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Particle-Size Control of Radionuclide Enrichment and Environmental Risk Pathways in Slurry from the Wandan Mud
Chih-Chung Lin1, Yu-Sheng Wang1, Wei-Hsiang Huang2
1Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung County, Nei Pu, 91201, Taiwan.
Environmental Pollution (Barking, Essex : 1987)
|August 3, 2026
Summary
Fine particles from mud volcanoes are highly mobile and carry significant natural radionuclide risks. Understanding particle size is crucial for assessing environmental hazards and managing land in these regions.
Area of Science:
- Environmental Science
- Geochemistry
- Radiological Science
Background:
- Mud volcanism releases deep geological materials and radionuclides, posing environmental risks.
- Particle-size effects on radionuclide mobility and exposure from mud volcanoes are poorly understood.
Purpose of the Study:
- Investigate physicochemical and radiological properties of Wandan mud volcano slurry.
- Determine the role of particle size in radionuclide transport and risk assessment.
Main Methods:
- Integrated physicochemical and radiological analysis of mud slurry samples.
- Particle-size distribution analysis.
- Measurement of natural radionuclide activities (40K, 232Th, 226Ra).
Main Results:
- Slurry is dominated by fine particles (<0.061 mm), prone to transport.
- High alkalinity and electrical conductivity indicate a hostile environment.
- Finer particles exhibit significantly higher radionuclide activity due to surface adsorption.
Conclusions:
- Fine particles are the primary vectors for radionuclide dispersion and radiological risk from mud volcanoes.
- Particle-size-resolved analysis is essential for accurate environmental risk assessment.
- Improved land management strategies are needed for mud-volcanic regions.
