Dose rate assessment of terrestrial gamma radiation in the Delta region of Nigeria

A M Arogunjo; I P Farai; I A Fuwape

doi:10.1093/rpd/nch010

Dose rate assessment of terrestrial gamma radiation in the Delta region of Nigeria

Radiat Prot Dosimetry. 2004;108(1):73-7. doi: 10.1093/rpd/nch010.

Authors

A M Arogunjo¹, I P Farai, I A Fuwape

Affiliation

¹ Department of Physics, Federal University of Technology, Akure, Nigeria. [email protected]

PMID: 14974607
DOI: 10.1093/rpd/nch010

Abstract

In situ gamma spectroscopy has been employed to characterise natural radiation in the soil at 32 locations in the Delta region of Nigeria. The outdoor gamma dose rates in the air due to 40K, 238U and 232Th in the soil were 1.5 +/- 0.9 nGy h(-1), 6.9 +/- 1.6 nGy h(-1) and 16.3 +/- 3.1 nGy h(-1) respectively. The estimated total annual outdoor effective dose to the people in the region was 31.6 microSv y(-1).

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Background Radiation*
Environmental Monitoring*
Gamma Rays*
Geography
Nigeria
Radiation Dosage
Radiometry / methods*
Soil / analysis*
Soil Pollutants, Radioactive / analysis*

Substances

Soil
Soil Pollutants, Radioactive