Assessment of occupational radiation exposure in underground artisanal gold mines in Tongo, Upper East Region of Ghana
Assessments of radon and gamma radiation levels were carried out in underground artisanal gold mines in Tongo. This is one of the numerous artisanal gold mining communities in Ghana. Solid State Nuclear Track Detectors (SSNTDs) were used to estimate the mean 222Rn concentration and dose rates during...
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| Veröffentlicht in: | Journal of environmental radioactivity 2013-12, Vol.126, p.77-82 |
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| creator | Doyi, I. Oppon, O.C. Glover, E.T. Gbeddy, G. Kokroko, W. |
| description | Assessments of radon and gamma radiation levels were carried out in underground artisanal gold mines in Tongo. This is one of the numerous artisanal gold mining communities in Ghana. Solid State Nuclear Track Detectors (SSNTDs) were used to estimate the mean 222Rn concentration and dose rates during the Harmattan season (November 2010 to February 2011). The values for the 222Rn concentration at each monitoring site ranged from 14 ± 4 Bq m−3 to 270 ± 9 Bq m−3, with a mean value of 98 Bq m−3. These measurements are well below the lower action level of 500 Bq m−3 recommended by ICRP for workplaces. The activity concentrations of 40K, 232Th and 238U were determined using gamma-ray spectroscopy method. The effective dose estimates of 0.11 ± 0.02 mSv y−1 to 0.68 ± 0.04 mSv y−1 were below the allowable limit of 20 mSv per annum for occupational exposure control recommended by the ICRP. The total annual effective dose varied from 0.22 ± 0.04 mSv y−1 to 1.92 ± 0.08 mSv y−1.
•Mean radon concentration ranged from 14 ± 4 Bq m−3 to 270 ± 9 Bq m−3.•Annual effective dose of radionuclides from 0.11 ± 0.02 to 0.69 ± 0.04 mSv y−1.•238U, 232Th and 40K contributed 5–20%, 39–78% and 17–49% of effective dose.•Max total annual effective dose of 1.9 ± 0.08 mSv y−1 below 20 mSv y−1 set by ICRP 60. |
| doi_str_mv | 10.1016/j.jenvrad.2013.07.007 |
| format | Article |
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•Mean radon concentration ranged from 14 ± 4 Bq m−3 to 270 ± 9 Bq m−3.•Annual effective dose of radionuclides from 0.11 ± 0.02 to 0.69 ± 0.04 mSv y−1.•238U, 232Th and 40K contributed 5–20%, 39–78% and 17–49% of effective dose.•Max total annual effective dose of 1.9 ± 0.08 mSv y−1 below 20 mSv y−1 set by ICRP 60.</description><identifier>ISSN: 0265-931X</identifier><identifier>EISSN: 1879-1700</identifier><identifier>DOI: 10.1016/j.jenvrad.2013.07.007</identifier><identifier>PMID: 23968753</identifier><identifier>CODEN: JERAEE</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Artisanal gold mines ; Assessments ; Atmospheric pollution ; Biological and medical sciences ; Biological effects of radiation ; detectors ; Dosage ; Estimates ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; gamma radiation ; Gamma ray spectrometry ; Gamma rays ; Gold ; Humans ; Indoor pollution and occupational exposure ; Mines ; Mining ; monitoring ; Occupational exposure ; Occupational Exposure - analysis ; Pollution ; Potassium Radioisotopes - analysis ; Radiation Monitoring ; Radioactivity ; Radiocontamination ; Radon ; Radon - analysis ; Solid State Nuclear Track Detectors ; spectroscopy ; Thorium - analysis ; Tissues, organs and organisms biophysics ; traditional technology ; Underground ; Uranium - analysis ; working conditions</subject><ispartof>Journal of environmental radioactivity, 2013-12, Vol.126, p.77-82</ispartof><rights>2013 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2013 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c485t-ad28df6463d33ad8ac96e8d40389d03f9dfc8e69f9c2eb88fd51df28edc73d983</citedby><cites>FETCH-LOGICAL-c485t-ad28df6463d33ad8ac96e8d40389d03f9dfc8e69f9c2eb88fd51df28edc73d983</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jenvrad.2013.07.007$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28068039$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23968753$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Doyi, I.</creatorcontrib><creatorcontrib>Oppon, O.C.</creatorcontrib><creatorcontrib>Glover, E.T.</creatorcontrib><creatorcontrib>Gbeddy, G.</creatorcontrib><creatorcontrib>Kokroko, W.</creatorcontrib><title>Assessment of occupational radiation exposure in underground artisanal gold mines in Tongo, Upper East Region of Ghana</title><title>Journal of environmental radioactivity</title><addtitle>J Environ Radioact</addtitle><description>Assessments of radon and gamma radiation levels were carried out in underground artisanal gold mines in Tongo. This is one of the numerous artisanal gold mining communities in Ghana. Solid State Nuclear Track Detectors (SSNTDs) were used to estimate the mean 222Rn concentration and dose rates during the Harmattan season (November 2010 to February 2011). The values for the 222Rn concentration at each monitoring site ranged from 14 ± 4 Bq m−3 to 270 ± 9 Bq m−3, with a mean value of 98 Bq m−3. These measurements are well below the lower action level of 500 Bq m−3 recommended by ICRP for workplaces. The activity concentrations of 40K, 232Th and 238U were determined using gamma-ray spectroscopy method. The effective dose estimates of 0.11 ± 0.02 mSv y−1 to 0.68 ± 0.04 mSv y−1 were below the allowable limit of 20 mSv per annum for occupational exposure control recommended by the ICRP. The total annual effective dose varied from 0.22 ± 0.04 mSv y−1 to 1.92 ± 0.08 mSv y−1.
•Mean radon concentration ranged from 14 ± 4 Bq m−3 to 270 ± 9 Bq m−3.•Annual effective dose of radionuclides from 0.11 ± 0.02 to 0.69 ± 0.04 mSv y−1.•238U, 232Th and 40K contributed 5–20%, 39–78% and 17–49% of effective dose.•Max total annual effective dose of 1.9 ± 0.08 mSv y−1 below 20 mSv y−1 set by ICRP 60.</description><subject>Applied sciences</subject><subject>Artisanal gold mines</subject><subject>Assessments</subject><subject>Atmospheric pollution</subject><subject>Biological and medical sciences</subject><subject>Biological effects of radiation</subject><subject>detectors</subject><subject>Dosage</subject><subject>Estimates</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>gamma radiation</subject><subject>Gamma ray spectrometry</subject><subject>Gamma rays</subject><subject>Gold</subject><subject>Humans</subject><subject>Indoor pollution and occupational exposure</subject><subject>Mines</subject><subject>Mining</subject><subject>monitoring</subject><subject>Occupational exposure</subject><subject>Occupational Exposure - analysis</subject><subject>Pollution</subject><subject>Potassium Radioisotopes - analysis</subject><subject>Radiation Monitoring</subject><subject>Radioactivity</subject><subject>Radiocontamination</subject><subject>Radon</subject><subject>Radon - analysis</subject><subject>Solid State Nuclear Track Detectors</subject><subject>spectroscopy</subject><subject>Thorium - analysis</subject><subject>Tissues, organs and organisms biophysics</subject><subject>traditional technology</subject><subject>Underground</subject><subject>Uranium - analysis</subject><subject>working conditions</subject><issn>0265-931X</issn><issn>1879-1700</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0l1rFDEUBuBBFLut_gQ1N4IX7pqPyddVKaWtQkHQLngX0uRkzTI7GZOZRf-9GXfVy706ITznnMCbpnlF8IpgIj5sV1vo99n6FcWErbBcYSyfNAuipF4SifHTZoGp4EvNyLez5ryULcb1XtHnzRllWijJ2aLZX5UCpeygH1EKKDk3DXaMqbcdqsPjnzOCn0MqUwYUezT1HvImp1qRzWMsdrab1Hm0iz2U2TykfpPeo_UwQEY3tozoC2zmQXXF3ffa8KJ5FmxX4OWxXjTr25uH64_L-893n66v7peuVXxcWk-VD6IVzDNmvbJOC1C-xUxpj1nQPjgFQgftKDwqFTwnPlAF3knmtWIXzbvD3CGnHxOU0exicdB1toc0FUOk4rQVmtPTlBMhOVGCn6atkFhQKWSl_EBdTqVkCGbIcWfzL0OwmYM0W3MM0sxBGixNDbL2vT6umB534P91_U2ugrdHYIuzXci2d7H8dwoLhZmu7s3BBZuM3eRq1l_rJo7rd2ipEFVcHgTUIPYRsikuQu_AxwxuND7FE4_9DcloyTU</recordid><startdate>20131201</startdate><enddate>20131201</enddate><creator>Doyi, I.</creator><creator>Oppon, O.C.</creator><creator>Glover, E.T.</creator><creator>Gbeddy, G.</creator><creator>Kokroko, W.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7ST</scope><scope>7T2</scope><scope>7TV</scope><scope>7U2</scope><scope>C1K</scope><scope>SOI</scope><scope>7SU</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20131201</creationdate><title>Assessment of occupational radiation exposure in underground artisanal gold mines in Tongo, Upper East Region of Ghana</title><author>Doyi, I. ; Oppon, O.C. ; Glover, E.T. ; Gbeddy, G. ; Kokroko, W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c485t-ad28df6463d33ad8ac96e8d40389d03f9dfc8e69f9c2eb88fd51df28edc73d983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Applied sciences</topic><topic>Artisanal gold mines</topic><topic>Assessments</topic><topic>Atmospheric pollution</topic><topic>Biological and medical sciences</topic><topic>Biological effects of radiation</topic><topic>detectors</topic><topic>Dosage</topic><topic>Estimates</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>gamma radiation</topic><topic>Gamma ray spectrometry</topic><topic>Gamma rays</topic><topic>Gold</topic><topic>Humans</topic><topic>Indoor pollution and occupational exposure</topic><topic>Mines</topic><topic>Mining</topic><topic>monitoring</topic><topic>Occupational exposure</topic><topic>Occupational Exposure - analysis</topic><topic>Pollution</topic><topic>Potassium Radioisotopes - analysis</topic><topic>Radiation Monitoring</topic><topic>Radioactivity</topic><topic>Radiocontamination</topic><topic>Radon</topic><topic>Radon - analysis</topic><topic>Solid State Nuclear Track Detectors</topic><topic>spectroscopy</topic><topic>Thorium - analysis</topic><topic>Tissues, organs and organisms biophysics</topic><topic>traditional technology</topic><topic>Underground</topic><topic>Uranium - analysis</topic><topic>working conditions</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Doyi, I.</creatorcontrib><creatorcontrib>Oppon, O.C.</creatorcontrib><creatorcontrib>Glover, E.T.</creatorcontrib><creatorcontrib>Gbeddy, G.</creatorcontrib><creatorcontrib>Kokroko, W.</creatorcontrib><collection>AGRIS</collection><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><collection>Environment Abstracts</collection><collection>Health and Safety Science Abstracts (Full archive)</collection><collection>Pollution Abstracts</collection><collection>Safety Science and Risk</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of environmental radioactivity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Doyi, I.</au><au>Oppon, O.C.</au><au>Glover, E.T.</au><au>Gbeddy, G.</au><au>Kokroko, W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Assessment of occupational radiation exposure in underground artisanal gold mines in Tongo, Upper East Region of Ghana</atitle><jtitle>Journal of environmental radioactivity</jtitle><addtitle>J Environ Radioact</addtitle><date>2013-12-01</date><risdate>2013</risdate><volume>126</volume><spage>77</spage><epage>82</epage><pages>77-82</pages><issn>0265-931X</issn><eissn>1879-1700</eissn><coden>JERAEE</coden><abstract>Assessments of radon and gamma radiation levels were carried out in underground artisanal gold mines in Tongo. This is one of the numerous artisanal gold mining communities in Ghana. Solid State Nuclear Track Detectors (SSNTDs) were used to estimate the mean 222Rn concentration and dose rates during the Harmattan season (November 2010 to February 2011). The values for the 222Rn concentration at each monitoring site ranged from 14 ± 4 Bq m−3 to 270 ± 9 Bq m−3, with a mean value of 98 Bq m−3. These measurements are well below the lower action level of 500 Bq m−3 recommended by ICRP for workplaces. The activity concentrations of 40K, 232Th and 238U were determined using gamma-ray spectroscopy method. The effective dose estimates of 0.11 ± 0.02 mSv y−1 to 0.68 ± 0.04 mSv y−1 were below the allowable limit of 20 mSv per annum for occupational exposure control recommended by the ICRP. The total annual effective dose varied from 0.22 ± 0.04 mSv y−1 to 1.92 ± 0.08 mSv y−1.
•Mean radon concentration ranged from 14 ± 4 Bq m−3 to 270 ± 9 Bq m−3.•Annual effective dose of radionuclides from 0.11 ± 0.02 to 0.69 ± 0.04 mSv y−1.•238U, 232Th and 40K contributed 5–20%, 39–78% and 17–49% of effective dose.•Max total annual effective dose of 1.9 ± 0.08 mSv y−1 below 20 mSv y−1 set by ICRP 60.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>23968753</pmid><doi>10.1016/j.jenvrad.2013.07.007</doi><tpages>6</tpages></addata></record> |
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| subjects | Applied sciences Artisanal gold mines Assessments Atmospheric pollution Biological and medical sciences Biological effects of radiation detectors Dosage Estimates Exact sciences and technology Fundamental and applied biological sciences. Psychology gamma radiation Gamma ray spectrometry Gamma rays Gold Humans Indoor pollution and occupational exposure Mines Mining monitoring Occupational exposure Occupational Exposure - analysis Pollution Potassium Radioisotopes - analysis Radiation Monitoring Radioactivity Radiocontamination Radon Radon - analysis Solid State Nuclear Track Detectors spectroscopy Thorium - analysis Tissues, organs and organisms biophysics traditional technology Underground Uranium - analysis working conditions |
| title | Assessment of occupational radiation exposure in underground artisanal gold mines in Tongo, Upper East Region of Ghana |
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