Navigation Links
Mercury Contamination (Hotspots) Identified

Researchers surveying mercury contamination in fish and birds in the northeastern United States and southeastern Canada has identified five "hotspots" where concentrations// of the element exceed those established for human or wildlife health.

The US and Canadian research team focused on levels of the potent neurotoxin in yellow perch and common loons, but it also took into account contamination in other fish, birds, and mammals. In addition to these hotspots in New England, New York, and Nova Scotia, the researchers found nine "areas of concern" in these regions and in Quebec and New Brunswick. Findings from the team's analysis are summarized in the January 2007 issue of BioScience.

The hotspots are believed to result from complex processes that move atmospherically released mercury through the environment, and from site-specific characteristics such as the high sensitivity of wetlands and forested areas to mercury inputs. Local sources of mercury are also significant. Although mercury is not directly harmful at ambient levels, it is concentrated up to a millionfold and chemically modified in aquatic food chains, resulting in dangerous levels of methylmercury in some wildlife species.

Greater deposition of mercury near areas that are highly sensitive to the element or that are already affected by it could raise the risk to people and wildlife that consume fish.

There is reason to believe, however, that lowering emissions can reduce risk: an analysis of levels of mercury contamination over time in the Merrimack River watershed suggests that lowered emissions reduced mercury levels in biota within a few years.

David C. Evers of the BioDiversity Research Institute in Gorham, Maine led the 10-member research team. The study was based on samples collected over four years by the Northeastern Ecosystem Research Cooperative and made use of 7311 observations for seven species.

The study report in BioScience is a ccompanied by an overview article, written by Charles T. Driscoll of Syracuse University and colleagues, that summarizes current knowledge about mercury contamination in the region; the authors conclude that reductions in mercury emissions beyond those currently under way will be needed to eliminate the element as a health risk to humans or to populations of loons.

Source-Eurekalert
SRI
'"/>




Related medicine news :

1. Mercury Pollution Linked To Rise In Autism
2. Mercury fillings during pregnancy may not lead to low birth weight
3. Fish Consumption Results In Higher Mercury Levels
4. Rise in Mercury Levels in Supermarket Fish
5. Mercury Exposure Does Not Affect Intellectual Development
6. Link between Mercury based Vaccines and Autism Discredited
7. Dangers Of Mercury
8. Mercury-Based Vaccine Ban Temporarily Suspended
9. Ex-workers Ask HLL to Accept Liability for Mercury Deaths
10. Mercury can Kill
11. Mercury Levels In Canned Tuna Exceed Guidelines
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/22/2017)... ... February 22, 2017 , ... THR ... “NANOCALM 300” Microemulsified Hemp Extract. This premier nanoemulsified CBD product utilizes Quicksilver ... the bloodstream. Far outpacing the absorption speed of all other products, ...
(Date:2/22/2017)... ... February 22, 2017 , ... Becker’s Spine Review, the leading ... Michigan neurosurgeon Jay Jagannathan, M.D., as a “Spine Surgeon to Know.” http://www.beckersspine.com/spine-leaders/item/35348- ... in Michigan performing minimally invasive back surgery that often results in less post-operative ...
(Date:2/22/2017)... ... February 22, 2017 , ... The SeniorCare Investor will ... Forecast —on Thursday, February 23, 2017, at 1:00 PM ET. A recording of the ... of the Interactive Webinar Series. , If you want to find out what really ...
(Date:2/22/2017)... ... , ... BrightStar Care Charleston , a home care and medical staffing ... (MUSC) Center on Aging’s Senior Expo on Thursday, March 23, 2017, at the ... resource in our community. We are thrilled to participate in this event because we ...
(Date:2/22/2017)... ... February 22, 2017 , ... Physicians ... African American/Black students who want to become physicians. PMF also provides a network ... physicians in the Oakland/San Francisco Northern California, Bay Area. PMF’s mission is to ...
Breaking Medicine News(10 mins):
(Date:2/22/2017)... Clean Holdings, Inc. (Nasdaq: UCTT), a leading developer ... the semiconductor capital equipment, flat panel, medical, energy ... for the fourth quarter and fiscal year ended ... year of extraordinary growth for UCT. Total revenue ... with continued focus on operational excellence resulted in ...
(Date:2/22/2017)... YORK , Feb. 22, 2017 Summary ... cord partnering deals and agreements entered into by the ... http://www.reportlinker.com/p03605680-summary/view-report.html Description The Global Spinal Cord ... and access to partnering deals and agreements entered into ... Trends in partnering deals - Top deals by ...
(Date:2/22/2017)... 2017 Summary Provides understanding ... agreements entered into by the worlds leading healthcare ... Description The Global Atherosclerosis Partnering Terms ... access to partnering deals and agreements entered into ... - Trends in partnering deals - Top ...
Breaking Medicine Technology: