Editing Toxic heavy metal (section)

=== Cadmium ===
[[File:Cadmium-crystal bar.jpg|thumb|left|99.999% purity cadmium bar and 1 cm<sup>3</sup> cube.]]

{{main|Cadmium poisoning}}

[[Cadmium]] exposure is a phenomenon of the early 20th century, and onwards. In Japan in 1910, the [[Mitsui Mining & Smelting]] Company began discharging cadmium into the [[Jinzū River]], as a byproduct of mining operations. Residents in the surrounding area subsequently consumed rice grown in cadmium-contaminated irrigation water. They experienced [[Itai-itai disease|softening of the bones and kidney failure]]. The origin of these symptoms was not clear; possibilities raised at the time included "a regional or bacterial disease or lead poisoning".{{sfn|Vallero|Letcher|2013|p=240}} In 1955, cadmium was identified as the likely cause and in 1961 the source was directly linked to mining operations in the area.{{sfn|Vallero|Letcher|2013|pp=239–241}} In February 2010, cadmium was found in [[Walmart]] exclusive [[Miley Cyrus]] jewelry. Wal-Mart continued to sell the jewelry until May, when covert testing organised by [[Associated Press]] confirmed the original results.{{sfn|Pritchard|2010}} In June 2010 cadmium was detected in the paint used on promotional drinking glasses for the movie ''[[Shrek Forever After]]'', sold by [[McDonald's Restaurants]], triggering a recall of 12 million glasses.{{sfn|Mulvihill|Pritchard|2010}}