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Which birth cohort carries the most skeletal lead?
Estimated additional blood lead (µg/dL) released from bone resorption at age 65-70, by birth year. Combines childhood blood lead exposure from NHANES-era data with age-related bone resorption rates. The 1968 cohort had the worst combination: peak childhood exposure and now entering peak resorption. Source: Todd 2000 (bone lead kinetics); Kosnett 2010 (remobilization estimates); NHANES cohort BLLs.
1968
worst-case birth year: peak childhood lead + now at peak bone resorption age
+2.5 µg
estimated BLL elevation above environmental baseline for the 1968 cohort at age 65
2042
approximate peak of skeletal remobilization wave as 1968-1975 cohort hits 70s