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European Code Against Cancer, 5th edition - ultraviolet radiation, radon and cancer
David Ritchie1, Quentin Crowley2,3, Rüdiger Greinert4
1Environmental and Lifestyle Epidemiology Branch, International Agency for Research on Cancer, Lyon, France.
Molecular Oncology
|January 16, 2026
Summary
The European Code Against Cancer (ECAC) updated guidelines for reducing cancer risk. New recommendations focus on ultraviolet radiation (UVR) and indoor radon, offering actionable advice for individuals and policymakers to prevent skin and lung cancers.
Area of Science:
- Public Health
- Cancer Prevention
- Environmental Health
Background:
- The European Code Against Cancer (ECAC) offers evidence-based cancer prevention strategies.
- Ultraviolet radiation (UVR) and indoor radon are classified as Group 1 carcinogens by the International Agency for Research on Cancer (IARC).
- UVR exposure is a primary cause of skin cancer, while radon gas is a leading cause of lung cancer.
Purpose of the Study:
- To summarize evidence for updated recommendations on UVR and indoor radon exposures in the 5th edition of the European Code Against Cancer (ECAC5).
- To introduce complementary recommendations for policymakers to reduce cancer risk.
- To provide actionable, evidence-based guidance aligned with Europe's Beating Cancer Plan.
Main Methods:
- Review of scientific evidence supporting UVR and radon carcinogenicity and risk reduction.
- Analysis of existing ECAC recommendations and identification of areas for refinement.
- Development of specific recommendations for individuals and policymakers.
Main Results:
- ECAC5 retains and refines recommendations on UVR, advising individuals to avoid excessive sun exposure, use sun protection, and avoid sunbeds.
- ECAC5 includes updated recommendations for radon, encouraging individuals to check radon maps, measure levels, and take remedial action.
- New policy recommendations focus on harmonizing UVR protection, regulating indoor tanning, and supporting radon testing and mitigation.
Conclusions:
- Updated ECAC5 recommendations provide clear, evidence-based strategies for individuals and policymakers to mitigate risks from UVR and radon.
- These updated guidelines aim to reduce the incidence of skin and lung cancers across Europe.
- The recommendations support broader public health initiatives like Europe's Beating Cancer Plan.
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