what cohort are you in?

pick your birth year. the page tells you the mean childhood lead level you grew up under (ages 0 to 5), what cohort that puts you in, and for each behavior on the lead-cohort dashboard, the calendar year your cohort reaches the modal age and the national rate at that year. compares your cohort to the peak-leaded 1971 to 1976 cohort and the post-phaseout 1995 to 2000 cohort.

optional state dropdown shows your state's CDC Children's Blood Lead Surveillance trajectory 2012 to 2022. ecological, population-level, not a personal diagnosis.

What did your cohort grow up with?

Pick your birth year. The page tells you the mean childhood lead level you grew up under (ages 0-5), what cohort that puts you in, and for each behavior on the lead-cohort dashboard, the calendar year your cohort reaches the modal age and the national rate at that year. Compares your cohort to the peak-leaded 1971-1976 cohort and the post-phaseout 1995-2000 cohort. Optional state dropdown shows your state's CDC Children's Blood Lead Surveillance trajectory 2012-2022. Ecological, population-level. Not a personal diagnosis.

1. Inputs

Birth year
State (optional)

2. Your childhood lead exposure

Mean childhood lead index, ages 0 to 5
--ug/dL
Cohort
--
Where you sit on the 1900-2023 childhood-lead curve
Pink curve: integrated paint plus gasoline childhood blood lead, 1900 to 2023. Vertical line: your birth year. Shaded band: your ages 0-5 window (the years averaged for your index).

4. Your life-stage calendar

Metric
Modal age
Calendar year
Your cohort's value
Leaded cohort comparison
CORE-fit metric (full weight) SEQUESTERED (amber, kept honest)

5. Your cohort vs the leaded vs the post-phaseout cohort

Metric
your cohort leaded 1971-1976 post-phaseout 1995-2000

Find lead in your own home

Knowing your cohort is a start. Knowing what is lead in your own kitchen and toys is the move.

Get the Drip Kit, $50 Browse the whole collection

FluoroSpec is a drop test that lights up lead in pigment on contact. The Drip Kit is the entry option. Built by Eric Ritter so parents can stop guessing.