Diggers dug up more than they intended (or at least, what they told us)

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Distribution of radium in oil and gas industry wastes from Malaysia

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M. Omar Corresponding Author Contact InformationE-mail The Corresponding Authora, H. M. Ali b, M. P. Abu a, K. M. Kontol a, Z. Ahmad a, S. H. S. S. Ahmad a, I. Sulaiman a and R. Hamzah a

a Malaysian Institute for Nuclear Technology Research (MINT), Bangi, 43000 Kajang, Selangor D.E., Malaysia

b Atomic Energy Licensing Board (AELB), Jalan Dengkil, 43800 Sepang, Selangor D.E., Malaysia

Received 12 May 2003;  
Revised 16 January 2004;  
accepted 16 January 2004.  
Available online 26 February 2004. 


Radium concentrations in 470 samples of the various types of waste from oil and gas industries were analysed using gamma spectrometers. The results showed that the radium concentration varied within a wide range. The highest mean 226Ra and 228Ra concentrations of 114,300 and 130,120 Bq/kg, respectively, were measured in scales. Overall, 75% of the waste, mostly sludge and extraction residue lies within the normal range of radium concentration in soils of Malaysia. However, some platform sludge can have radium concentration up to 560 Bq/kg.

Author Keywords: Author Keywords: Gas; Offshore; Oil; Radium; Scale; Sludge; Spectrometer; TENORM; Waste

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