Mapping soil radioactivity in the Fernando de Noronha archipelago, Brazil

Mapping soil radioactivity in the Fernando de Noronha archipelago, Brazil

A radioactivity survey was conducted on some of the most alkaline volcanic islands in the world. Seventy soil samples were analysed using gamma spectrometry. 226 Ra, 232 Th, 40 K and 137 Cs (Bq kg −1 ) activity concentration varied from 4.6 to 550, 10 to 298, 13 to 1280 and <0.3 to 2.0, respectiv...

Full description

Saved in:
Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry Vol. 311; no. 1; pp. 577 - 587
Main Authors: Ribeiro, Fernando C. A., da C. Lauria, Dejanira, do Rio, Mônica A. P., da Cunha, Fernanda G., de Oliveira Sousa, Wanderson, de Albuquerque Medeiros Lima, Enjôlras, Franzen, Melissa
Format: Journal Article
Language:English
Published: Dordrecht Springer Netherlands 2017
Springer
Springer Nature B.V
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Ionizing radiation
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Radiation effects
Radioactivity
Soil analysis
Soil mapping
Soils, Radioactive substances in
Spectrometry
Brazil
ASW, Brazil, Pernambuco, Fernando de Noronha Archipelago
Cs
Soil
Mapping
Environmental radioactivity
Radium isotopes
Volcanic archipelago
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A radioactivity survey was conducted on some of the most alkaline volcanic islands in the world. Seventy soil samples were analysed using gamma spectrometry. 226 Ra, 232 Th, 40 K and 137 Cs (Bq kg −1 ) activity concentration varied from 4.6 to 550, 10 to 298, 13 to 1280 and <0.3 to 2.0, respectively. Although the concentration ranges for 232 Th ( 228 Ra) and 226 Ra exceeded the worldwide range, 40 K levels remained low. The lowest values of natural radionuclides were observed over the Quixaba Formation, and the highest values were observed over the Remédios Formation. The median effective dose from external radiation exposure was 0.45 mSv a −1 .
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-016-5059-z