As of 2026-09-11 · the last 10 years
Radon’s research intensity has reached its all-time peak in 2026, marking the culmination of a steady climb over the last decade.
Research intensity ran from about 84% of the element's own all-time peak in 2016 to about 100% in 2026 — a steady climb, and the all-time peak (2026) falls inside this window. Over the same span its share of research attention across all elements rose. Among the 118 elements, radon has a mid-sized research literature.
The number of papers involving the element rose from about 4,751 in 2016 to about 8,092 in 2025 (1.7x). That is slower than the literature as a whole grew over the same years, so the element lost ground in the wider body of research even as its own count rose.
The dominant area of radon research is Indoor Radon Exposure, Natural Radioactivity and Lung Cancer Risk. This community focuses on radon levels, exhalation rates, and the assessment of radon in drinking water and effective dose. Radon is central to this community, with about 50% of its papers involving the element. It accounts for about 75% of radon’s recent research, a share that has remained steady over the window. A key paper in this field is "Epidemiology of lung cancer" (2021), cited over 880 times, which anchors the link between exposure and health outcomes.
A distinct and substantial portion of the literature belongs to Radon Transform Methods for Radar, Seismic, and Medical Imaging. Here, the term "radon" refers to a mathematical transform rather than the chemical element, yet the element is central to this community, appearing in about 64% of its papers. This community represents about 12.5% of radon’s recent research, holding steady from the previous period. The work involves conical radon and radon-fourier transforms for maneuvering target detection. A notable contribution is "The RADON TRANSFORM and LOCAL TOMOGRAPHY" (2020), cited over 300 times.
A smaller but specialized niche is Radon Background Mitigation in Underground Detectors. These papers address radon emanation, adsorption, and removal to reduce radioactive background noise in underground laboratories. Radon is a minor presence in this much larger community of dark matter and neutrino physics, appearing in only about 1% of its papers. However, it constitutes about 2% of radon’s recent research, a steady share. The "XENONnT dark matter experiment" (2024), cited about 74 times, highlights the critical need to manage radon background in high-sensitivity detectors.
Overall, the composition of radon research has remained stable, with the indoor exposure and lung cancer risk community continuing to hold the largest share, while the mathematical transform methods and underground detector mitigation communities maintain their consistent proportions.
For a deeper look at the current state of radon research, see the element’s Last 12 Months and Executive Brief reports.
What changed in the past year: new papers, shifting applications, emerging collaborators. See the momentum over a shorter window than the decade view.
Personal →See recent trends — Personal.
A by-topic status read of what changed and what's new — built for decision-makers, not search engines. Citation clusters, emerging applications, and the papers that matter most.
Professional →See the executive read — Professional.
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Showing Radon's three strongest connections. Personal opens the slider and the whole 118-element graph.