A large part of the green building focus is on healthy indoor air quality – eliminating toxins, emissions and pollutants that can cause indoor air to be more polluted than outdoors. One common and potentially dangerous health risk inside buildings has recently been found in high levels in
granite finishes. This highly popular countertop choice has become suspect as an
emitter of radiation and an entry point for high levels of
radon gas inside the home.
Read more: Could your granite countertops be leaking radon gas? | Inhabitat - Green Design Will Save the World
http://www.inhabitat.com/2008/07/28/...-gas-exposure/