| dc.contributor.author | Otwoma, D | |
| dc.contributor.author | Patel, J P | |
| dc.contributor.author | Bartilol, S | |
| dc.contributor.author | Mustapha, A O | |
| dc.date.accessioned | 2013-02-24T08:33:31Z | |
| dc.date.issued | 2000 | |
| dc.identifier.citation | Radiation Protection Dosimetry | en |
| dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/10933 | |
| dc.identifier.uri | http://www.ncbi.nlm.nih.gov/pubmed/23486485 | |
| dc.description.abstract | The radiological hazard of naturally occurring radioactive material in Homa Mountain found in southwestern Kenya was investigated after 210 point measurements and 44 samples were analyzed. In situ measured average outdoor absorbed dose rate in air using survey meters was
found to vary from 154.8 to 2280.6 nGy h-1. Using HpGe detection system radioactivity
concentrations mean (range) values measured for 40K, 226Ra and 232Th were 915±3 (64–3017),
195±8 (17– 1447) and 409±4 (23-1369) Bq kg-1, respectively. The calculated range, of the
annual effective dose for a person living in Homa Mountain area, varied from 28.6 to 1681.2,
with a mean of 470.4 µSv. All calculated average radiological indices, namely Radium
equivalent, Representative level, Gamma activity, External and Internal hazard were higher than
the limits set by various national and international bodies. These results imply Homa Mountain
region is a high background radiation area. | en |
| dc.language.iso | en | en |
| dc.publisher | ScholarOne | en |
| dc.subject | Effective Dose | en |
| dc.subject | Radiation Hazards | en |
| dc.subject | Natural Radionuclides | en |
| dc.subject | Homa Mountain, Southwestern, Kenya | en |
| dc.title | Estimation of Annual Effective Dose and Radiation Hazards due to Natural Radionuclides in Homa Mountain, southwestern, Kenya | en |
| dc.type | Article | en |
| local.publisher | School of Physical Sciences | en |
