Radium isotopes in the Ulsan Bay

Lee, Jae Seong; Kim, Kee Hyun; Moon, D.S

doi:10.1016/j.jenvrad.2004.11.005

Cited by 12 publications

(4 citation statements)

References 29 publications

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“…In a Spanish estuary affected by phosphate industry 226 Ra was about 10 times higher when direct discharge to the estuary took place but became comparable to our results after conservation measures minimized direct discharge (Perianez, 2005). In other estuaries radium activities about half of those encountered in the present study have been found (Hancock and Murray, 1996;Lee et al, 2005). …”

Section: Radium Activitiessupporting

confidence: 85%

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Pollution in an Urban Bayou: Magnitude, Spatial Distribution and Origin

Liebens

Mohrherr

Rao

et al. 2006

Water Air Soil Pollut

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Bayou Texar in Pensacola, FL, receives pollutants from a variety of sources, presumably including two USEPA's Priorities List sites. To evaluate the potential negative impacts of pollution in this type of setting, we determined the level and distribution of some of the pollutants in the bayou and identified the most likely sources for them. Results show that fluoride, a tracer for a contaminated groundwater plume from one of the Priorities List sites, enters sediments in the northern part of the bayou and migrates into the water. Radium in the bayou most likely also emanates from the contaminated groundwater plume. However, 228 Ra/ 226 Ra isotope ratios indicate that the radium enters the plume from the aquifer matrix, and thus does not originate directly at the Priorities List site. PAHs of creosote origin are known to have been released by the second Priorities List site but apparently they do not affect the sediments of the bayou because ratios of individual PAHs show that they are derived from combustion. The concentrations of the PAHs are slightly higher in the northern part of the bayou. Unlike other pollutants, most metals exceed their probable effects level (PEL) in many places in the bayou. The highest concentrations are observed in the northern part of the bayou. Low metal concentrations in monitoring wells and in deep sediments in the bayou suggest that the metals do not come from the groundwater plume. Sediment transport analysis shows that sediments are trapped in the northern part of the bayou. Consequently, long term accumulation explains the observed high concentrations of heavy metals, and other sediment bound pollutants, in the northern part of Bayou Texar. Pollutant concentrations vary greatly spatially, demonstrating the importance of geographical analysis for this type of environmental research.

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Section: Radium Activitiessupporting

confidence: 85%

“…The 228 Ra/ 226 Ra activity ratio in bayou water is variable and does not help elucidate the origin of the radium. The variability is most likely due to the geochemical processes that have been described for estuarine mixing zones like Bayou Texar (Plater et al, 1995;Lee et al, 2005).…”

Section: Origin Of Radium In the Acc Aquifermentioning

confidence: 95%

Pollution in an Urban Bayou: Magnitude, Spatial Distribution and Origin

Liebens

Mohrherr

Rao

et al. 2006

Water Air Soil Pollut

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“…The properties of water mixing in an estuary are controlled by ionic strength, pH, chemical composition, flocculation, removal of organisms and adsorption/desorption of constituents. All of these factors can strongly influence the flow of chemical species into the ocean (Lee et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Use of multitracers for the study of water mixing in the Paraíba do Sul River estuary

Souza

Godoy

et al. 2010

Journal of Environmental Radioactivity

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“…As propriedades de mistura da água em um estuário são controladas pela força iônica, pH, composição química, floculação, remoção de organismos e adsorção ou dessorção de constituintes, os quais podem influenciar fortemente o fluxo de espécies químicas para o oceano (Lee, 2005).…”

Section: Distribuições De Ra Em áGuas Estuarinasunclassified

Levantamento dos níveis de radioatividade natural em águas do alto Vale do Ribeira à planície costeira do litoral sul do Estado de São Paulo

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Radium isotopes in the Ulsan Bay

Cited by 12 publications

References 29 publications

Pollution in an Urban Bayou: Magnitude, Spatial Distribution and Origin

Pollution in an Urban Bayou: Magnitude, Spatial Distribution and Origin

Use of multitracers for the study of water mixing in the Paraíba do Sul River estuary

Levantamento dos níveis de radioatividade natural em águas do alto Vale do Ribeira à planície costeira do litoral sul do Estado de São Paulo

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