5 facts about 'toxic drywall'

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The term "toxic drywall" popped up on the news radar in 2008, when homeowners in Florida started to get attention over their complaints that their homes smelled like rotten eggs.

It was even worse than a lousy smell, many complained: Their household wiring was turning black, as were their air-conditioners’ evaporator coils, rendering them useless. Others said they had to move out because the odor in the homes was making them sick.

Federal and state investigators started looking into the complaints, which came mostly from Florida and the Atlantic Coast, though homeowners from as far away as California and South Dakota have contacted the federal government with their concerns about the unpleasant smells.