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:4/17/2017)... 2017 NXT-ID, Inc. (NASDAQ: NXTD ) ... of its 2016 Annual Report on Form 10-K on Thursday April ... ... in the Investor Relations section of the Company,s website at ... at http://www.sec.gov . 2016 Year Highlights: ...
(Date:4/13/2017)... PUNE, India , April 13, 2017 According ... Identity Proofing, Identity Authentication, Identity Analytics, Identity Administration, and Authorization), Service, Authentication ... by MarketsandMarkets™, the IAM Market is expected to grow from USD 14.30 ... Annual Growth Rate (CAGR) of 17.3%. ... ...
(Date:4/11/2017)... 11, 2017 Research and Markets has announced ... report to their offering. ... global eye tracking market to grow at a CAGR of 30.37% ... Tracking Market 2017-2021, has been prepared based on an in-depth market ... landscape and its growth prospects over the coming years. The report ...
Breaking Biology News(10 mins):
(Date:9/17/2017)... ... 17, 2017 , ... GeneOne Life Science, Inc. announces that ... Safety (KMFDS) for an Investigational New Drug application for a Phase I/IIa study ... The study in Korea represents the second clinical trial for GLS-5300. , ...
(Date:9/14/2017)... ... September 14, 2017 , ... Boston Strategic ... experience with Health Economics and Outcomes Research (HEOR) and ‘big data’ to provide ... 2014, US healthcare spending exceeded $3.0 trillion with nearly 1/3 spent on hospitalizations. ...
(Date:9/13/2017)... ... 13, 2017 , ... AMRI, a global contract research, development ... and quality of life for more than 25 years, today announced that John ... the International Standards Organization/Technical Committee 194: Biological and Clinical Evaluation of Medical ...
(Date:9/12/2017)... (PRWEB) , ... September 12, 2017 , ... It wasn’t ... months, it has been hot, hot, hot, as Lajollacooks4u has had a record-breaking number ... , Guests came from far and wide to celebrate company outings, family get-togethers, anniversaries ...
Breaking Biology Technology:
Cached News: