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.

Lead air pollution, researchers now suggest, was so pervasive during the height of the Roman Empire that it may have lowered ...

Lead pollution in ancient Rome was so high that it dropped the population’s IQ by around 3 points, if not more. Elites were exposed to lead through water pipes, cooking pots, bath tubs ...

Lead pollution in ancient Rome was so high that it dropped the population’s IQ by around 3 points, if not more. Elites were exposed to lead through water pipes, cooking pots, bath tubs, cosmetics and ...