Toxicologist : Months of more investigating needed before determining health threat . Florida Health Department : Tests show strontium sulfide in Chinese drywall . Comment: Earlier testing by ENVIRON International , a private consulting firm hired by a Florida-based homebuilder , found that certain drywall manufactured in China was emitting sulfur gases capable of ruining copper coils in air-conditioning systems . Homeowners : Smelly gas from drywall corroding metal , ruining appliances .
Toxicologist : Months of more investigating needed before determining health threat . Florida Health Department : Tests show strontium sulfide in Chinese drywall . Comment: Homeowners : Smelly gas from drywall corroding metal , ruining appliances .