We've all heard about the granite countertop scare. Well there still are many myths and truths to be told. As a result of searching the internet, I found a very interesting article on granite countertops that you might find worth the reading. Click on the link below and it will take you to the PDF file that you can even print off on your computer. It is from the Marble Institute of America out of Cleveland Ohio. It is dated March 2007.
There's a lot of information and speculation going on about marble countertops, it's good to be well informed. I hope this article helps relieve some of your worries.
http://www.marble-institute.com/industryresources/truthaboutgraniteradonradiation.pdf