# Lead exposure reduction

**Intervention ID:** `int_lead_reduction`  
**Evidence strength:** moderate  
**Causes:** `cause_lead_pollution`, `cause_global_health_wellbeing`

## Mechanism

Reduce lead in products/environments via policy and market work.

## Organizations in this catalog

- `org_happier_lives_fund`
- `org_pure_earth`

## Citations (public evaluator pages)

- https://www.happierlivesinstitute.org/pure-earth-summary/
- https://www.happierlivesinstitute.org/charities/

## Evidence notes

HLI Promising Charity; analysis rests on correlational lead–wellbeing studies, exposure modelling, and track-record-based success prediction (HLI charities page / Pure Earth summary).

## Key uncertainties

- Higher uncertainty than Top Charities; medium depth (~200 hours / ~60% of useful research) (HLI charities page).
- Advocacy success probability uncertain; outcome may be success, failure, or in-between (HLI Pure Earth report framing).
- HLI notes CE estimates often fall under further scrutiny for Promising Charities (HLI charities page).

## Fungibility notes

HLI funding for Pure Earth via Happier Lives Fund is restricted to the Ghana cosmetics programme (HLI HLF disbursement posts).

## Cost-effectiveness notes (do not treat as verified without citation_urls)

HLI Pure Earth ~105.43 WELLBYs/$1000; ~$9.49/WELLBY (higher uncertainty).

Agents must look up `data/claims_index.json` and cite `citation_urls` before stating numbers.

## Provenance

See `docs/evaluation-provenance.md` and `data/graph/evaluations_graph.json`.

_last_reviewed: 2026-10-01_