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Natural radionuclides from coal fired thermal power plants – estimation of atmospheric release and inhalation risk

Published online by Cambridge University Press:  09 January 2012

J. Barescut ,
D. Lariviere ,
T. Stocki ,
G.G. Pandit ,
S.K. Sahu  and
V.D. Puranik
G.G. Pandit*
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
S.K. Sahu
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
V.D. Puranik
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
*
e-mail: [email protected]
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Abstract

Coal, bottom ash and fly ash samples were collected from three different coal-fired thermal power plants in India and subjected to gamma spectrometry analysis for natural radioactivity contents. The results of present study show that fly ash and bottom ash contains two to five times more natural radionuclides than feed coal. None of the fly-ash and bottom ash samples had radium equivalent activities and external hazard index values more than 370 Bq kg–1 and unity respectively. However the absorbed dose rate at 1 m above the ash pond was 79.19n Gy h–1 (average of 3 plants) higher than the global average value of 55 nGy h–1. The corresponding annual external effective dose is estimated to be 0.68 mSv y–1, which is also more than that (0.46 mSv y–1) in areas of natural background radiation. The 5th percentile, 95th percentile and mean values for total inhalation risk arising from radionuclides (Ra226, Th228, Pb210 and Nat-U) were found to be 3.83 × 10−9, 6.50 × 10−8 and 2.08 × 10−8 respectively.

Type
Research Article
Information
Radioprotection , Volume 46 , Issue 6: ICRER 2011 – International Conference on Radioecology & Environmental Radioactivity: Environment & Nuclear Renaissance , 2011 , pp. S173 - S179
Copyright
© Owned by the authors, published by EDP Sciences, 2011

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References

Beretka, J. and Mathew, P. J. (1985), Natural radioactivity of Australian building materials, industrial wastes and by-products. HealthPhys.48, 87–95.
Mathur R., Chand S., Tezuka T. (2003), Optimal use of coal for the power generation in India, Energy Policy, 31(3):319–31
Papastefanou, C. (1996) Radiological impact from atmospheric releases of 226Ra from coal-fired power plants. J. Environmental Radioactivity, 32, 105-114.
Rajamane N.P. (2003), Making concrete ‘green’ through use of fly ash. Green Business Opportun,, 9(4):23
Sarkar A., Rano R., Mishra K.K, Sinha I.N. (2005), Particle size distribution profile of some Indian fly ash- A comparative study to assess their possible uses; Fuel Process Technol, 86(11):1221–38
Senior C.L., Helble J.J., Sarofim A.F. (2000) Emissions of mercury, trace elements, and fine particles from stationary combustion sources. Fuel Processing Technology, 65–66: 263–288
Swaine D.J. (2000) Why trace elements are important. Fuel Processing Technology, 65–66: 21–33
UNSCEAR (1982) Ionizing radiation: sources and biological effects. United Nation Scientific Committee on the Effects of Atomic Radiation, United Nations, New York.
UNSCEAR (1988), Sources, effects and risk of ionizing radiation. United Nations, New York
UNSCEAR (1993), Exposure from natural sources of radiation, United Nations, New York
UNSCEAR (2000), Sources and effects of ionizing radiation. United Nations Scientific Committee on the Effects of Atomic Radiation, United Nations, New York
Yang, Y. (2005), Radioactivity concentrations in soils of the Xiazhuang granite area, China. Appl. Radiat. Isot., 63, 255–259.