Cadmium is highly toxic and can cause a range of health problems, including:

* Kidney damage: Cadmium accumulates in the kidneys and can lead to kidney failure.

* Bone disease: Cadmium can interfere with calcium metabolism and cause bone pain and fractures.

* Lung problems: Exposure to cadmium fumes can cause lung irritation and inflammation.

* Cancer: Cadmium is classified as a probable human carcinogen, meaning it may increase the risk of certain types of cancer.

Cadmium is found in various sources, including:

* Cigarette smoke: One of the main sources of cadmium exposure.

* Industrial emissions: Cadmium is released into the environment during mining, smelting, and manufacturing processes.

* Food: Cadmium can accumulate in certain foods, like rice, shellfish, and leafy green vegetables.

* Water: Cadmium can be found in drinking water, especially in areas with polluted water sources.

It's important to limit your exposure to cadmium by avoiding smoking, eating a balanced diet, and using water filters if necessary.