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Natural radionuclides in the aquatic environment of a phosphogypsum disposal area

Authors
Journal
Journal of Environmental Radioactivity
0265-931X
Publisher
Elsevier
Publication Date
Volume
53
Issue
2
Identifiers
DOI: 10.1016/s0265-931x(00)00121-1
Keywords
  • Phosphogypsum
  • Phosphates
  • Radioactivity
  • Radium
  • Polonium
  • Uranium
  • River
  • India

Abstract

Abstract Rock phosphate ore processing and disposal of phosphogypsum contribute to enhanced levels of natural radionuclides in the environment. Studies on the distribution of U-series nuclides were carried out in the Chitrapuzha River, near Cochin, in the southern part of India. The concentrations of radionuclides, especially 226 Ra , in the river waters showed enhancement by an order of magnitude relative to the levels in nearby water bodies. The concentrations were influenced by seasonal changes in the river flows during monsoon and summer periods. Ingestion doses via fish and milk have an upper estimate of 18 μSv for the critical population.

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