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Vertical distribution of 210Pb and 226Ra and their activity ratio in marine sediment core of the East Malaysia coastal waters
- Source :
- Journal of Radioanalytical and Nuclear Chemistry. 289:953-959
- Publication Year :
- 2011
- Publisher :
- Springer Science and Business Media LLC, 2011.
-
Abstract
- Marine sediment cores were collected from two stations at East Malaysia coastal waters on June 2004. Activity concentrations of 210Pb in sediment core were ranged from 11 Bqkg−1 to 84 Bqkg−1 dry wt. for SR 01 and 4 Bqkg−1 to 66 Bqkg−1 dry wt. for SB 03. Meanwhile, activity concentrations of 226Ra in sediment core were varied significantly depending on the sampling location of SR 01 and SB 03 with ranged 17–26 Bqkg−1 dry wt. and 8–11 Bqkg−1 dry wt., respectively. The activity ratios of 210Pb/226Ra were no significantly different at all sampling stations with an average of 1.78. Refer to the entire results; the activities of 210Pb and 226Ra were higher at station SR 01 than station SB 03, but contrast with ratio of 210Pb/226Ra. The reasons of different 210Pb and 226Ra activity concentration and distribution of their ratios were strictly related to their half lives, environment origin, potential sources and behavior.
- Subjects :
- Hydrology
Activity ratios
Health, Toxicology and Mutagenesis
Public Health, Environmental and Occupational Health
Sampling (statistics)
Sediment
Mineralogy
Pollution
Analytical Chemistry
Nuclear Energy and Engineering
Activity concentration
Environmental science
Radiology, Nuclear Medicine and imaging
Sediment core
Spectroscopy
Environment - origin
Subjects
Details
- ISSN :
- 15882780 and 02365731
- Volume :
- 289
- Database :
- OpenAIRE
- Journal :
- Journal of Radioanalytical and Nuclear Chemistry
- Accession number :
- edsair.doi...........db017f85d5cd60da6cb211c03b60d67b