Navigation Links
Researchers from Hebrew U., US discover how mercury gets into fish we eat
Date:2/28/2011

Jerusalem, February 27, 2011 -- Researchers from the Hebrew University of Jerusalem and the US have discovered the mechanism whereby dangerous mercury eventually finds its way into the fish we eat from the open seas and oceans.

The researchers, Prof. Menachem Luria from the Fredy and Nadine Herrmann Institute of Earth Sciences at the Hebrew University and Dr. Daniel Obrist of the University of Nevada, found that "passive" mercury normally found in the atmosphere is converted into an "active," oxidized form in the presence of bromine. The passive mercury is generally non-transferable, whereas the active form is readily absorbed into the environment.

The air over the Dead Sea was chosen for the experiments on mercury oxidation even though it does not contain any fish since it has unusually high levels of bromine that is emitted from the surface into the atmosphere, converting the mercury there into the oxidized mercury.

"In the world generally, the amount of oxidized mercury in the atmosphere constitutes about one percent of all the mercury in the atmosphere," said Prof. Luria, "while above the Dead Sea the oxidized mercury often amounts up to about 50 percent."

In fact, the bromine in the air over the Dead Sea is 200 times greater than over other bodies of water, say the researchers, due not only to the high level of bromine present on the surface but also to the high rate of its evaporation into the atmosphere because of the very high temperatures there. It is important to note, they emphasize, that this process of conversion of passive into active mercury occurs over all bodies of water, even though it may be at much lower levels than at the Dead Sea.

Although health officials in the world have issued warnings from time to time about the danger of mercury found in fish, the process by which the inactive mercury is converted into the active, oxidized form was previously unknown. The current research has now r
'/>"/>

Contact: Jerry Barach
jerryb@savion.huji.ac.il
972-258-64772
The Hebrew University of Jerusalem
Source:Eurekalert

Page: 1 2

Related biology news :

1. NC State researchers get to root of parasite genome
2. Researchers find animal with ability to survive climate change
3. Researchers find an essential gene for forming ears of corn
4. Researchers note differences between people and animals on calorie restriction
5. Researchers study acoustic communication in deep-sea fish
6. Researchers discover that growing up too fast may mean dying young in honey bees
7. Researchers study how pistachios may improve heart health
8. UI researchers find potentially toxic substance present in Chicago air
9. Researchers develop new self-training gene prediction program for fungi
10. Case Western Reserve University researchers track Chernobyl fallout
11. Childrens National researchers develop novel anti-tumor vaccine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... ALBUQUERQUE, N.M. A credit-card-sized anthrax detection cartridge developed ... small business makes testing safer, easier, faster and cheaper. ... causes anthrax, is commonly found in soils all over ... illness in both humans and animals. The bacteria can ... to B. anthracis may occur through skin ...
(Date:4/17/2014)... A Kansas State University engineer has developed a ... detects improvised explosive devices. The same technique could ... the Steven M. and Kay L. Theede chair ... nuclear engineering, and his research team have created ... or in car trunks. The distance detection method ...
(Date:4/17/2014)... Clemson professor Rajendra Singh Thursday as a "Champion ... expand solar deployment in the residential, commercial and ... Professor of Electrical and Computer Engineering and director ... a local hero leading the charge across the ... solar power and driving policy changes at the ...
Breaking Biology News(10 mins):Pocket-sized anthrax detector aids global agriculture 2Pocket-sized anthrax detector aids global agriculture 3Patented research remotely detects nitrogen-rich explosives 2White House honors Clemson professor as 'Champion of Change' for solar deployment 2
... at the recent United Nations meeting emphasized nutrition as ... of State Hillary Clinton said a key focus is ... of Missouri nutrition experts say getting back to basics ... families and communities in many ways. As ...
... to be met is a significant increase in the use ... to grow in the future, because biomass is used in ... and various types of materials. The planning of biomass usage ... gap between what is included in countries, and regions, current ...
... Clemson University researchers recently reported finding a new class ... how cells repair damaged DNA. The finding from Cao,s ... with computational chemist Brian Dominy appeared in the Sept. ... "A new family of deamination repair enzymes in ...
Cached Biology News:Eating balanced meals, farm-fresh produce benefits families, communities, nutrition researchers say 2Better planning required if EU is to meet energy targets 2Clemson University biochemists identify new genetic code repair tool 2
(Date:1/15/2014)... January 15, 2014 A study has been ... the Formula 1 track could help to tackle the problem ... (MAT), Stowhealth (a GP surgery based in Stowmarket) and academics ... Simplyhealth. Telemetry technology, which is inspired by equipment ...
(Date:1/15/2014)... Rochester, NY (PRWEB) January 15, 2014 The ... cause a major disease. One of these latent viruses is ... is rheumatoid arthritis (RA). Rheumatoid arthritis (RA) is a chronic ... the theory, a study found that RA patients have high ...
(Date:1/15/2014)... Freeslate, Inc ., the leading ... Lupin Limited, one of India’s top five pharmaceutical companies, ... System for high throughput solid form screening. ... a wide range of quality, affordable generic and branded ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Date: Friday, April ... Location: Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... nonprofit organization solely dedicated to finding a cure for hepatitis ... worldwide, will host its annual Crystal Ball on Friday, April ...
Breaking Biology Technology:Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... and OSAKA, Japan, May 18, 2011 Cellectis ... genome customization specialist, has appointed Wako Pure Chemical ... Company,s broad portfolio of research products and services, ... Chemical Industries is a leading distributor of research ...
... SAN JOSE, Calif., May 18, 2011 Oclaro, Inc. ... optical communications and laser solutions, today announced that its ... by Pantec Biosolutions, the leading provider of epidermal medical ... Laser Epidermal System) platform. This cutting-edge new laser platform ...
... May 17, 2011 New data presented today ... moderate to severe chronic prostatitis/chronic pelvic pain syndrome ... meeting of the American Urological Association, RAPAFLO(R) also ... of life. Chronic prostatitis/chronic pelvic pain ...
Cached Biology Technology:Cellectis bioresearch Appoints Wako as Exclusive Distributor of its Genome Customization Solutions in Japan 2Pantec Biosolutions Selects Oclaro Laser Diode Bars for Transdermal Drug Delivery and Tissue Ablation Systems 2Pantec Biosolutions Selects Oclaro Laser Diode Bars for Transdermal Drug Delivery and Tissue Ablation Systems 3Pantec Biosolutions Selects Oclaro Laser Diode Bars for Transdermal Drug Delivery and Tissue Ablation Systems 4Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 2Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 3Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 4Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 5Watson Pharmaceuticals Announces New Research Showing RAPAFLO(R) (silodosin) Improves Outcomes for Chronic Prostatitis/Chronic Pelvic Pain Syndrome 6
Component of HyperMu™ Insertion Kit...
Request Info...
... x 2 , Maintenance ... /each , Immunizations/Boost injections x5 ... ml) x1 /each , Production bleed ... Final Bleed ~ 100 ml blood (~50 ml ...
... 500 g protein in ... mouse whole cell lysate; Abelson transformed macrophage ... as Western blotting positive control, ... and thawing should be minimized, ...
Biology Products: