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Environment

Marine science

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Displaying 101 - 125 of 244

Organohalogen contaminants in blood of Kemp's ridley (Lepidochelys kempii) and green sea turtles (Chelonia mydas) from the Gulf of Mexico

December 9, 2009
Author(s)
Robert R. Swarthout, Jennifer Lynch, Margie Peden-Adams, Andre Landry, Patricia Fair, John Kucklick
The threat that exposure to organohalogen (OH) contaminants poses to endangered populations of Kemp's ridley (Lepidochelys kempii) and green sea turtles (Chelonia mydas) is not well understood, partly because few OH data are available. Blood samples from

NMR-Based Microbial Metabolomics and the Temperature-Dependent Coral Pathogen Vibrio coralliilyticus

September 18, 2009
Author(s)
Daniel W. Bearden, Arezue Boroujerdi, Tracey B. Schock, Alexander Meyers, Elizabeth C. Pollock, Sara Lien Huynh, Maria Vizcaino, Pamela J. Morris
Coral bleaching occurs when the symbioses between coral animals and their zooxanthellae is disrupted, either as part of a natural cycle or as the result of unusual events. The bacterium Vibrio coralliilyticus has been linked to coral disease globally (for

SEABIRD TISSUE ARCHIVAL AND MONITORING PROJECT: Egg Collections and Analytical Results for 2002-2005

February 5, 2009
Author(s)
Stacy S. Schuur, Paul R. Becker, Russell D. Day, Michael B. Ellisor, Aurore Guichard, Amanda J. Moors, David Point, Rebecca S. Pugh, David G. Roseneau
The Seabird Tissue Archival and Monitoring Project (STAMP) has continued to collect and bank murre and gull eggs to obtain new information on chlorinated pesticides, polychlorinated biphenyls (PCBs), brominated flame retardants, mercury, and organotin

Fish-Related Standard Reference Materials

February 1, 2009
Author(s)
Michele M. Schantz, Steven J. Christopher, William C. Davis, Russell D. Day, Jennifer M. Lynch, John R. Kucklick, Stephen E. Long, Elizabeth A. Mackey, Barbara J. Porter, Dianne L. Poster, Katherine E. Sharpless, Gregory C. Turk, Stephen A. Wise
The National Institute of Standards and Technology (NIST) has developed four Standard Reference Materials (SRMs) related to the monitoring of contaminants in fish and marine mammals: SRM 1588b Organics in Cod Liver Oil, SRM 1945 Organics in Whale Blubber

Consideration and Influence of Complexed forms of Mercury Species on the reactivity Patterns Determined by Speciated Isotope Dilution Model Approaches: A Case for Natural Biological Reference Materials

June 1, 2008
Author(s)
David Point, J. I. Garcia Alonso, William C. Davis, Steven J. Christopher, Aurore Guichard, O.F. X. Donard, Paul R. Becker, Gregory C. Turk, Stephen A. Wise
The origins and the processes driving the inadvertent transformations of inorganic mercury (iHg) and methylmercury (MeHg) in cryogenically stored and homogenized fresh-frozen versus freeze-dried biological Standard Reference Materials (SRM) were

Simultaneous Determination of Inorganic Mercury, Methylmercury, and Total Mercury Concentrations in Cryogenic Fresh-Frozen and Freeze-dried Biological Reference Materials

October 1, 2007
Author(s)
David Point, William C. Davis, J. I. Garcia Alonso, Mathilde Monperrus, Steven J. Christopher, O.F. X. Donard, Paul R. Becker, Stephen A. Wise
A double spike speciated isotope dilution (DS-SID) reaction model was developed to study and correct for the inadvertent transformations affecting methylmercury (MeHg), inorganic mercury (iHg) and total mercury (HgT) measurements in biological tissues

Marine Environmental Specimen Bank: Clean Room and Specimen Bank Protocols

January 1, 2007
Author(s)
Rebecca S. Pugh, Michael B. Ellisor, Amanda J. Moors, Barbara J. Porter, Paul R. Becker
The National Biomonitoring Specimen Bank (NBSB) was established in 1979 from the pilot Environmental Specimen Bank Program and is maintained at the National Institute of Standards and Technology. Numerous research projects and programs have been developed

Persistent Organic Pollutants in Alaska Ringed Seals (Phoca hispida) and Walrus (Odobenus rosmarus) Blubber From the National Biomonitoring Specimen Bank Archive

August 1, 2006
Author(s)
John R. Kucklick, M M. Krahn, Paul R. Becker, Barbara J. Porter, Michele M. Schantz, Geoffrey S. York, T M. O'Hara, Stephen A. Wise
Since 1987, the Alaska Marine Mammal Tissue Archival Project (AMMTAP) has collected tissues from 18 marine mammals species. Specimens are archived in the National Institute of Standards and Technology s National Biomonitoring Specimen Bank (NIST-NBSB)

Ionizing Radiation-Induced Destruction of Benzene and Dienes in Aqueous Media

March 28, 2006
Author(s)
M I. Al-Sheikhly, Dianne L. Poster, Jung-Chul An, Pedatsur Neta, Joseph Silverman, Robert E. Huie
Pulse radiolysis with spectrophotometric and conductometric detection was utilized to study the formation and reactions of radicals from benzene and dienes in aqueous solutions. The benzene OH adduct, C6H6OH, reacts with O2 (k = 3 x 108 L mol-1 s-1) in a

Preparation of Reference Material 8504, Transformer Oil

February 1, 2006
Author(s)
Dianne L. Poster, Michele M. Schantz, Stephen A. Wise
A new reference material (RM), RM 8504, has been prepared for use as a diluent oil with Aroclors in transformer oil Standard Reference Materials (SRMs) 3075-3080 or SRM 3090 when developing and validating methods for the determination of polychlorinated

Description and Results of the 2003 NIST/NOAA Interlaboratory Comparison Exercise Program for Organic Contaminants in Marine Mammal Tissues

November 1, 2005
Author(s)
John R. Kucklick, Rebecca S. Pugh, Paul R. Becker, Michele M. Schantz, Stephen A. Wise, T K. Rowles
The National Institute of Standards and Technology (NIST), in support of the National Oceanic and Atmospheric Administration s Marine Mammal Health and Stranding Response Program (NOAA/MMHSRP) conducts annual interlaboratory comparison exercises for the

Description and Results of the 2001 NIST/NOAA Interlaboratory Comparison Exercise Program for Organic Contaminants in Marine Mammal Tissues

September 1, 2005
Author(s)
John R. Kucklick, Rebecca S. Pugh, Paul R. Becker, Michele M. Schantz, T K. Rowles
The National Institute of Standards and Technology (NIST), in support of the National Oceanic and Atmospheric Administration s Marine Mammal Health and Stranding Response Program (NOAA/MMHSRP) conducts annual interlaboratory comparison exercises for the

Chemicals in Arctic Seabirds: I. Annotated Bibliography

January 1, 2005
Author(s)
Stacy S. Vander-Pol, Rebecca S. Pugh, Paul R. Becker
The purpose of the work resulting in this report was to compare literature values of contaminant concentrations in the 39 species of Arctic seabirds that live or breed in Alaska. Contaminant data from literature tables are currently being entered into the
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