The detrimental effects of modern lead exposure on human health are widely recognized. Evidence from the Roman era indicates substantial lead exposure that potentially impacted human health more than 2,000 y ago. The most significant exposure for the rural, nonelite population may have been to background air pollution from silver mining and smelting that underpinned the Roman economy. Using detailed records of Roman-era lead pollution measured in Arctic ice cores and atmospheric modeling, we show that lead emissions from these activities elevated air concentrations throughout Europe. Based on modern epidemiological studies, this air pollution enhanced childhood blood lead levels (BLLs) by about 2.4 µg/dl leading to widespread cognitive decline including an estimated 2.5-to-3 point reduction in intelligence quotient.
I find it insane if indeed they managed to increase lead levels on such a scale at that time in history. I knew they were well organised and an industrial power house, but increasing lead levels more than we did with leaded gasoline is … impressive albeit in a sad way.
Immensely sad. They knew about the poison, but didn’t understand it was all around them.
Europe wouldn’t reach the industrial output of the Roman Empire until ~1600 AD - ~1800 AD - and by that time, silver smelting methods were more advanced and less lead-heavy.
Sure do! Cutting edge stuff - published just in 2025!
https://www.pnas.org/doi/10.1073/pnas.2419630121
Immensely sad. They knew about the poison, but didn’t understand it was all around them.
Europe wouldn’t reach the industrial output of the Roman Empire until ~1600 AD - ~1800 AD - and by that time, silver smelting methods were more advanced and less lead-heavy.