Prior archaeological evidence suggests Thasos was one of the region’s most significant ... Previous research – including an analysis of ice cores from Greenland – had detected high levels of lead ...

Prior archaeological evidence suggests Thasos was ... from Greenland – had detected high levels of lead across much of the Northern Hemisphere during Roman times. But the new study adds a ...

Prior archaeological evidence suggests Thasos was ... from Greenland - had detected high levels of lead across much of the Northern Hemisphere during Roman times. But the new study adds a more ...

Prior archaeological evidence suggests Thasos was ... from Greenland – had detected high levels of lead across much of the Northern Hemisphere during Roman times. But the new study adds a ...

about 1,200 years before the previously earliest known evidence of environmental contamination with the heavy metal that is traceable to human activity. "Because lead was released during the ...