Navigation Links
Greenland ice core reveals history of pollution in the Arctic
Date:8/19/2008

New research, reported this week in the online early edition of the Proceedings of the National Academy of Sciences, finds that coal burning, primarily in North America and Europe, contaminated the Arctic and potentially affected human health and ecosystems in and around Earth's polar regions.

The study, titled "Coal Burning Leaves Toxic Heavy Metal Legacy in the Arctic," was conducted by the Desert Research Institute (DRI), Reno, Nev. and partially funded by the National Science Foundation.

Detailed measurements from a Greenland ice core showed pollutants from burning coal--the toxic heavy metals cadmium, thallium and lead--were much higher than expected. The catch, however, was the pollutants weren't higher at the times when researchers expected peaks.

"Conventional wisdom held that toxic heavy metals were higher in the 1960s and '70s, the peak of industrial activity in Europe and North America and certainly before implementation of Clean Air Act controls in the early 1970s," said Joe McConnell, lead researcher and director of DRI's Ultra-Trace Chemistry Laboratory.

"But it turns out pollution in southern Greenland was higher 100 years ago when North American and European economies ran on coal, before the advent of cleaner, more efficient coal burning technologies and the switch to oil and gas-based economies," McConnell said.

In fact, the research showed pollutants were two to five times higher at the beginning of the previous century than today. Pollution levels in the early 1900s also represented a 10-fold increase from preindustrial levels.

Continuous, monthly and annually averaged pollution records taken from the Greenland ice core dating from 1772-2003 produced the results. And although data showed heavy-metal pollution in the North Atlantic sector of the Arctic is substantially lower today than a century ago, McConnell and his research partner, Ross Edwards, an associate r
'/>"/>

Contact: Bobbie Mixon
bmixon@nsf.gov
703-292-8485
National Science Foundation
Source:Eurekalert  

Page: 1 2

Related biology news :

1. A survivor in Greenland: A novel bacterial species is found trapped in 120,000-year-old ice
2. Study reveals surprising details of the evolution of protein translation
3. New research reveals why chili peppers are hot
4. Fossil and molecular evidence reveals the history of major marine biodiversity hotspots
5. ID Analytics Study Reveals Employees Criminal Misuse of Stolen Identities
6. Study reveals air pollution is causing widespread and serious impacts to ecosystems
7. Deep sequencing study reveals new insights into human transcriptome
8. Stroke study reveals key target for improving treatment and suggests that Gleevec may help
9. From Canada to the Caribbean: Tree leaves control their own temperature, Penn study reveals
10. New study reveals large scale conservation essential
11. Metagenomics of skin reveals insights into the human microbiome
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Greenland ice core reveals history of pollution in the Arctic
(Date:7/21/2015)... July 21, 2015  NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce ... announces that it has filed provisional patent 62/192218 ... This invention highlights next generation ... an account, but also the user using unique ...
(Date:7/20/2015)... -- Acuity Market Intelligence,s latest research "The Global Biometrics ... Privacy" forecasts that between 2014 and 2020 nearly ... to smart mobile devices by 2.2 billion mobile ... to generate more than $67.9 billion in total ...    "Biometrics is at the center ...
(Date:7/13/2015)... , Jul. 13, 2015 NXT-ID, Inc. (NASDAQ: ... biometric authentication company focused on the growing mobile ... provisional patent 62/188684 for BEHAVIORAL-DIRECTED AUTHENTIATION ... new convenient and secure method to make payments.  ... payment methods, introduced with its groundbreaking voice-direct payment ...
Breaking Biology News(10 mins):NXT-ID Patents Personalized Tokenized Payments for Next Generation Secure Payment Technology 2NXT-ID Patents Personalized Tokenized Payments for Next Generation Secure Payment Technology 3NXT-ID Patents Personalized Tokenized Payments for Next Generation Secure Payment Technology 4Biometrics on Smart Mobile Devices to Redefine Digital Identity with 12.9 Billion Biometric App Downloads between 2014 and 2020 2NXT-ID Patents Behavior-Directed Payments 2NXT-ID Patents Behavior-Directed Payments 3NXT-ID Patents Behavior-Directed Payments 4
... Baltimore, MD The human genome shares several peculiarities with the ... Our genetic blueprint contains numerous entities known as transposons, or ... to place on the chromosomes within a cell. ... transposon elements and the decaying remains of former transposons that ...
... meeting of the American Fisheries Society will take place in ... conference is "New Frontiers in Fisheries Management and Ecology: Leading ... http://afs2011.org/ All talks will be at the ... Eat but don,t get eaten: after restoration, young salmon better ...
... discovery by the University of Colorado Boulder and the ... "power plants" within cells known as mitochondria has implications ... and conditions due to mitochondrial defects. Led by ... collaboration with the UC-Davis team led by Professor Jodi ...
Cached Biology News:A 'jumping gene's' preferred targets may influence genome evolution 2A 'jumping gene's' preferred targets may influence genome evolution 3USGS research frontiers on fish at the American Fisheries Society Conference 2USGS research frontiers on fish at the American Fisheries Society Conference 3USGS research frontiers on fish at the American Fisheries Society Conference 4USGS research frontiers on fish at the American Fisheries Society Conference 5USGS research frontiers on fish at the American Fisheries Society Conference 6USGS research frontiers on fish at the American Fisheries Society Conference 7New cellular surprise may help scientists better understand human mitochondrial diseases 2
(Date:7/31/2015)... ... July 31, 2015 , ... R-Biopharm is proud ... partially hydrolyzed gluten in foods, has been accepted by AOAC International as Official ... Gluten in Fermented Cereal-Based Products by R5 Competitive ELISA,” based on a specific ...
(Date:7/30/2015)... CAMBRIDGE, Mass. , July 30, 2015 /PRNewswire/ ... software solutions for the interpretation and analysis of ... Matthew Fischer has joined the company ... Photo - http://photos.prnewswire.com/prnh/20150730/250931 ... astounding capabilities to integrate, interpret, analyze and explore ...
(Date:7/30/2015)... , July 30, 2015 ... by Product (Software, Molecular Modeling, PB/PK, PKPD, Trial Design, ... & Development, Preclinical, Clinical Trial), by End Users - ... Market is expected to reach USD 2,107.99 million by ... CAGR of 15.29%. Browse more than ...
(Date:7/30/2015)... 2015   Senomyx , Inc. (NASDAQ: SNMX ... to discover, develop, and commercialize novel flavor ingredients for ... financial results for the second quarter 2015. ... remain on track to achieve our commercial and financial ... of the Company. "Since our last quarterly earnings report, ...
Breaking Biology Technology:RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2GenoSpace Introduces Matthew Fischer as Vice President of Sales and Marketing 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 2SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 3SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 4SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 5SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 6SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 7SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 8SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 9
... assay effectively identifies melanoma, LA JOLLA, Calif., ... diagnostics for the early detection of,melanoma and other ... Cancer Research on its non-invasive assay that distinguishes ... Genomic Assay for,the Detection of Melanoma in Suspicious ...
... CEDAR KNOLLS, N.J., April 15 Emisphere,Technologies, Inc. ... will host its,Annual Stockholders Meeting on Thursday, May ... Two Whippany Road, Morristown, New Jersey. The,meeting will ... TECHNOLOGIES, INC., Emisphere Technologies, Inc. is a ...
... -ARIUS report new data and program updates on cancer stem cell ... ... April 15 /PRNewswire-FirstCall/ - ARIUS Research Inc., (TSX:,ARI), a biotechnology company ... it will be presenting new,findings and program updates related to its ...
Cached Biology Technology:DermTech Study on Melanoma Molecular Diagnostic to Be Presented at AACR 2Emisphere Technologies To Hold Annual Stockholders Meeting on May 8, 2008 2ARIUS presents new findings for anti-cancer antibody programs at AACR 2ARIUS presents new findings for anti-cancer antibody programs at AACR 3ARIUS presents new findings for anti-cancer antibody programs at AACR 4ARIUS presents new findings for anti-cancer antibody programs at AACR 5
Request Info...
... CultureWell cell culture systems provide ... cultured cells for staining and ... silicone gaskets preassembled with standard ... plates. The entire system is ...
... The Captivate magnetic separator ... be used in conjunction with ... C-21474, C-21476) or other magnetic ... most 96-well microplates. Cell Biology ...
ANTI L-DOPA...
Biology Products: