Since there are now at least two confirmed cases whereby "Chinese" symptoms have been identified in domestic drywall, the favored term has become "tainted drywall." Of course, domestic stuff so implicated is a very troubling finding, and no reasonable explanation has yet been proffered.
There are those who believe that sulfide-emitting drywall is ultimately caused by bacteria, and this etiology seems to make sense. Recent studies have shown that samples taken from tainted product will culture as much as 10,000 times more sulfate-reducing bacteria as non-affected drywall. Moreover, the observation that tainted drywall requires somewhat elevated temperatures and humidity to become problematical is what one would expect if he were growing bacteria.
If the cause IS bacterial, then remediation can be effected by treatment with chlorine dioxide, which has the additional property of removing the sulfide smell.
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