Assessment of artisan's exposure to heavy metals from tantalite ore mining sites in Oke-Ogun, Oyo State, Nigeria
Mining activities cause disequilibrium in the bound states of heavy metals in rocks, soils and mineral ore. These heavy and toxic metals find their ways into the food chain thereby posing health risks along the chain. Furthermore, the work scenarios in mining activities have exposure pathways such a...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2018-01-01
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| Series: | Radiation Protection and Environment |
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| Online Access: | http://www.rpe.org.in/article.asp?issn=0972-0464;year=2018;volume=41;issue=4;spage=181;epage=188;aulast=Ekundayo |
| _version_ | 1811308904855896064 |
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| author | Ajetunmobi Abayomi Ekundayo Amidu Olalekan Mustapha Itunu Comfort Okeyode Gbadebo Adewole Michael Al-Azmi Darwish |
| author_facet | Ajetunmobi Abayomi Ekundayo Amidu Olalekan Mustapha Itunu Comfort Okeyode Gbadebo Adewole Michael Al-Azmi Darwish |
| author_sort | Ajetunmobi Abayomi Ekundayo |
| collection | DOAJ |
| description | Mining activities cause disequilibrium in the bound states of heavy metals in rocks, soils and mineral ore. These heavy and toxic metals find their ways into the food chain thereby posing health risks along the chain. Furthermore, the work scenarios in mining activities have exposure pathways such as inadvertent ingestion and inhalation of dust and materials from the sites . The dose levels due to heavy metals in tantalite samples from Oke-Ogun, Oyo State have been estimated. Twelve samples of tantalite ore [(Fe, Mn) Ta2O6], were obtained from the mining sites. 500mg of the pulverized samples were pelletized for their elemental analysis using proton Induced X-ray Emission technique. Hazard indices due to exposure to carcinogenic elements in Tantalite were estimated based on United State Environmental Protection Agency (USEPA) dose model. Chromium, Lead and Arsenic are the only carcinogenic elements found in the samples and average concentrations 311.05, 2533.26 and 127.35 ppm respectively and are higher than permissible limit recommended by Abundance elements in average crustal rock (AEACR) (100, 10.1 and 2-0 ppm respectively). The summation of hazard indices values estimated for carcinogenic elements are greater than unity. The estimated Life time average daily dose for the carcinogenic elements is 6.86E-06 mg/kg. The cancer risk estimated for the carcinogenic elements in Komu and Eluku is of the order Cr (1.32E-05) > Pb (5.83E-08). The total risk for these elements is 1.32E-05 and this value is within the permissible limit range of 10-4 - 10-6 recommended by USEPA, 1998. |
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| format | Article |
| id | doaj.art-dfff420ea94c4149b4c95d97ab5b93e6 |
| institution | Directory Open Access Journal |
| issn | 0972-0464 |
| language | English |
| last_indexed | 2024-04-13T09:31:36Z |
| publishDate | 2018-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Radiation Protection and Environment |
| spelling | doaj.art-dfff420ea94c4149b4c95d97ab5b93e62022-12-22T02:52:13ZengWolters Kluwer Medknow PublicationsRadiation Protection and Environment0972-04642018-01-0141418118810.4103/rpe.RPE_57_18Assessment of artisan's exposure to heavy metals from tantalite ore mining sites in Oke-Ogun, Oyo State, NigeriaAjetunmobi Abayomi EkundayoAmidu Olalekan MustaphaItunu Comfort OkeyodeGbadebo Adewole MichaelAl-Azmi DarwishMining activities cause disequilibrium in the bound states of heavy metals in rocks, soils and mineral ore. These heavy and toxic metals find their ways into the food chain thereby posing health risks along the chain. Furthermore, the work scenarios in mining activities have exposure pathways such as inadvertent ingestion and inhalation of dust and materials from the sites . The dose levels due to heavy metals in tantalite samples from Oke-Ogun, Oyo State have been estimated. Twelve samples of tantalite ore [(Fe, Mn) Ta2O6], were obtained from the mining sites. 500mg of the pulverized samples were pelletized for their elemental analysis using proton Induced X-ray Emission technique. Hazard indices due to exposure to carcinogenic elements in Tantalite were estimated based on United State Environmental Protection Agency (USEPA) dose model. Chromium, Lead and Arsenic are the only carcinogenic elements found in the samples and average concentrations 311.05, 2533.26 and 127.35 ppm respectively and are higher than permissible limit recommended by Abundance elements in average crustal rock (AEACR) (100, 10.1 and 2-0 ppm respectively). The summation of hazard indices values estimated for carcinogenic elements are greater than unity. The estimated Life time average daily dose for the carcinogenic elements is 6.86E-06 mg/kg. The cancer risk estimated for the carcinogenic elements in Komu and Eluku is of the order Cr (1.32E-05) > Pb (5.83E-08). The total risk for these elements is 1.32E-05 and this value is within the permissible limit range of 10-4 - 10-6 recommended by USEPA, 1998.http://www.rpe.org.in/article.asp?issn=0972-0464;year=2018;volume=41;issue=4;spage=181;epage=188;aulast=EkundayoArtisanexposureheavy metals |
| spellingShingle | Ajetunmobi Abayomi Ekundayo Amidu Olalekan Mustapha Itunu Comfort Okeyode Gbadebo Adewole Michael Al-Azmi Darwish Assessment of artisan's exposure to heavy metals from tantalite ore mining sites in Oke-Ogun, Oyo State, Nigeria Radiation Protection and Environment Artisan exposure heavy metals |
| title | Assessment of artisan's exposure to heavy metals from tantalite ore mining sites in Oke-Ogun, Oyo State, Nigeria |
| title_full | Assessment of artisan's exposure to heavy metals from tantalite ore mining sites in Oke-Ogun, Oyo State, Nigeria |
| title_fullStr | Assessment of artisan's exposure to heavy metals from tantalite ore mining sites in Oke-Ogun, Oyo State, Nigeria |
| title_full_unstemmed | Assessment of artisan's exposure to heavy metals from tantalite ore mining sites in Oke-Ogun, Oyo State, Nigeria |
| title_short | Assessment of artisan's exposure to heavy metals from tantalite ore mining sites in Oke-Ogun, Oyo State, Nigeria |
| title_sort | assessment of artisan s exposure to heavy metals from tantalite ore mining sites in oke ogun oyo state nigeria |
| topic | Artisan exposure heavy metals |
| url | http://www.rpe.org.in/article.asp?issn=0972-0464;year=2018;volume=41;issue=4;spage=181;epage=188;aulast=Ekundayo |
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