Role of Sediment Resuspension in the Remobilization of Particulate-Phase Metals from Coastal Sediments

2007 ◽  
Vol 41 (7) ◽  
pp. 2282-2288 ◽  
Author(s):  
Linda H. Kalnejais ◽  
William R. Martin ◽  
Richard P. Signell ◽  
Michael H. Bothner
Keyword(s):  
Sediment Resuspension ◽  
Coastal Sediments ◽  
Particulate Phase

scholarly journals Detailed Spectroscopic Studies in the Aquatic Environment Using Synchrotron Radiation

2019 ◽  
Vol 21 ◽  
pp. 185
Author(s):  
N. Moraitis ◽  
K. Vassalos ◽  
T. J. Mertzimekis ◽  
A. Godelitsas ◽  
P. Gamaletsos ◽  
...  
Keyword(s):  
Aquatic Environment ◽  
Spectroscopic Studies ◽  
Coastal Sediments ◽  
Data Sets ◽  
Spectroscopic Techniques ◽  
Metals And Metalloids ◽  
Synchrotron Facility ◽  
Institute Of Technology ◽  
Karlsruhe Institute

The important role of metals and metalloids in the aquatic environment can be studied by means of Syn- chrotron Radiation (SR)-based X-ray spectroscopic techniques. In the present work, we have performed analyses of data sets (μ–XRF, μ–XANES and μ–EXAFS), for coastal sediments and marine precipitates, obtained at the ANKA Synchrotron Facility in Karlsruhe Institute of Technology (KIT, Germany). Prelim- inary results with regard to the distribution and speciation of toxic (Hg and As) and biocompatible (Fe) metals and metalloids are presented herein. It is therefore demonstrated that Fe is easily precipitated as FeIII oxyhydroxides, most likely related to As, as well as ferrihydrite-type FeIII hydrated oxyhydroxides, whereas Hg is rather accumulated in the form of methyl-containing compounds.

scholarly journals Role of Sediment Resuspension on Estuarine Suspended Particulate Mercury Dynamics

2018 ◽  
Vol 52 (14) ◽  
pp. 7736-7744 ◽  
Author(s):  
Emily A. Seelen ◽  
Grace M. Massey ◽  
Robert P. Mason
Keyword(s):  
Sediment Resuspension ◽  
Particulate Mercury ◽  
Suspended Particulate

Distribution of hydrocarbon-utilizing bacteria in Northwestern Atlantic waters and coastal sediments

1974 ◽  
Vol 20 (7) ◽  
pp. 955-962 ◽  
Author(s):  
G. J. Mulkins-Phillips ◽  
James E. Stewart
Keyword(s):  
Heterotrophic Bacteria ◽  
Previous History ◽  
Canadian Arctic ◽  
Coastal Sediments ◽  
Oil Spillage ◽  
History Of ◽  
Microbial Potential ◽  
Hydrocarbon Utilizing Bacteria ◽  
Surface Water Samples

An extensive survey was carried out to aid in understanding the role of indigenous microorganisms in the removal of oil from Northwestern Atlantic temperate to arctic marine environments. The presence of hydrocarbon-utilizing microorganisms was demonstrated in sediments and adjacent waters taken from Bermuda, Canadian Northwest Atlantic and Eastern Canadian Arctic marine shorelines. In addition, surface-water samples (5 m depth) taken at 11 different stations along a transect between Halifax and Bermuda, with one exception, showed the presence of significant numbers of hydrocarbon-utilizing microorganisms. The hydrocarbon-utilizing bacteria present included Nocardia, Pseudomonas, Flavobacter, Vibrio, and Achromobacter species. The fraction of the total heterotrophic bacteria represented by the hydrocarbon utilizers ranged up to 100% depending upon the area's previous history of oil spillage; the bulk of the values were less than 10%. The frequency of specific hydrocarbon utilization in decreasing order was hexadecene-1, pristane, hexadecane, dibenzothiophene, anthracene, and decalin. The location, numbers, variety, and broad capacity of the microbial hydrocarbon utilizers illustrate their ubiquity and indicate the microbial potential for removal or conversion of oil in the environments examined.

The role of sediment resuspension duration in release of PAHs

2008 ◽  
Vol 53 (18) ◽  
pp. 2777-2782 ◽  
Author(s):  
JingLan Feng ◽  
ZhenYao Shen ◽  
JunFeng Niu ◽  
ZhiFeng Yang
Keyword(s):  
Sediment Resuspension
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