Social Perception of Natural Background Radiation and Its Implications for Public Health Communication

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Abstract
Background: Public perception of environmental (natural background) radiation represents an important challenge for public health communication, as risk perception is often influenced more by information quality and institutional trust than by objective exposure levels. Methods: A cross-sectional survey was conducted among 481 respondents using a structured questionnaire assessing self-perceived knowledge, information sources, perceived radiation risk, institutional trust, and health-related attitudes. Results: Significant gender differences were observed in self-reported knowledge about radioactivity, with men more frequently reporting higher knowledge levels than women (p < 0.001), while no significant differences emerged between urban and rural respondents; logistic regression analysis showed that lower perceived risk was associated with lack of medical information (OR = 0.32, 95% CI: 0.14–0.71) and absence of avoidance behavior (OR = 0.23, 95% CI: 0.11–0.47), whereas low trust in medical institutions was associated with higher odds of perceiving natural background radiation as dangerous (OR = 1.84, 95% CI: 1.21–2.80). Conclusions: Effective radiation risk communication requires more than the dissemination of information; it must also address public concerns, enhance institutional trust, and provide clear, credible, and accessible health-related messages. Tailored communication strategies are essential to bridge the gap between expert knowledge and public perception.
Funding Information
  • George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș (5236/13.05.2025)

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