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can the chemicals in the toy result in an exposure, and is this exposure associated with a health risk.  In toxicology, this is described in the following equation: Risk = Exposure x Hazard

hildren under about 3 years of age often mouth toys and other objects.  Mouthing presents a high opportunity for exposure to chemicals, as well as accidental swallowing.  For example, some toy jewelry contains levels of lead and cadmium.  While these toys may be safe if they are only touched (lead and cadmium don’t easily penetrate human skin), they may not be safe if mouthed, since lead and cadmium dissolve in saliva and then get swallowed.