Chinese Drywall Has No Radioactive Threat, Say U.S. Safety Agencies

State and federal officials say homeowners shouldn’t worry about radioactivity from Chinese drywall.

The U.S. Consumer Product Safety Commission asked the U.S. Environmental Protection Agency and the Florida Department of Health to test drywall samples for phosphogypsum, or calcium sulfate.

According to a report released Friday, traces of the material were found but the radioactive levels were no higher than what ordinarily would be found in the natural environment.

Officials are continuing to investigate more than 1,100 drywall-related complaints. Chinese drywall has been blamed for emitting putrid odors and corroding metal air conditioning parts, and homeowners nationwide have complained about nose bleeds, headaches, sore throats and other ailments.