Lead does not readily degrade, either. It is still in the soil, the dust, our building, our foods, et cetera. People seem to be generally less exposed in each s

Lead does not readily degrade, either. It is still in the soil, the dust, our building, our foods, et cetera. People seem to be generally less exposed in each successive generation, however. https://www.efsa.europa.eu/en/efsajournal/pub/1570 https://www.efsa.europa.eu/en/efsajournal/pub/1570