In 2005, a research and lobbying group called the Environmental Working Group (EWG) performed a study that they called 10 Americans. They analyzed the blood taken from the umbilical cords of ten different babies born in different parts of the U.S.
What did they find? 287 chemicals.
[The study] found 287 industrial chemicals in the samples, nearly half of which are known carcinogens. Also detected were dozens of widely used brominated flame retardants (PBDEs) and their toxic by-products, and numerous pesticides, including DDT and others, which were banned more than 30 years ago.
I guess now we know why babies usually come out crying (I always assumed it was the impending hospital bill).
More at the EWG.
