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001-es BibID:	BIBFORM044682
Első szerző:	Papp Zoltán (fizikus)
Cím:	Significant radioactive contamination of soil around a coal-fired thermal power plant / Papp Z., Dezső Z., Daróczy S.
Dátum:	2002
ISSN:	0265-931X
Megjegyzések:	Soil samples were collected around a coal-fired power plant from 81 different locations.Brown coal, unusually rich in uranium, is burnt in this plant that lies inside the confines of asmall industrial town and has been operational since 1943. Activity concentrations of theradionuclides 238U, 226Ra, 232Th, 137Cs and 40K were determined in the samples. Considerablyelevated concentrations of 238U and 226Ra have been found in most samples collected withinthe inhabited area. Concentrations of 238U and 226Ra in soil decreased regularly withincreasing depthat many locations, whichcan be explained by fly-ashfallout. Concentrationsof 238U and 226Ra in the top (0?5 cm depth) layer of soil in public areas inside the town are 4.7times higher, on average, than those in the uncontaminated deeper layers, which means there isabout 108 Bq kg-1 surplus activity concentration above the geological background. A highemanation rate of 222Rn from the contaminated soil layers and significant disequilibriumbetween 238U and 226Ra activities in some kinds of samples have been found.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban radioactive contamination soil coal-fired power plant 238U 226Ra
Megjelenés:	Journal Of Environmental Radioactivity. - 59 : 2 (2002), p. 191-205. -
További szerzők:	Dezső Zoltán (1947-) (fizikus) Daróczy Sándor (fizikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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