With the pupose of estimation of the radiation level Gabbro executed by the Zhitomir’s regional epidemiologic station, by the departament of radiation hygiene it is set by the gamma-spektr’s method, that on maintenance of radium, thorium and potassium they behave to a first class (A ef<370) - for all types of building without limitations.

Name of matter                   and material	RA-226 Bk/kg	Th-232 Bk/kg	K-40     Bk/kg	A(ef) Bk/kg	Class of             application
Gabbro-labrodaryt of the Buky’s deposit of the Malin diskrict of the Zhytomir region	<7	<7	380	32.3	1(first)

     Exploitation of quarry does not require some measures on providing radiation safety.