Researchers study dust

November 11, 2009 But, a new study suggests, this dirt may do more than aggravate allergies. Research in the journal Environmental Science and Technology suggests dust may pose a little understood health threat. Since it originates from outside, it may contain lead, arsenic and other potentially harmful substances.

Researchers at the University of Arizona say dust-contaminated toys and other objects can end up in the mouths of young children. They are hoping that a specialized computer program will help evaluate ways to reduce these contaminants and human exposure.

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