Question

Which element is cause of itai itai disease?

• A. $Hg$
• B. $Pb$
• C. $Cd$
• D. $As$

Answer 1

Answer: (C)

$Cd$

Itai-itai disease was the name given to the mass cadmium poisoning of Toyama Prefecture, Japan, starting around 1912. Cadmium poisoning can also cause softening of the bones and kidney failure. The cadmium was released into rivers by mining companies in the mountains, which were successfully sued for the damage. Itai-itai disease is known as one of the Four Big Pollution Diseases of Japan.