Radiobiological long-term accumulation of environmental alpha radioactivity in extracted human teeth and animal bones in Malaysia

In this study, the radiobiological analysis of natural alpha emitters in extracted human teeth and animal bones from Malaysia was estimated. The microdistributions of alpha particles in tooth and bone samples were measured using CR-39 alpha-particle track detectors. The lowest and highest alpha emis...

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Published in:Journal of environmental radioactivity 2014-03, Vol.129, p.140-147
Main Authors: Almayahi, B.A., Tajuddin, A.A., Jaafar, M.S.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Alpha Particles
Animals
Biological and medical sciences
Biological effects of radiation
Bone and Bones - chemistry
Bones
Cattle
Chickens
CR-39 detector
Female
Fishes
Fundamental and applied biological sciences. Psychology
Humans
Malaysia
Male
Mice
Middle Aged
Natural alpha radioactivity
Radiation Monitoring
Radioactivity
Radiocontamination
Smokers
Smoking
Teeth
Tissues, organs and organisms biophysics
Tooth - chemistry
Young Adult
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container_title Journal of environmental radioactivity
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creator Almayahi, B.A.
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description In this study, the radiobiological analysis of natural alpha emitters in extracted human teeth and animal bones from Malaysia was estimated. The microdistributions of alpha particles in tooth and bone samples were measured using CR-39 alpha-particle track detectors. The lowest and highest alpha emission rates in teeth in the Kedah and Perak states were 0.0080 ± 0.0005 mBq cm−2 and 0.061 ± 0.008 mBq cm−2, whereas those of bones in the Perlis and Kedah states were 0.0140 ± 0.0001 mBq cm−2 and 0.7700 ± 0.0282 mBq cm−2, respectively. The average alpha emission rate in male teeth was 0.0209 ± 0.0008 mBq cm−2, whereas that of female teeth was 0.0199 ± 0.0010 mBq cm−2. The alpha emission rate in teeth is higher in smokers (0.0228 ± 0.0008 mBq cm−2) than in non-smokers (0.0179 ± 0.0008 mBq cm−2). Such difference was found statistically significant (p 
doi_str_mv 10.1016/j.jenvrad.2014.01.001
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The microdistributions of alpha particles in tooth and bone samples were measured using CR-39 alpha-particle track detectors. The lowest and highest alpha emission rates in teeth in the Kedah and Perak states were 0.0080 ± 0.0005 mBq cm−2 and 0.061 ± 0.008 mBq cm−2, whereas those of bones in the Perlis and Kedah states were 0.0140 ± 0.0001 mBq cm−2 and 0.7700 ± 0.0282 mBq cm−2, respectively. The average alpha emission rate in male teeth was 0.0209 ± 0.0008 mBq cm−2, whereas that of female teeth was 0.0199 ± 0.0010 mBq cm−2. The alpha emission rate in teeth is higher in smokers (0.0228 ± 0.0008 mBq cm−2) than in non-smokers (0.0179 ± 0.0008 mBq cm−2). 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Psychology</topic><topic>Humans</topic><topic>Malaysia</topic><topic>Male</topic><topic>Mice</topic><topic>Middle Aged</topic><topic>Natural alpha radioactivity</topic><topic>Radiation Monitoring</topic><topic>Radioactivity</topic><topic>Radiocontamination</topic><topic>Smokers</topic><topic>Smoking</topic><topic>Teeth</topic><topic>Tissues, organs and organisms biophysics</topic><topic>Tooth - chemistry</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Almayahi, B.A.</creatorcontrib><creatorcontrib>Tajuddin, A.A.</creatorcontrib><creatorcontrib>Jaafar, M.S.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of environmental radioactivity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Almayahi, B.A.</au><au>Tajuddin, A.A.</au><au>Jaafar, M.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Radiobiological long-term accumulation of environmental alpha radioactivity in extracted human teeth and animal bones in Malaysia</atitle><jtitle>Journal of environmental radioactivity</jtitle><addtitle>J Environ Radioact</addtitle><date>2014-03-01</date><risdate>2014</risdate><volume>129</volume><spage>140</spage><epage>147</epage><pages>140-147</pages><issn>0265-931X</issn><eissn>1879-1700</eissn><coden>JERAEE</coden><abstract>In this study, the radiobiological analysis of natural alpha emitters in extracted human teeth and animal bones from Malaysia was estimated. The microdistributions of alpha particles in tooth and bone samples were measured using CR-39 alpha-particle track detectors. The lowest and highest alpha emission rates in teeth in the Kedah and Perak states were 0.0080 ± 0.0005 mBq cm−2 and 0.061 ± 0.008 mBq cm−2, whereas those of bones in the Perlis and Kedah states were 0.0140 ± 0.0001 mBq cm−2 and 0.7700 ± 0.0282 mBq cm−2, respectively. The average alpha emission rate in male teeth was 0.0209 ± 0.0008 mBq cm−2, whereas that of female teeth was 0.0199 ± 0.0010 mBq cm−2. The alpha emission rate in teeth is higher in smokers (0.0228 ± 0.0008 mBq cm−2) than in non-smokers (0.0179 ± 0.0008 mBq cm−2). Such difference was found statistically significant (p &lt; 0.01). •Alpha emission rates in teeth from smokers slightly higher than non-smokers.•Difference between alpha rates in male and female tooth not statistically significant.•Alpha particles have the same effect at any age.•Difference between alpha rates in bones was statistically significant.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>24462923</pmid><doi>10.1016/j.jenvrad.2014.01.001</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-7052-8060</orcidid></addata></record>
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ispartof Journal of environmental radioactivity, 2014-03, Vol.129, p.140-147
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subjects Adolescent
Adult
Aged
Alpha Particles
Animals
Biological and medical sciences
Biological effects of radiation
Bone and Bones - chemistry
Bones
Cattle
Chickens
CR-39 detector
Female
Fishes
Fundamental and applied biological sciences. Psychology
Humans
Malaysia
Male
Mice
Middle Aged
Natural alpha radioactivity
Radiation Monitoring
Radioactivity
Radiocontamination
Smokers
Smoking
Teeth
Tissues, organs and organisms biophysics
Tooth - chemistry
Young Adult
title Radiobiological long-term accumulation of environmental alpha radioactivity in extracted human teeth and animal bones in Malaysia
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