Laun dry de ter gents are chem i cals widely used in ev ery day life, and in nu mer ous in dus try branches. In or der to per ceive the ra dio log i cal as pect of en vi ron men tal pol lu tion by wastewater, the anal y sis of laun dry de ter gents avail able on the Ser bian mar ket was un dertaken. Laun dry de ter gent sam ples were mea sured by means of gamma spec trom e try and the re sults are pre sented in this pa per. Anal y sis of the ob tained ac tiv ity con cen tra tions showed that

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... n dry de ter gents in Ser bia mostly ful fill the in ter na tional rec om men da tion and require ments re gard ing the phos phate con tent. Be sides that, the con tent of the de tected radionuclides in laun dry de ter gent sam ples in di cates the mi nor ra dio log i cal risk to the en viron ment via wastewaters. Key words: laun dry de ter gent, gamma spec trom e try, ex ter nal ra di a tion haz ard in dex, ra dium equiv a lent ac tiv ity