Prehistoric Mummies Poisoned Arsenic-laced water may have killed off coastal peoples in Chile.
Brian Handwerk
for National Geographic News
April 13, 2010
Poison-laced drinking water killed some of the world's oldest mummies, which are found in the harsh northern deserts of Chile, a new study says.
Arsenic, which occurs in high levels in drinking water in Chile's northern Camarones Valley (see map), the deadly element likely poisoned the coastal Chinchorro people for centuries, starting at least 7,000 years ago, mummy-hair analyses show.
"I believe
ancient people were continuously exposed to arsenic by drinking contaminated water with high arsenic levels endemic to the Camarones region," said study leader Bernardo Arriaza of Chile's Universidad de Tarapacá de Arica.
The Chinchorro, who wouldn't have been aware they were ingesting the tasteless and invisible toxin, may have suffered from skin, lung, bladder, and kidney cancers, among other serious effects of long-term arsenic exposure.
More:
http://news.nationalgeographic.com/news/2009/04/100412-chile-oldest-mummies-poison-arsenic/