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:3/29/2017)... 29, 2017  higi, the health IT company that ... North America , today announced a Series B ... of EveryMove. The new investment and acquisition accelerates higi,s ... to transform population health activities through the collection and ... higi collects and secures data today on behalf ...
(Date:3/27/2017)... 2017  Catholic Health Services (CHS) has been ... (HIMSS) Analytics for achieving Stage 6 on the ... In addition, CHS previously earned a place in ... electronic medical record (EMR). "HIMSS Analytics ... EMR usage in an outpatient setting.  This recognition ...
(Date:3/24/2017)... , Mar 24, 2017 Research and Markets ... System Market Analysis & Trends - Industry Forecast to 2025" ... ... grow at a CAGR of around 15.1% over the next decade ... industry report analyzes the market estimates and forecasts for all the ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... AMRI, ... and biotechnology industries to improve patient outcomes and quality of life, will now ... testing are being attributed to new regulatory requirements for all new drug products, ...
(Date:10/11/2017)... CA (PRWEB) , ... October 11, 2017 , ... ... upregulate any gene in its endogenous context, enabling overexpression experiments and avoiding the ... system with small RNA guides is transformative for performing systematic gain-of-function studies. ...
(Date:10/11/2017)... ... October 11, 2017 , ... Proscia Inc ., a ... Webinar titled, “Pathology is going digital. Is your lab ready?” with Dr. Nicolas ... practices and how Proscia improves lab economics and realizes an increase in diagnostic ...
(Date:10/11/2017)... ... October 11, 2017 , ... Disappearing forests and increased emissions are the ... million people each year. Especially those living in larger cities are affected by air ... one of the most pollution-affected countries globally - decided to take action. , “I ...
Breaking Biology Technology:
Cached News: