In the Middle Ages you could almost not avoid the toxic heavy metal lead if you were wealthy or living in an urban environment, say researchers.

"Lead poisoning can be the consequence of ingesting lead, which is a heavy metal. In the Middle Ages you could almost not avoid it if you were wealthy or living in an urban environment," said Kaare Lund Rasmussen, an associate professor at SDU's department of physics and chemistry.
"But what is perhaps more severe is the fact that exposure to lead leads to lower intelligence of children," said Rasmussen. Researchers found that lead content in the skeletons depended on whether the individual lived in the country or in a town.
"There is a big difference in how much lead the individuals from the cemeteries had in their bodies. This depended on whether they lived in the country or in a town. We see almost no lead in the bones from rural individuals, while the levels of it were high in urban individuals," Rasmussen said.
Glazed pottery was not the only source of lead in the towns. Lead was also present in coins, stained glass windows and lead tiles on the roofs of important buildings.
Drinking water was often collected from the roof, and this may also have been an important source of lead. Rasmussen carried out a series of chemical and anthropological analysis of 207 skeletons from six cemeteries in northern Germany and Denmark.
Source-IANS
MEDINDIA




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