Lead Science: Interactive Charts & Cognitive Tests
12 standalone tools. Charts you can interact with, tasks that measure what lead does to the brain in real time.
Interactive Charts
01
Lead & Crime: Unified Animation
Overlapping canvas — gasoline lead timeline vs crime wave, age marker, demo bar.
02
100-Person Population Grid
ADHD / IQ loss / poverty mode slider across a grid of 100 people.
03
ADHD Odds by Blood Lead Quintile
Braun 2006 NHANES data. Each bar is a blood lead quintile, 4.1x at top.
04
IQ Bell Curve Slider
Drag blood lead level — watch the population bell curve shift left. Color goes green to red.
05
NHANES: Lead Decline vs IQ Recovery
Two lines crossing — blood lead falling, population IQ recovering. NHANES crossover.
06
Bone Lead Remobilization: Pregnancy
How stored gasoline-era lead releases from bone during pregnancy and lactation.
07
Lead & Type 2 Diabetes Dose-Response
Bars by blood lead quartile from NHANES. Risk climbs with each quartile.
08
NHANES Animated Timeline
Blood lead levels across decades — 3 stat cards, animated playback.
09
Calcium Blocks Lead: pH + Receptor
pH solubility bars and 3-line absorption curve — the two-mechanism calcium story.
10
Lead Absorption Mechanism Animation
Lead particle animation through stomach and intestine, TRPV6 competition.
Cognitive Tasks
11
Tower of London
5 problems of increasing depth. Measures planning latency and over-moves — two signatures of frontal lead damage.
12
Iowa Gambling Task
100 trials, 4 decks. Measures ability to shift to advantageous decks after trial and error — a lead-sensitive decision circuit.
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Digit Symbol Coding Test
90-second timed test. Processing speed — the cognitive domain most reliably reduced by lead exposure.