HOME >> BIOLOGY >> NEWS
Tree rings show elevated tungsten coincides with Nevada leukemia cluster

e causes for the leukemia cases in Fallon (http://www.atsdr.cdc.gov/HAC/PHA/fallonair/finalair.pdf), tungsten was mentioned as "a contaminant of concern because it was elevated in urine samples" collected from Fallon-area residents as part of the investigation.

Previous research by Sheppard and his colleagues found elevated levels of tungsten and cobalt in airborne and surface dust and in lichens in Fallon.

The researchers also analyzed airborne tungsten particles from Fallon to determine their source. The analysis found that the particles "were anthropogenic in origin, not natural." The particles were relatively uniform in size, ranging from about 1.0 to 5.9 micrometers in diameter.

Particles less than 10 micrometers in diameter are small enough to be inhaled and have potential to cause health problems, according to the U.S. Environmental Protection Agency. (http://www.epa.gov/air/particlepollution/)

The research team's study on the characteristics of the tungsten particles has been accepted for publication by the journal Microscopy and Microanalysis.

Fallon is a community of about 8,000 located in Churchill County about 60 miles east of Reno, Nev. Tungsten is naturally present in soils and rocks in Churchill County and other parts of Nevada.

The metal was mined in the region around Fallon at various sites, including Churchill Butte. Tungsten, tungsten steels and tungsten carbide are used in hardened tools and tools exposed to high temperatures, such as drill bits and the filaments of incandescent light bulbs.

The increase in Fallon's childhood leukemia began around 1997. Heavy metals had been suggested as one possible environmental cause of cancers, so Ridenour and Witten began investigating how to conduct research on Fallon's environment.

Witten approac
'"/>

Contact: Mari N. Jensen
mnjensen@email.arizona.edu
520-626-9635
University of Arizona
30-Apr-2007


Page: 1 2 3 4

Related biology news :

1. MIT study: Maturity brings richer memories
2. Variant CJD -- Prion amplification breakthrough brings new insights and hopes for a blood test
3. Extracting eggs from pre-pubertal cancer patients brings hope for future fertility
4. Homing pigeons get their bearings from their beaks
5. Gold nanorods assemble themselves into rings
6. Dilbert of academia brings humor to talk at UH
7. Disorderly protein brings order to cell division
8. From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea
9. $1 million Myers Fellowship brings US research techniques to Melbourne
10. Flying in tune: Buzz brings mosquito pairs together
11. Watching rocks grow: Theory explains landscape of geothermal springs

Post Your Comments:
(Date:11/6/2014)... metastasis, yet progress in preventing and treating migratory ... particularly challenging to design drugs that work against ... biology at Harvard Medical School. , "Unfortunately, ... metastasized." , Gujral and colleagues have now identified ... understand how metastasis begins. Their findings may also ...
(Date:11/6/2014)... 6, 2014 - Insilico Medicine, Inc, a Baltimore-based ... age related diseases announced a research collaboration with ... Champions Oncology, Inc (OTC: CSBR). , "There are ... medicine, but Champions Oncology,s TumorGraft technology is unique ... chemotherapy regimen experimentally generating vast amounts of valuable ...
(Date:11/5/2014)... career to understanding the Earth,s climate and communicating ... deputy director and regional climatologist for the Western ... Redmond has more than three decades of experience ... data to the general public. , At its ... December 15-19, 2014 the American Geophysical Union (AGU) ...
Breaking Biology News(10 mins):Migration negation 2Migration negation 3Insilico Medicine, Inc announces research collaboration with Champions Oncology, Inc 2Nevada climatologist to be honored at AGU Fall Meeting for lifetime of public outreach 2
(Date:11/24/2014)... N.J. , Nov. 24, 2014  IGI Laboratories, ... based specialty generic pharmaceutical company, today announced ... (ANDA) to the U.S. Food and Drug Administration (FDA), ... in 2014 to seven, with eighteen submissions now pending ... , President and CEO of the Company, commented, "Our ...
(Date:11/24/2014)... Belgium , Nov. 24, 2014 VolitionRx ... developing diagnostic tests for cancer and other conditions, today announced ... presented at the Science for Business BioWin Day 2014, being ... . The data come from VolitionRx,s lung cancer pilot study, ... of the Centre Hospitalier Universitaire (CHU) de Liege in ...
(Date:11/24/2014)... Washington, USA (PRWEB) November 23, 2014 One ... dynamic field of optics and photonics is now available to ... or very low cost. SPIE, the international society for ... access to the complete SPIE Digital Library available ... subsidized price. , “Light-based technologies are integral to all areas ...
(Date:11/24/2014)... Massachusetts (PRWEB) November 24, 2014 ... Panels ” from METTLER TOLEDO demonstrates how to ... , Power analytics and sample panel design can ... cycle chemistry and protect against corrosion and deposition. ... up a significant amount of panel space. Additionally, ...
Breaking Biology Technology:IGI Laboratories, Inc. Announces ANDA Submission 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 3VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 4VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 5VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 6SPIE Digital Library Now Available to High Schools, Two-Year Colleges at No or Low Cost 2New Video Shows How to Simplify Cycle Chemistry Sample Panels to Save Time and Costs 2
Cached News: