I recently received an e-mail from my wife (cancer survivor)... both of us roadies, we've frozen numerous water bottles over the summer, and past summers, and this hoax e-mail caused her undue concern -- i'm hoping people pass this along so others do not suffer through the same concern... there are numerous variations, but this is how it went:
'Subject: Cancer news from John Hopkins...
...Johns Hopkins has recently sent this out in their newsletters. This information is being circulated At Walter Reed Army Medical Center. Dioxin Carcinogens cause cancer. Especially breast cancer. Don't freeze plastic water bottles with water in them as this also releases dioxin from the plastic. Dr. Edward from Castle hospital was on a TV program explaining this health hazard. He is the manager.... '
here's the link from Johns Hopkins that sets the record straight: