Navigation Links
Oldest record of human-caused lead pollution detected
Date:6/11/2013

PITTSBURGHHumans began contributing to environmental lead pollution as early as 8,000 years ago, according to a University of Pittsburgh research report.

The Pitt research team detected the oldest-discovered remains of human-derived lead pollution in the world in the northernmost region of Michigan, suggesting metal pollution from mining and other human activities appeared far earlier in North America than in Europe, Asia, and South America. Their findings are highlighted on the cover of the latest issue of Environmental Science & Technology.

"Humanity's environmental legacy spans thousands of years, back to times traditionally associated with hunter-gatherers. Our records indicate that the influence of early Native Americans on the environment can be detected using lake sediments," said David Pompeani, lead author of the research paper and a PhD candidate in Pitt's Department of Geology and Planetary Science. "These findings have important implications for interpreting both the archeological record and environmental history of the upper Great Lakes."

The University of Pittsburgh research teamwhich included, from Pitt's Department of Geology and Planetary Science, Mark Abbott, associate professor of paleoclimatology, and Daniel Bain, assistant professor of catchment science, along with Pitt alumnus Byron A. Steinman (A&S '11G)examined Michigan's Keweenaw Peninsula because it is the largest source of pure native copper in North America. Early surveys of the region in the 1800s identified prehistoric human mining activity in the form of such tools as hammerstones, ladders, and pit mines.

The team from the Department of Geology and Planetary Science investigated the timing, location, and magnitude of ancient copper mining pollution. Sediments were collected in June 2010 from three lakes located near ancient mine pits. They analyzed the concentration of lead, titanium, magnesium, iron, and organic matter in the collected
'/>"/>

Contact: B. Rose Huber
rhuber@pitt.edu
412-624-4356
University of Pittsburgh
Source:Eurekalert

Page: 1 2

Related biology news :

1. New species of ancient rodents hint at what could be worlds oldest grasslands
2. Scientists find oldest occurrence of arthropods preserved in amber
3. Record-breaking grant: New research project to investigate the causes of mental disorders
4. 17th century Dutch explorers help the Atlas reach a major milestone -- 30 million records
5. BioLife Solutions Announces 7th Consecutive Quarter of Record Revenue
6. CDS Monarch Deploys DigitalPersona Strong Authentication Solutions for Secure Access to Electronic Medical Records
7. MIT-designed cooler preserves tuberculosis drugs, records doses
8. First ever videos of snow leopard mother and cubs in dens recorded in Mongolia
9. UF scientists find state record 87 eggs in largest python from Everglades
10. Chikyu sets a new world drilling-depth record of scientific ocean drilling
11. Sea surface temperatures reach record highs on Northeast continental shelf
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... a novel method to help kidney stone sufferers ... treatment possible., Kidney stones represent a major medical ... left untreated, apart from being particularly painful, they ... In many patients treated successfully, stone recurrence is ... approach to diagnosis and treatment needs to be ...
(Date:4/17/2014)... the Cell Press journal Current Biology on ... novel sex lives. The Brazilian insects, which represent four ... , are the first example of an animal with ... identified in several different animals, Neotrogla is ... also reversed," says Kazunori Yoshizawa from Hokkaido University in ...
(Date:4/17/2014)... Branch at Galveston are the first to recommend ... cancer should begin colorectal cancer screening earlier than ... a high incidence of secondary colorectal cancers among ... recommendations that the younger women in this group ... their initial cervical cancer diagnosis instead of waiting ...
Breaking Biology News(10 mins):In sex-reversed cave insects, females have the penises 2Radiation therapy for cervical cancer increases risk for colorectal cancer 2
... University of Geneva have discovered a genetic mechanism that defines ... only a secondary role. The research published in Cell ... found in a DNA sequence that was thought, incorrectly, to ... when combined with one another, modulate the activity of the ...
... Urban legend warns shoveling snow causes heart attacks, and the ... with a family history of premature cardiovascular disease. However, until ... Two of the most important cardiology associations in the ... risk physical activity, but all the citation references indicate that ...
... end rot on tomatoes and cucumbers, bitter-pit in apples ... only compromises the flavor but also causes significant harvest ... be traced back to insufficient calcium uptake or faulty ... occur even if the soil provides sufficient calcium. A ...
Cached Biology News:Finger (mal)formation reveals surprise function of desert DNA 2
(Date:1/15/2014)... , Jan. 15, 2014 ­ RedBrick Health ... behavior change technology, today announces that EmblemHealth , ... and wellness company, is now providing the RedBrick Compass ... coaching program, to all of its members. EmblemHealth is ...
(Date:1/15/2014)... Reston, VA (PRWEB) January 15, 2014 ... education have continued their sponsorship of an annual competition ... interest in, and access to, innovative STEM study. The ... , TEAMS: Tests of Engineering Aptitude, Mathematics, and ...
(Date:1/15/2014)... 2014 Freeslate, Inc ., the ... that Lupin Limited, one of India’s top five pharmaceutical ... PharmD System for high throughput solid form screening. ... on a wide range of quality, affordable generic and ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Carahsoft and ... Thursday, January 23, 2014 at 2pm EST (11am PST), ... The topic focuses on how technology can turn raw, ... decisions for government agencies. The online webinar will last ...
Breaking Biology Technology:EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5Lupin 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 3Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2
... of,the 2007 Nobel Prize in Physiology or Medicine ... Americans for Medical,Progress congratulates Mario R. Capecchi, Martin ... by the Karolinska Institute for their,animal-based research that ... treatments and cures for countless serious ailments., ...
... Company to Present Unique Business Model, SAN ... health,and wellness company and recent consecutive year award ... genetic research,announces today that it has been selected ... investor meeting, October 17, 2007 in San,Francisco, CA. ...
... 9 Boston Scientific,Corporation (NYSE: BSX ) ... cardioverter defibrillator (ICD). This approval,represents the first Boston ... death (SCD). The CONFIENT ICD, with an ... unnecessary right ventricular pacing. This product also,contains wireless ...
Cached Biology Technology:Nobel Award in Medicine Holds Strong Messsage for Animal Activists 2Salugen to Present at Nutrition Capital Network's First In-Person Investor Meeting 2Boston Scientific Announces European Approval of Next-Generation Implantable Defibrillator 2Boston Scientific Announces European Approval of Next-Generation Implantable Defibrillator 3
Monocarboxylate (lactate) transporter 2...
Chicken Anti-Human Stomatin-like 2 (STOML2 Polyclonal AntibodyNew Applications: ELISA, Western Blot...
MagSi monodispers, magnetic silica particles with modified surface for SO3 coupling chemistry....
Anti-Chicken IgY, (IgG) F(ab')2 Fragment Specific....
Biology Products: