Cadmium is a rare, soft bluish-white metal, known to cause cancer. It is a common impurity in Zinc.

It is widely used in batteries, plastic products, and pigments, and is found in solder.

Inhalation results in chemical pneumonitis, pulmonary edema, and death.

Lead is a soft, heavy, bluish-white metal with many uses due to its low corrosion rate. It is a neuro-toxin which accumulates in soft tissue and bones. It also caused blood and brain disorders.