A residue of fertilizer production using some Chinese companies to manufacture drywall panels, may contain traces of uranium and radio.
A home news report have suggested that the chinese drywall inspections imported to the United States contained radioactive material, but no federal or state test has detected.
Copies of the report obtained by Customs show that Los Angeles Times drywall done with radioactive waste was shipped to America in 2006 by at least four Chinese manufacturers and trading firms.
Environmental Protection Agency (EPA) has banned use the substance, called phosphogypsum, in almost all products since 1989.
The EPA says the phosphogypsum, a byproduct of fertilizers containing uranium and radium. The radio is broken down to form radon, a radioactive gas that causes cancer. A scientist interviewed by the Times said the material can cause corrosion.
Drywall is blaming the Chinese for making new homes smell like rotten eggs, run the air conditioning pipes, blackened jewelry and other metal and cause respiratory problems, nose bleeds and headaches.
But the small number of tests made in the drywall have not tried, so far, the product contains any radioactive material.EPA tests done this year show that the sulfur-containing material, unlike the national drywall, gypsum board and made abroad contain 10 times the amount of strontium that the national drywall.
Testing of the Health Department in Florida has shown that the Chinese product has three sulfur compounds that could cause a strong odor.
"The Department of Health of Florida has not reviewed any information to suggest that problems in the home who are suffering from corrosion of copper rĂ¡pica are linked to the use of phosphogypsum in the drywall,’ the spokeswoman said Wednesday Susan Smith.
It is estimated that tens of thousands of homes in Florida and up to 100,000 across the country have been built with imported drywall. By Tuesday, the State Health Department had received nearly 500 complaints associated with the drywall. The problem has led to lawsuits against builders, installers, distributors and manufacturers.
The phosphogypsum is abundant and cheap in China, the Times reported, and Chinese manufacturers have been using for almost a decade. But the building inspection imported drywall was not very common in the U.S. to domestic manufacturers could not handle the increased demand during the bursting of the housing and after active hurricane seasons.













