Source and distribution of radon-222 and radium-226 within South Atlantic Bight waters
Radon and radium concentrations were measured in South Atlantic Bight (SAB) waters during six weeks in the summer of 1981. Sampling was designed to coincide with subsurface intrusions of cold Gulf Stream water onto the continental shelf and was part of a large study of the SAB. The distinct zonation of sediment types within the SAB offered the possibility to use radon to trace advection of intruded bottom water. It was determined that the bottom excess radon concentrations, calculated from radon and radium data, were distributed into three groups. The first group of concentrations ranged from 320 to 732 dpm/100L (n=3) and was associated with water occupying the nearshore zone. The second set was sampled within intruded water in the midshelf region. These values ranged from 25.5 to 151.5 dpm/100L (n=35). The third range describes radon concentrations contained in water that is a potential source of upwelled Gulf Stream water. These shelf break concentrations ranged from -1.0 to 213.0 dpm/100L (n=13), and were found to differ significantly (P < 0.001) from the midshelf range of radon concentrations (Mann-Whitney test). The division of radon concentrations into three distinct zones within the SAB waters may provide an indicator of shelf and Gulf Stream water interactions. 55 references, 24 figures, 4 tables.
- Research Organization:
- Georgia Inst. of Tech., Atlanta (USA)
- DOE Contract Number:
- AS09-76EV00890
- OSTI ID:
- 5590701
- Report Number(s):
- DOE/EV/00890-T5; ON: DE84004167
- Resource Relation:
- Other Information: Thesis
- Country of Publication:
- United States
- Language:
- English
Similar Records
Release and transport of radium during weathering in central and north Florida
Radium-226 and radon-222 in Southern California groundwaters: Spatial variations and correlations
Related Subjects
RADIUM 226
RADIOECOLOGICAL CONCENTRATION
RADON 222
EXPERIMENTAL DATA
GEOGRAPHICAL VARIATIONS
SEAWATER
SEDIMENTS
SOUTH ATLANTIC BIGHT
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
ATLANTIC OCEAN
DATA
DAYS LIVING RADIOISOTOPES
ECOLOGICAL CONCENTRATION
EVEN-EVEN NUCLEI
HEAVY NUCLEI
HYDROGEN COMPOUNDS
INFORMATION
ISOTOPES
NUCLEI
NUMERICAL DATA
OXYGEN COMPOUNDS
RADIOISOTOPES
RADIUM ISOTOPES
RADON ISOTOPES
SEAS
SURFACE WATERS
VARIATIONS
WATER
YEARS LIVING RADIOISOTOPES
520301* - Environment
Aquatic- Radioactive Materials Monitoring & Transport- Water- (1987)