Seasonal and spatial variations of rare earth elements in rainwaters, river waters and total suspended particles in air in South Korea

Ryu, Jong-Sik; Lee, K.S.; Lee, S.G.; Lee, D.; Chang, Ho‐Wan

doi:10.1016/j.jallcom.2006.08.002

Cited by 28 publications

(9 citation statements)

References 9 publications

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“…6). Generally, a highly positive Eu anomaly in water is indicative of water-rock interaction, which involves the preferential dissolution of plagioclase caused by marineinfluenced alumino-silicates and their weathering products (Ryu et al, 2007). This is supported by the depositional environment of the Mannville Formation and the δ 2 H and δ 18 O values of Mannville fluids ( Table 1) that indicate moderate fluid-rock interaction (Cheung et al, in review).…”

Section: Water-rock Interaction Using Rees As a Tracermentioning

confidence: 98%

Produced fluids and shallow groundwater in coalbed methane (CBM) producing regions of Alberta, Canada: Trace element and rare earth element geochemistry

Cheung

Sanei

Klassen

et al. 2009

International Journal of Coal Geology

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Section: Water-rock Interaction Using Rees As a Tracermentioning

confidence: 98%

Produced fluids and shallow groundwater in coalbed methane (CBM) producing regions of Alberta, Canada: Trace element and rare earth element geochemistry

Cheung

Sanei

Klassen

et al. 2009

International Journal of Coal Geology

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“…Rainwater from Sagamihara (Japan) was also enriched in some acid-soluble MREE (Sholkovitz, 1993;Shimamura et al, 2007). The second type is characterized by flat REE patterns such as in rainwater of suburban Tokyo, Anmyeon Island (Yellow sea) and Seoul (Ryu et al, 2007;Iwashita et al, 2011;Tseren-Ochir et al, 2011). This type also includes patterns slightly enhanced in either LREE or HREE.…”

Section: Introductionmentioning

confidence: 99%

Rare earth elements concentrations and speciation in rainwater from Guiyang, an acid rain impacted zone of Southwest China

et al. 2016

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Rare earth elements (REEs) and major ions were determined in rainwater samples collected from Guiyang in the acid rain impacted zone of Southwest China. The concentrations of total dissolved and acid-soluble REEs in rainwater are higher than those of most of the world's cities as well as the local surface water. The dissolved REE concentrations are negatively correlated to pH in rainwater. This is consistent with acidification of rainwater resulting in increasing REE concentrations. Speciation calculations using the PHREEQC-Model predict that the free REE metal ion (i.e., Ln 3+), sulfate (LnSO 4 +), oxalate (LnOx + and LnOx 2-) and fluoride (LnF 2+) complexes were relatively important forms of dissolved REE. Although the contribution to rainwater acidity of oxalic acid is much lower than that of sulfuric acid, the proportion of REE-oxalate complexes is not lower than that of REE-sulfate complexes in rain waters. The rainwater is enriched in the middle REEs (MREE) compared to both the light REEs (LREE) and heavy REEs (HREE). REE-phosphate complexes, phosphatic minerals and a Fe-Mn-oxyhydroxide coating are more likely controls on the development of MREE enrichment in the rainwater. Complexation of sulfate and REE played little role in the development of MREE enrichment, even though sulfate is the most important anion in acidic rainwater. In the shale-normalized REE pattern plot, La showed a clear positive anomaly. La might have two main anthropogenic sources in rainwater. One of the important sources could be automobile emission; another main source of excess La in rainwater could be the REE fertilizer that has been widely used in the agriculture of China for approximately 30 years.

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Section: Partitioning Of Wet Depositionmentioning

confidence: 99%

“…The TSP data for rain samples were calculated according to the scavenging ratio given by Ryu et al (2007). They reported 60 % of TSP scavenged to rainwater after a 5-h precipitation event (Ryu et al 2007). The f om value was determined using the total organic carbon content in a previous study (Cindoruk 2011).…”

Section: Partitioning Of Wet Depositionmentioning

confidence: 99%

Atmospheric deposition of organochlorine pesticides by precipitation in a coastal area

Cindoruk

Öztürk

2016

Environ Sci Pollut Res

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Wet deposition fluxes of organochlorine pesticides (OCPs) were determined for rain samples collected in a coastal area of Turkey. Seventeen precipitation samples were collected over a 1-year period from 2008 to 2009. Rainwater was accumulated at the beginning of rain events using real time monitoring. Atmospheric concentrations were also measured in parallel with deposition samples. Both atmospheric concentrations and deposition fluxes were determined as particle and gas phases. The particle phase and dissolved phase deposition fluxes were 794.26 ± 756.70 ngm day and 800.77 ± 672.63 ngm day, respectively. The washout ratios for OCP compounds were calculated separately for the particle and dissolved phases using the atmospheric concentrations and rain concentrations. The minimum washout ratio for the particle phase was 2339.47 for Endrin aldehyde, whereas the maximum washout ratio was 497593.34 for Methoxychlor. The maximum washout ratio for the dissolved phase was 247523.89 for Endosulfan beta, whereas the minimum washout ratio was 10169.69 for p,p'-DDT. The dry deposition velocities ranged from 0.01 to 1.67 cms. The partitioning of wet deposition between the particle and dissolved phases was 50 % in terms of total OCP deposition.

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Seasonal and spatial variations of rare earth elements in rainwaters, river waters and total suspended particles in air in South Korea

Cited by 28 publications

References 9 publications

Produced fluids and shallow groundwater in coalbed methane (CBM) producing regions of Alberta, Canada: Trace element and rare earth element geochemistry

Produced fluids and shallow groundwater in coalbed methane (CBM) producing regions of Alberta, Canada: Trace element and rare earth element geochemistry

Rare earth elements concentrations and speciation in rainwater from Guiyang, an acid rain impacted zone of Southwest China

Atmospheric deposition of organochlorine pesticides by precipitation in a coastal area

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