Analysis of Internal Exposure Associated with Consumption of Crops and Groundwater from the High Background Radiation Area of Mrima Hill, Kenya

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dc.contributor.authorChege, M.
dc.contributor.authorHashim, N.
dc.contributor.authorMerenga, A.
dc.contributor.authorTschiersch, J
dc.date.accessioned2015-06-12T07:55:34Z
dc.date.available2015-06-12T07:55:34Z
dc.date.issued2014-09
dc.descriptiondoi:10.1093/rpd/ncv261en_US
dc.description.abstractSpecific concentrations of (226)Ra, (232)Th and (40)K were measured in cassava tubers, cassava leaves and groundwater obtained from the high background radiation area of Mrima hill and used in the evaluation of the ingested dose. Cassava tubers, cassava leaves and groundwater registered average (226)Ra concentrations of 60 ± 5, 141 ± 11 and 4.3 ± 0.3 Bq kg(-1), respectively. (232)Th was not detected in cassava leaves although it was present in cassava tubers as well as in groundwater in average concentrations of 35.3±61.5 and 2.0±0.1 Bq kg(-1), respectively. (40)K was present in all samples in average concentrations of 842±539 Bq kg(-1) in cassava tubers, 1708 ± 552 Bq kg(-1) in cassava leaves and 91.4 Bq kg(-1) in groundwater. The total annual effective dose due to ingestion was found to be 7.9 mSv y(-1) of which 2.4 mSv y(-1) was due to cassava tubers, 3.8 mSv y(-1) due to cassava leaves and 1.7 mSv y(-1) due to water.en_US
dc.identifier.citation9th International Symposium on the Natural Radiation Environment (NRE-IX) September, 2014en_US
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/12900
dc.language.isoenen_US
dc.publisherOxford University Pressen_US
dc.titleAnalysis of Internal Exposure Associated with Consumption of Crops and Groundwater from the High Background Radiation Area of Mrima Hill, Kenyaen_US
dc.typeArticleen_US
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