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Defective Drywall from China may also be Contaminated with Bacteria and Fungi


EMSL Analytical offers multiple testing solutions for imported drywall.

Westmont, NJ

During the last year there have been numerous media reports about imported Chinese drywall causing unpleasant odors, damaging building materials and causing illnesses. On Sunday an expert on building inspections announced at a conference in Orlando that the defective drywall is also full of bacteria and fungus.

According to some reports the defective drywall is in as many as 100,000 homes nationwide. Up until now most drywall problems were related to the presence of iron disulfide (FeS2 pyrite). Hydrogen sulfide (H2S), carbonyl sulfide, sulfur dioxide (SO2), and carbon disulfide (CS2) have also been suspected as culprits.

The building expert reported that the bacteria in the drywall is most alarming and isn’t found in drywall manufactured elsewhere. According to the speaker the bacteria is feeding on organic matter in the drywall and that in return is producing the sulfur gases that have been reported to cause health problems and material corrosion in homes across the country.

EMSL Analytical, one of the nation’s premier environmental and materials testing laboratories, has been actively involved in testing suspect drywall. EMSL Analytical developed a procedure that can accurately compare certain sulfur gasses contained in suspect drywall samples versus control samples. The laboratory can also provide complete bacterial and fungal analysis of any drywall samples to determine if microorganisms are present.

“This latest report of additional problems with Chinese drywall should make homeowners take notice,” reported Joe Frasca, Senior Vice President at EMSL Analytical. “If you suspect your home was constructed with the defective material we suggest you have the drywall tested to determine if it is causing problems in your home,” he continued.

EMSL Analytical is a national leader in materials and indoor air quality testing services. For more information about drywall testing or other testing needs please contact EMSL Analytical at (800)220-3675, visit or email

About EMSL Analytical, Inc.
EMSL Analytical is a leading, national provider of environmental and materials testing services and products to professionals and the general public. The company has an extensive list of accreditations from leading organizations as well as state and federal regulating bodies.


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