Lead pollution in ancient Rome may have dropped average IQ by up to 3 points, study finds
The Summary
Lead pollution likely dropped the average IQ in ancient Rome by 2.5 to 3 points, a study found.
The research is based on an analysis of lead concentrations in ice cores extracted from Greenland.
The findings offer evidence that lead may have contributed to Rome s downfall, a question historians and experts have debated for decades.
According to recent study, the airborne levels of hazardous lead in ancient Rome were so high that they probably caused the average person's IQ to plummet by 2.5 to 3 points.
The study, which was released on Monday in the Proceedings of the National Academy of Sciences publication, raises long-standing concerns about whether or not lead contamination contributed to the fall of the empire.
After connecting lead discovered in Greenlan...