ORIGINAL RESEARCH article
Front. Public Health
Sec. Environmental Health and Exposome
Volume 13 - 2025 | doi: 10.3389/fpubh.2025.1595130
The Relationship Between Geochemical Background Values of MgO and SiO₂ and Regional Population Longevity: Evidence from Yunnan, China
Provisionally accepted
- College of Tourism and Geography, Yunnan Normal University, Kunming, China
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The relationship between geographical environments and human health has been a long-standing focus of scientific inquiry. Magnesium (Mg) and silicon (Si), as essential elements for the human body, play vital roles in individual health and may influence longevity. However, the extent to which the statistical characteristics of population longevity are associated with geochemical background values at a regional scale remains an important question. This study examines Yunnan, China, a region with diverse and complex geographical conditions, to analyze the Spatial Distribution Characteristics of magnesium oxide (MgO) and silicon dioxide (SiO₂) background values. It further investigates the individual and synergistic relationships between these geochemical factors and population longevity at the county scale in Yunnan. The results demonstrate that the MgO background value (ω(MgO)) exhibits a significant positive correlation with the Ultraoctogenarian Index and has a positive synergistic effect on regional longevity levels. In contrast, the SiO₂ background value (ω(SiO₂)) shows a significant negative correlation with both the longevity index and the Ultra-octogenarian Index, while the ratio of Si to Mg (ω(Si/Mg)) is also significantly negatively correlated with the Ultra-octogenarian Index. These findings suggest that MgO-enriched natural environments may positively contribute to regional population longevity, while excessively high SiO₂ background values may have a detrimental effect. This study offers a novel perspective on the relationship between regional longevity levels and natural geographical environments, which may inform the selection and sustainable development of longevity-oriented tourism destinations.
Keywords: SiO2, Population Longevity Level, Correlation analysis, MgO, geochemical background value
Received: 19 Mar 2025; Accepted: 16 Jun 2025.
Copyright: © 2025 Zhou, Wang, Zhu and Lai. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Jiaxue Wang, College of Tourism and Geography, Yunnan Normal University, Kunming, China
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