Cleveland, OH — The Marble Institute of America, the trade association representing the natural dimension stone industry, has refuted the findings of a not-for-profit organization whose recent in-home testing concludes that potentially harmful levels of radon are emitted by granite countertop surfaces.

The MIA, whose members include granite and other natural stone suppliers, issued “an alert,” calling attention to claims made by BuildClean, a Houston-based organization that has tested radon levels in a variety of countertop surfaces.

Although BuildClean affirmed the reliability of its testing, the MIA charged that the findings cause undo alarm. The MIA also questioned the objectivity of the testing, which was funded by Cosentino and Cambria Natural Quartz Surfaces.

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