Peter Suciu, reporting for redOrbit.com:
“Scientists have found atmospheric contamination, which is due to heavy metals and is currently a severe problem throughout the world, is not a recent fact and can be traced back to pre-historic times. This explains how the Romans may have contaminated the lake. The team of researchers, which included scientists from the Andalusian Institute of Earth Sciences and the University of Granada, discovered evidence of atmospheric pollution caused by lead. The team found traces of lead in a lagoon in Sierra Nevada (Granada) at an altitude of 3,020 meters and determined it was the result of pollution.”
Humans have been using lead for a long time, and we keep making the same mistakes with this toxic element.
