HOME >> BIOLOGY >> NEWS
Unknown contaminant found in seabird eggs

A previously unknown contaminant, similar to PCBs and dioxins, and suspected to be of marine origin, has been found in the eggs of Atlantic and Pacific Ocean seabirds. If a marine organism is proven to be the source, it would be the first instance of a naturally produced organohalogen accumulating in the eggs of wild birds.

The research is reported in the Nov. 19 Web edition of Environmental Science & Technology, a peer-reviewed journal of the American Chemical Society, the world's largest scientific society. The article also will appear in the journal's Jan. 1 print edition.

Concentrations of the contaminant were significantly higher in eggs from the Pacific Ocean, as much as 1.5 to 2.5 times higher, according to the article. "In addition," notes one of the study's primary researchers, Dr. Ross Norstrom, Ph.D., of the Canadian Wildlife Service, "storm petrels, which feed on small fish and other organisms that live near the surface of the ocean, had higher levels than diving birds that feed at lower ocean depths." This would suggest, he believes, that the contaminant exists primarily in the surface layer of the ocean.

Generally, scientific thinking is that "all organohalogens that accumulate in wildlife are from industrial sources or other human activities," says Sheryl Tittlemier, principal author of the research article and a Ph.D. candidate at Carleton University in Ottawa, Canada. "The novel organohalogen appears to be a marine phenomenon since it was found in Atlantic and Pacific Ocean seabird eggs, but was absent in herring gull eggs from the freshwater environment of the Great Lakes." The contaminant, whose source is not yet identified, contains high levels of chlorine, bromine and nitrogen, Tittlemier says.

Researchers don't know what effect the contaminant may have on the eggs. "We're planning on doing some toxicological studies to see if the compound has any biologic
'"/>

Contact: Marv Coyner
m_coyner@acs.org
202-872-4460
American Chemical Society
8-Dec-1998


Page: 1 2

Related biology news :

1. NSF-Funded Researcher Plucks Four Unknown Fish Species From Antarctic Waters
2. Creatine Works, But Long-Term Effects Are Still Unknown
3. Sea turtle health linked to contaminants
4. Viruses may be environmentally friendly decontaminants
5. Researchers find mechanism bacteria use to target specific chemical contaminants
6. Amphibians life stages influence contaminant transfer from aquatic to terrestrial environments
7. UGA scientists test less lethal means to determine contaminant uptake
8. INEEL geoscientist to present NAPL contaminant modeling advance at AGU Meeting
9. New device removes drinking water contaminants
10. Medicines, caffeine and antibacterial soap among contaminants found in American streams
11. New system developed for removing contaminants from storm run-off

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/28/2017)... , March 28, 2017 The ... Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video Analytics, ... Region - Global Forecast to 2022", published by MarketsandMarkets, ... 2016 and is projected to reach USD 75.64 Billion ... and 2022. The base year considered for the study ...
(Date:3/24/2017)... 24, 2017 The Controller General of Immigration from ... Abdulla Algeen have received the prestigious international IAIR Award for the ... Continue Reading ... ... Controller Abdulla Algeen (small picture on the right) have received the IAIR ...
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by Technology (Touch-based ... to 2022", published by MarketsandMarkets, the market is expected to be worth USD ... 2022. Continue Reading ... ... ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... and LAGUNA HILLS, Calif. , Oct. ... Cancer Research, London (ICR) and University ... SKY92, SkylineDx,s prognostic tool to risk-stratify patients with multiple myeloma ... MUK nine . The University of Leeds ... partly funded by Myeloma UK, and ICR will perform the ...
(Date:10/10/2017)... ... 2017 , ... San Diego-based team building and cooking events company, Lajollacooks4u, has ... The bold new look is part of a transformation to increase awareness, appeal to ... period. , It will also expand its service offering from its signature gourmet cooking ...
(Date:10/10/2017)... 10, 2017 International research firm Parks Associates announced ... at the TMA 2017 Annual Meeting , October 11 in ... residential home security market and how smart safety and security products impact ... Parks Associates: Smart Home ... "The residential security market has ...
(Date:10/9/2017)... DIEGO , Oct. 9, 2017  BioTech ... biological mechanism by which its ProCell stem cell ... critical limb ischemia.  The Company, demonstrated that treatment ... amount of limbs saved as compared to standard ... the molecule HGF resulted in reduction of therapeutic ...
Breaking Biology Technology:
Cached News: