The short answer
The European Chemicals Agency (ECHA) is the European Union agency set up under the REACH chemical law. It is based in Helsinki, Finland, and handles the technical, scientific and administrative work of REACH.
ECHA is the European Chemicals Agency, based in Helsinki, Finland.
It was set up under REACH, the EU chemical law that took effect on 1 June 2007.
It does the technical, scientific and administrative work of REACH.
It also works to keep REACH consistent across EU countries.
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This page explains what the European Chemicals Agency is. It is for readers who see the name "ECHA" and want a short, plain answer.
The agency in brief
The European Chemicals Agency, or ECHA, is an agency of the European Union. It is based in Helsinki, Finland. REACH is the EU chemical law. It took effect on 1 June 2007. ECHA was set up under it.
ECHA's job is to do the technical, scientific and administrative work of REACH. It also works to keep the law the same across EU countries.
What this page does not cover
Earlier versions of this page gave more detail on EU rules, labels and the list of Substances of Very High Concern. That detail came from EU sources. Those sources are not ones this site uses for health claims. The detail was removed until it can be checked against an approved source.
To learn what causes cancer, see the National Cancer Institute page on cancer-causing substances in the environment and the IARC Monographs. Related pages: REACH, EU CLP classification, what a carcinogen is.
Sources
- Environmental Health Perspectives, EHPnet: European Chemicals Agency (via PubMed Central, NLM)
- National Cancer Institute: Cancer-Causing Substances in the Environment
- IARC Monographs: Agents Classified by the IARC Monographs
Common questions
What is ECHA?
The European Chemicals Agency, an EU agency set up under the REACH chemical law. It is based in Helsinki, Finland.
What does ECHA do?
It carries out the technical, scientific and administrative work of REACH and works to keep the law consistent across EU countries.
Does this page say which chemicals cause cancer?
No. For what causes cancer, see the NCI and IARC pages linked below.
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Last updated: 2026-10-02Next planned review: 2028-07-05
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How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and then compared with the sources listed on it, looking for statements those sources do not back up. That check is not a sentence-by-sentence record and can miss errors. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
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