For what it's worth, here is the actual chart with blood lead levels: https://www.epa.gov/sites/production/files/2015-10/documents/biomonitoring-lead-data.pdf

For what it's worth, here is the actual chart with blood lead levels: https://www.epa.gov/sites/production/files/2015-10/documents/biomonitoring-lead-data.pdf https://www.epa.gov/sites/production/files/2015-10/documents... IIRC the working draft of that report had a more detailed chart, but I don't see it in the final version for whatever reason.