Journal of Nuclear Energy Science & Power Generation TechnologyISSN: 2325-9809

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Research Article, J Nucl Ene Sci Power Generat Technol Vol: 4 Issue: 2

Radiological Quality of Water in Areas with Old Uranium Mines in the District of Viseu, Portugal

Fernando P Carvalho*, João M Oliveira and Margarida Malta
Laboratory of Radiological Protection and Safety/IST (LPSR/STI), University of Lisbon, Bobadela LRS, Portugal
Corresponding author : Fernando P Carvalhoa
Laboratory of Radiological Protection and Safety/IST (LPSR/STI), University of Lisbon, National Road 10, km 139, 2695-066 Bobadela LRS, Portugal
Tel: +351219946332
E- mail: carvalho@itn.pt
Received: February 27, 2015 Accepted: August 03, 2015 Published: August 06, 2015
Citation: Carvalho FP, Oliveira JM, Malta M (2015) Radiological Quality of Water in Areas with Old Uranium Mines in the District of Viseu, Portugal. J Nucl Ene Sci Power Generat Technol 4:2. doi:10.4172/2325-9809.1000134

Abstract

Radionuclides were determined in streams and rivers receiving mine drainage in areas of old uranium mines at the centre of Portugal. Results showed enhanced radioactivity levels in some areas impacted by uranium mining and milling wastes, but lower than several years ago. Current treatment of mine drainage contributed to decrease radioactivity levels in streams. In some horticulture areas, such as at Cunha Baixa, water from irrigation wells was contaminated by acid mine drainage and is not suitable for human consumption and for irrigation. Villages and towns near those old uranium mines currently have tap water from public networks supplied from artificial lakes in major rivers of the region. This tap water showed compliance with the recommended limits of total alpha and total beta radioactivity and is suitable for human consumption.

Keywords: Uranium mines; Mining waste; Radioactivity; Water contamination; Drinking water

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