The National Cancer Database is a clinical oncology database built from hospital registry data at Commission on Cancer-accredited facilities.
Toxicology Excellence for Risk Assessment
ITER is a database of human health risk values and cancer classifications for chemicals, with comparisons and supporting data sources.

About Toxicology Excellence for Risk Assessment
ITER (International Toxicity Estimates for Risk Assessment) is an internet database of human health risk values and cancer classifications for over 680 chemicals of environmental concern. It collects data from multiple organizations worldwide and presents it in a table so the values can be compared side by side. Each chemical entry includes a synopsis explaining differences in the data and a link to the organization that produced each value.
ITER has a companion database, the Risk Information Exchange (RiskIE), which lists over 4,000 in-progress or recently completed risk assessment projects. According to the site, these projects come from 35 organizations in 13 countries and include both chemical-specific and non-chemical-specific work. The homepage states that ITER is currently available at projectiter.org, which provides additional search functions. The homepage also notes that edits to ITER are made as soon as possible, but it does not give a publication schedule or a date for the data.
Key features
- Tabular comparison of human health risk values for over 680 chemicals
- Cancer classifications listed alongside health risk values
- Synopsis explaining differences between data from different organizations
- Links from each entry to the organization that produced the data
- Companion RiskIE database of over 4,000 risk assessment projects
- Additional search functions at projectiter.org, according to the homepage
- Places risk values from different organizations in one table for comparison
- Links each value to its source organization for further information
- Includes a synopsis that explains differences between sources
- Covers over 680 chemicals of environmental concern, not all chemicals
- Additional search functions are located at projectiter.org rather than on this homepage
Toxicology Excellence for Risk Assessment at a glance
- Website
- tera.org/iter
- Category
- Research & Data › Health & Medical Data
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- Chinese
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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