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:10/15/2014)... , Oct. 15, 2014 Sandata Technologies, ... home and community-based care, today announced it released ... Sandata,s Santrax® Electronic Visit Verification™ Solution (EVV™)  for ... a home health company founded in 1996 and ... . The study details the ...
(Date:10/15/2014)... ,Models of Life, is a non-traditional biophysics textbook and ... book is a journey of discovery into biological systems ... and biological regulation. It is about how our genes ... between the billions of cells in an organism. It ... between principles, which can be found on both large ...
(Date:10/15/2014)... virus is spreading rapidly and to an unexpected extent. ... the past and the virus shows a new disease ... before. For this reason, the German National Academy of ... and Engineering, and the Union of the German Academies ... the Ebola epidemic today. , In the statement the ...
Breaking Biology News(10 mins):Sandata Announces Case Study with Quality Care Services, Inc. 2New book about life as seen from physics 2Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5
... Body cells detect signals that control their behavior through ... and disorders can result when these cilia do not work ... the journal Nature Cell Biology provides new insights ... discovery, but with implications for understanding disease," said Jonathan Scholey, ...
... that compete with one another for access to limited resources. ... positive, facultative interactions? The authors of a new paper ... that it may take the form of root grafting. ... 150 species of plants around the world. However, while ...
... field of invasion biology faces a new challenge as ... bias against non-native species" in the journal Nature ... scientists say that non-native species could just as easily ... humans. The authors of the Nature comments section ...
Cached Biology News:How cells' sensing hairs are made 2Is root grafting a positive, cooperative behavior in trees? 2Is root grafting a positive, cooperative behavior in trees? 3Ecology biased against non-native species? 2
(Date:10/18/2014)... The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market ... with analysis and forecast of revenue. This market was ... to reach $380.0 million by 2018, at a CAGR ... the TOC of the Asia-Pacific LCoS display market report, ... This also provides a glimpse of the segmentation of ...
(Date:10/18/2014)... to a new market research report “Hydraulic Fracturing Market ... Forecasts up till 2017”, hydraulic fracturing market will grow ... expected to increase from $40 billion in 2012 to ... same period. North America is expected to lead the ... horse power supplied by the year 2011. , Make ...
(Date:10/17/2014)... engineering professors have received a $451,781 Air Force Office ... at the micro- and nano-scale level that will provide ... professor of Mechanical and Aerospace Engineering, said the new ... than taking X-rays of an aircraft,s wing., "We,ll be ... when we look at it on this scale," Huang ...
(Date:10/17/2014)... DE (PRWEB) October 17, 2014 ... among top employers, as published in today’s print ... Science Careers’ annual Top Employers Survey polled employees ... determine the 20 best employers. Rankings were ... were asked to rate their companies on 23 ...
Breaking Biology Technology:The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 2Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 4UT Arlington project to detect possible damages in aircraft parts early in process 2DuPont Named Top Employer by Science Magazine 2DuPont Named Top Employer by Science Magazine 3
... Meeting of the American ... Association for Cancer Research (AACR) -, TORONTO, ... AMEX: LRP), a biopharmaceutical company specializing,in the research, development ... of cancer, today announced,presentations of further preclinical data from ...
... and its US,affiliate EMD Serono, Inc., both part ... expansion of EMD Serono,s US presence with an,anticipated ... northwest,of Boston, Massachusetts. The company anticipates that this ... Massachusetts., The investment will support the construction ...
... Technology (NIST), in collaboration with the National Aeronautics ... for making essential measurements on samples of single-walled ... current best practices for characterizing one of the ... generation of nanoscale materials. , The nanotubes are ...
Cached Biology Technology:Lorus Therapeutics presents new findings for the anticancer drugs LOR-253 and LOR-2040 2Lorus Therapeutics presents new findings for the anticancer drugs LOR-253 and LOR-2040 3Lorus Therapeutics presents new findings for the anticancer drugs LOR-253 and LOR-2040 4EMD Serono Announces Planned Investment of $50 Million in Research Center in Massachusetts 2EMD Serono Announces Planned Investment of $50 Million in Research Center in Massachusetts 3EMD Serono Announces Planned Investment of $50 Million in Research Center in Massachusetts 4Carbon nanotube measurements: latest in NIST 'how-to' series 2
Request Info...
... Signet offers the most comprehensive, ... requirements. We have incorporated unprecedented quality ... capabilities. This includes proven detection chemistries ... to the TechMate protocol. It also ...
Human Cell Line Slides...
... Each Signet Level 2 Detection System ... avidin-biotin chemical bonding principle and Signets ... provide sensitivity, specificity and reliablility. Signet ... in both manual and automated protocols. ...
Biology Products: