Transparency on YouTube for radon risk communication

Introduction: Scientific evidence has proven the link between exposure to radon in indoor environments and lung cancer. For this reason, radon gas is considered a threat to public health. Additionally, YouTube has also been confirmed as a source of medical information. Methodology: This research examines YouTube as a vehicle for the global dissemination of information about radon. All the channels available on the platform since its creation that contain videos on this gas are identified, along with the geographical areas in which they operate, the language they use to broadcast, the number of subscribers they have, and the number of views they amass. Using a sample of channels specifically focused on radon, the presence of this topic on YouTube is examined using a mixed methodological model (quantitative and qualitative) that explores themes, narratives and dissemination strategies. Results: The results reveal the absence of echo chambers and the lack of awareness on this social network regarding the public health issues surrounding radon gas. Discussion and Conclusions: The study highlights the limited presence of radon -related videos on YouTube, with a predominance of content in English, restricting accessibility in non -English-speaking regions. Radon channels underutilize YouTube features and lack community engagement, revealing a significant gap in recognizing radon as a public health issue on the platform. Successful channels demonstrate good practices, but overall awareness remains insufficient.