Article

ENVIRONMENTAL IMPACT OF NATURAL RADIONUCLIDES FROM A COAL-FIRED POWER PLANT IN SPAIN.

LIBRA Laboratory, University of Valladolid, Valladolid 47011 Spain.
Radiation Protection Dosimetry (impact factor: 0.82). 07/2012; DOI:10.1093/rpd/ncs126
Source: PubMed

ABSTRACT This paper is a study of the radiological impact of a coal-fired power plant in Spain. Activity concentrations of six natural radionuclides were determined in coal, ash, mine wastes and sediments by gamma-ray spectrometry. The average activity concentrations of (238)U, (226)Ra,(224) Ra, (210)Pb, (232)Th and (40)K in coal were 24, 30, 28, 41, 23 and 242 Bq kg(-1) and in ash were 103, 128, 101, 124, 88 and 860 Bq kg(-1), respectively. The enrichment factor, radium equivalent activity and alpha index in the ash sample have been estimated. For the five waste pile samples, the absorbed dose rate was higher than the world average dose rate (60 nGy h(-1)). The dependence of radionuclide concentration on the grain size of nine sediments was also studied. The analysis of the radionuclides in waste and sediment samples will demonstrate the distribution and mobility of these elements through the environment, where a potential risk of contamination can be detected.

0 0
 · 
0 Bookmarks
 · 
44 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

absorbed dose rate
 
Activity concentrations
 
alpha index
 
ash sample
 
average activity concentrations
 
coal-fired power plant
 
contamination
 
elements
 
enrichment factor
 
five waste
 
grain size
 
natural radionuclides
 
radiological impact
 
radionuclide concentration
 
radionuclides
 
sediment samples
 
sediments
 
world average dose rate