Tools for organizations working on solutions.
All tools and resources are freely available for download and use. Attribution is welcomed but not required.
Food Lead BLL Calculator
Online tool
Enter the lead measured in foods and how much people eat. The tool estimates daily lead intake, the increase in blood lead level (BLL), each food’s share of that increase, and how each food’s Codex maximum level compares with a health-based benchmark.
Codex maximum levels may be set too high, which can give false reassurance. All BLL values are in µg/L.
Inputs
Population: Child, Adult or Custom
Slope (µg/L BLL per µg Pb/day): Child 1.6, Adult 0.4 (FDA defaults)
Benchmark for dietary BLL increase (µg/L): 5
Food table: food, g/day, lead (mg/kg)
Your inputs stay in your browser. Nothing is sent to GRIT.
Guidance tools for lead
| Resource | Type | Updated | Download |
|---|---|---|---|
| A Strategy for Lead A path to reduce blood lead levels at scale worldwide, with new ways to identify sources and the research needed. Proposed as a basis for investment in heavily affected countries. | 21 Oct 2026 | Download | |
| Easy AALM A Python wrapper of the EPA All Ages Lead Model, which estimates blood lead levels from food, soil and air. Installs easily on Mac and PC. | Software | GitHub | Download |
| Estimating Lead Burden for Various Sources How to evaluate a lead source in soil, food or elsewhere and estimate its contribution to lead poisoning in a country or community. Paper: Quantifying the Burden of Sources of Lead. | 28 Aug 2026 | Download | |
| Further Estimates of Lead Burden from Various Sources Summarises 16 assessments of lead burden from different sources, drawing on Total Diet Studies and peer-reviewed articles. | 15 Oct 2026 (revised) | Download | |
| Food Lead BLL Calculator (spreadsheet) Estimate how many foods together raise blood lead, using JECFA and FAO relationships. Look for food levels where the increase stays under 5 µg/L. Methods must measure lead down to 20 parts per billion. | Excel | 5 Oct 2026 | Download |
Easy AALM also links to the EPA user guide and the EPA AALM page.
Background papers
More background papers are coming.