Radioactivity levels in aerosol particles surrounding a large TENORM waste repository after application of preliminary restoration work

Abstract In this paper, 238U-series radionuclides have been analysed in particulate matter samples collected at a phosphogypsum stack system located near the city of Huelva (SW Spain) during the course of 1 year. The results have been compared to those collected at a reference (background) site located a few km away, in order to establish if Read more about Radioactivity levels in aerosol particles surrounding a large TENORM waste repository after application of preliminary restoration work[…]

Sequential extraction of 226Ra in sediments from an estuary affected historically by anthropogenic inputs of natural radionuclides

Abstract Riverbed sediments from an estuary historically affected by wastes discharged by several phosphate fertiliser plants and enriched in uranium-series radionuclides were operationally speciated using a Tessier-based method. In each selective fraction the 226Ra content was determined by alpha-particle spectrometry after radiochemical isolation and electrodeposition onto stainless steel planchets. These studies were performed in 226Ra-polluted Read more about Sequential extraction of 226Ra in sediments from an estuary affected historically by anthropogenic inputs of natural radionuclides[…]