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Updated: Jul 15, 2026

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability
Published on: June 21, 2015
Natural radionuclides in the aquatic environment of a phosphogypsum disposal area
P P Haridasan1, A C Paul, M V Desai
1Environmental Assessment Division, Bhabha Atomic Research Centre, Health Physics Unit, Indian Rare Earths Ltd., Udyogamandal, Kerala, India-683 501.
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 226Ra, 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 microSv for the critical population.
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