt on the roads to melt ice. Must be bad for you. I wash my car with water, must be bad for you.
To be fatal, the chemical needs to be 10-15% of your total diet. Even if you eat subway 3 times a day, the amount you’re eating isn’t measurable. You’re eating thousands of times more rat poop and that kind of thing instead.
The Office for Science and Society blog (which is awesome, BTW) takes on the issue: blogs.mcgill.ca/oss/2014/02/06/y … ng-agents/
“Azidocarbonamide is allowed in bread to the extent of 45 parts per million. That means a Subway sandwich, one of the targets of this attack, has an insignificant 10 milligrams. There’s more rodent poop remnants and insect fragments in there. Yes, azidocarbonamide has toxicity in dogs when fed at levels of about 5-10% of their diet. The percent of the human diet is so trivial that it cannot even be calculated. As far as the asthma connection goes, well, that refers to inhaling the powder in an occupational setting. It has absolutely nothing to do with the trace amounts in bread. And the fact that this chemical is used in the manufacture of some plastics and the soles of shoes? Another scientifically bankrupt argument. Salt is used to melt ice on the street. That doesn’t mean it is dangerous in food.”
It’s the same basic problem as the Fukushima one, or the Asptertame, or the WiFi one: quantity. 45 parts per million isn’t going to do anything.