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Society for Radiological Protection logo Society for Radiological Protection logo External dose assessment from the measured radioactivity in soil samples collected from the Islamabad capital territory, Pakistan

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dc.contributor.author Rahman, S U
dc.contributor.author Faheem, M
dc.contributor.author Anwar, J
dc.contributor.author Ziafat, M
dc.contributor.author Nasir, T
dc.contributor.author Matiullah
dc.date.accessioned 2019-11-15T09:58:35Z
dc.date.available 2019-11-15T09:58:35Z
dc.date.issued 2009-11-18
dc.identifier.issn 29 499
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/1377
dc.description.abstract It is a well known fact that natural radionuclides are the major contributors towards the gamma ray exposure received by the general public. In this context, soil samples were collected from the Islamabad capital territory and activities due to 226Ra, 232Th, 40K and 137Cs were measured using gamma ray spectrometry: activities ranged from 41.5–106.2 Bq kg−1, 4.0–193.8 Bq kg−1, 325.3–657.4 Bq kg−1 and 1.6–9.45 Bq kg−1, respectively. From the measured activities, the external hazard index, internal hazard index, absorbed dose rate and mean annual effective dose were calculated. External and internal hazard indices were calculated as 0.76 and 0.95, respectively. The mean absorbed dose rate was found to be 130.97 nGy h−1. The mean effective dose was estimated as 0.16 mSv y−1, which is less than the maximum permissible dose of 1 mSv y−1. en_US
dc.publisher Institute of Physics (IOP) en_US
dc.subject Natural Science en_US
dc.subject radioactivity en_US
dc.subject soil samples en_US
dc.subject Islamabad en_US
dc.subject Pakistan en_US
dc.title Society for Radiological Protection logo Society for Radiological Protection logo External dose assessment from the measured radioactivity in soil samples collected from the Islamabad capital territory, Pakistan en_US


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