This wouldn't make sense, lead content in blood has been falling from about 15ug/dl in the 1970s to 1-2ug/dl in 2007[1] [1] https://www.ncbi.nlm.nih.gov/pmc/ar

This wouldn't make sense, lead content in blood has been falling from about 15ug/dl in the 1970s to 1-2ug/dl in 2007[1] [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1797860/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1797860/