Application and development of methods for the radon and thoron determination in the soil and air to assess radon potential

Abstract

<p>U okviru ove&nbsp; disertacije razvijena je i&nbsp; verifikovana metoda&nbsp; za&nbsp; direktno&nbsp; merenje&nbsp; koncentracije&nbsp; toronovih&nbsp; potomaka&nbsp; u vazduhu&nbsp; i&nbsp; određivanje&nbsp; toronske&nbsp; ravnoteže.&nbsp; Pouzdanost&nbsp; i primenljivost&nbsp; predloženog&nbsp; GAMA&nbsp; metoda&nbsp; proverena&nbsp; je sveobuhvatnom&nbsp; studijom&nbsp; koncentracija&nbsp; radona,&nbsp; torona&nbsp; i svih parametara koji doprinose ovim koncentracijama na 16 različitih&nbsp; lokacija&nbsp; na&nbsp; području&nbsp; Srbije&nbsp; odabranih&nbsp; na&nbsp; osnovu<br />geomorfologije&nbsp; terena&nbsp; i&nbsp; prethodnih&nbsp; merenja.&nbsp; Iznalaženjem najznačajnijih&nbsp; statističkih&nbsp; korelacija&nbsp; i&nbsp; primenom&nbsp; jedne&nbsp; od predloženih&nbsp; metoda&nbsp; iz&nbsp; kori&scaron;ćene&nbsp; naučne&nbsp; literature&nbsp; za procenu&nbsp; geogenog&nbsp; radonskog&nbsp; potencijala&nbsp; identifikovani&nbsp; su prediktori&nbsp; koji&nbsp; utiču&nbsp; na&nbsp; koncentraciju&nbsp; radona&nbsp; u&nbsp; zemlji&scaron;tu i vazduhu zatvorenih prostorija. Pored toga studijom slučaja u&nbsp; jednoj&nbsp; porodičnoj&nbsp; kući&nbsp; potvrđena&nbsp; je&nbsp; primenljivost&nbsp; i podobnost&nbsp; aktivnih&nbsp; monitora&nbsp; za&nbsp; određivanje&nbsp; radonske&nbsp; i toronske&nbsp; ravnoteže,&nbsp; praćenje&nbsp; varijacija,&nbsp; kao&nbsp; i&nbsp; neophodnost njihove&nbsp; primene&nbsp; u&nbsp; procesu&nbsp; remedijacije&nbsp; objekata&nbsp; sa<br />povi&scaron;enom koncentracijom radona.</p>

<p>Within&nbsp; this&nbsp; dissertation,&nbsp; a&nbsp; method&nbsp; for&nbsp; the&nbsp; direct measurement of indoor thoron progeny concentrations and&nbsp; determination&nbsp; of&nbsp; the&nbsp; thoron&nbsp; equilibrium&nbsp; was developed&nbsp; and&nbsp; verified.&nbsp; The&nbsp; reliability&nbsp; and applicability&nbsp; of&nbsp; the&nbsp; proposed&nbsp; GAMA&nbsp; method&nbsp; was proved by a comprehensive study of radon, thoron and all parameters that contribute to these concentrations at 16 different locations in the territory of Serbia selected based&nbsp; on&nbsp; geomorphology&nbsp; of&nbsp; the&nbsp; terrain&nbsp; and&nbsp; previous measurements. Based on the most significant statistical correlations&nbsp; between&nbsp; all&nbsp; examined&nbsp; parameters&nbsp; and using one of the proposed methods from the literature<br />geogenic&nbsp; radon&nbsp; potential&nbsp; was&nbsp; estimated&nbsp; with identification&nbsp; of&nbsp; the&nbsp; predictors&nbsp; which&nbsp; significantly affect radon concentrations in air and soil. In addition, a&nbsp; case&nbsp; study&nbsp; in&nbsp; one&nbsp; family&nbsp; house&nbsp; confirmed&nbsp; the suitability&nbsp; of&nbsp; active&nbsp; radon&nbsp; monitors&nbsp; for&nbsp; determination of&nbsp; the&nbsp; radon&nbsp; and&nbsp; thoron&nbsp; equilibrium,&nbsp; monitoring&nbsp; of time&nbsp; variations&nbsp; and&nbsp; also&nbsp; the&nbsp; necessity&nbsp; of&nbsp; their application in the remediation of objects with elevated radon.</p>