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Humans normally absorb cadmium into the body either by ingestion or inhalation Dermal exposure (uptake through the skin) is generally not regarded to be of significance

2% to 6% of the cadmium ingested is actually taken up into the body. Factors influencing cadmium absorption are the form in which cadmium is present in the food, and the iron status of the exposed individual. In contrast, from 30% to 64% of inhaled cadmium is absorbed by the body, with some variation as a function of chemical form, solubility and particle size of the material inhaled.

a greater proportion of inhaled cadmium is retained by the body than when cadmium is taken in by ingestion.

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.

toxic levels of lead, cadmium, antimony and phthalates, said this year's "Trouble in Toyland" report from the U.S. Public Interest Research Group (PIRG).

f antimony, a toxic metal that has been classified as a cancer-causing agent.

Phthalates are chemicals suspected to cause developmental health effects. Cadmium is a toxic metal that can cause learning disabilities and kidney problems.