Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa

Seven brands of cigarettes sold in Malaysia were selected from a market in Shah Alam to study Po-210 concentration and dose equivalent to smoker. Effect of Po-210 to lung cancer is an important problem in many countries with very high cigarette consumption. The objective of this thesis is to determi...

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Main Author:	Mustaffa, Noor Fazila
Format:	Student Project
Language:	English
Published:	Faculty of Applied Sciences 2008
Subjects:	Radioactivity and radioactive substances
Online Access:	http://ir.uitm.edu.my/id/eprint/22935/ http://ir.uitm.edu.my/id/eprint/22935/1/PPb_NOOR%20FAZILA%20MUSTAFFA%20AS%2008_5.pdf

id	uitm-22935
recordtype	eprints
spelling	uitm-229352019-03-06T09:16:02Z http://ir.uitm.edu.my/id/eprint/22935/ Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa Mustaffa, Noor Fazila Radioactivity and radioactive substances Seven brands of cigarettes sold in Malaysia were selected from a market in Shah Alam to study Po-210 concentration and dose equivalent to smoker. Effect of Po-210 to lung cancer is an important problem in many countries with very high cigarette consumption. The objective of this thesis is to determine the activity Po-210 in each cigarettes brand, to estimate annual dose inhalation and annual committed effective dose via smoking, and compared with recommended value. In this study, Po-210 was determined by alpha spectrometry using a silicon surface barrier detector after radiochemical procedure and spontaneous deposition of polonium on a silver disk. The polonium content in cigarette smoke was estimated based on its activity in fresh tobaccos, ash, filters before and after smoking and wrapping paper. The annual committed effective doses were calculated basis on 50% of the total smoke is inhaled. The results indicated that Po-210 content in each cigarette brand was from 6.84-13.38 mBq/cigarette and the results of this study are in the range of values measured elsewhere in the world (2.64 to 24.88 mBq/cigarette). Besides, Malaysian smokers who smoke one pack (20 cigarettes) per day, inhaled from 25.05 to 32.85 Bq/year of Po-210. The mean value of the annual committed effective dose for smokers was estimated to be 85.16 µSv. A person who smokes two packs of cigarettes, the annual committed effective dose was 170.32 µSv yr-1 and about 7 times higher than for non-smokers living in the mid-latitudes of the northern hemisphere. Faculty of Applied Sciences 2008 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/22935/1/PPb_NOOR%20FAZILA%20MUSTAFFA%20AS%2008_5.pdf Mustaffa, Noor Fazila (2008) Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa. [Student Project] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Radioactivity and radioactive substances
spellingShingle	Radioactivity and radioactive substances Mustaffa, Noor Fazila Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa
description	Seven brands of cigarettes sold in Malaysia were selected from a market in Shah Alam to study Po-210 concentration and dose equivalent to smoker. Effect of Po-210 to lung cancer is an important problem in many countries with very high cigarette consumption. The objective of this thesis is to determine the activity Po-210 in each cigarettes brand, to estimate annual dose inhalation and annual committed effective dose via smoking, and compared with recommended value. In this study, Po-210 was determined by alpha spectrometry using a silicon surface barrier detector after radiochemical procedure and spontaneous deposition of polonium on a silver disk. The polonium content in cigarette smoke was estimated based on its activity in fresh tobaccos, ash, filters before and after smoking and wrapping paper. The annual committed effective doses were calculated basis on 50% of the total smoke is inhaled. The results indicated that Po-210 content in each cigarette brand was from 6.84-13.38 mBq/cigarette and the results of this study are in the range of values measured elsewhere in the world (2.64 to 24.88 mBq/cigarette). Besides, Malaysian smokers who smoke one pack (20 cigarettes) per day, inhaled from 25.05 to 32.85 Bq/year of Po-210. The mean value of the annual committed effective dose for smokers was estimated to be 85.16 µSv. A person who smokes two packs of cigarettes, the annual committed effective dose was 170.32 µSv yr-1 and about 7 times higher than for non-smokers living in the mid-latitudes of the northern hemisphere.
format	Student Project
author	Mustaffa, Noor Fazila
author_facet	Mustaffa, Noor Fazila
author_sort	Mustaffa, Noor Fazila
title	Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa
title_short	Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa
title_full	Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa
title_fullStr	Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa
title_full_unstemmed	Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa
title_sort	determination of polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / noor fazila mustaffa
publisher	Faculty of Applied Sciences
publishDate	2008
url	http://ir.uitm.edu.my/id/eprint/22935/ http://ir.uitm.edu.my/id/eprint/22935/1/PPb_NOOR%20FAZILA%20MUSTAFFA%20AS%2008_5.pdf
first_indexed	2023-09-18T23:09:44Z
last_indexed	2023-09-18T23:09:44Z
_version_	1777418721495613440

Determination of Polonium 210 in cigarettes using radiochemical separation and alpha spectroscopy / Noor Fazila Mustaffa

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