Navigation Links
Stanford scientists find new solutions for the arsenic-poisoning crisis in Asia
Date:3/25/2009

Every day, more than 140 million people in southern Asia drink groundwater contaminated with arsenic. Thousands of people in Bangladesh, Cambodia, India, Myanmar and Vietnam die of cancer each year from chronic exposure to arsenic, according to the World Health Organization. Some health experts call it the biggest mass poisoning in history.

More than 15 years ago, scientists pinpointed the source of the contamination in the Himalaya Mountains, where sediments containing naturally occurring arsenic were carried downstream to heavily populated river basins below.

But one mystery remained: Instead of remaining chemically trapped in the river sediments, arsenic was somehow working its way into the groundwater more than 100 feet below the surface. Solving that mystery could have significant implications for policymakers trying to reverse the mass poisoning, said Stanford University soil scientist Scott Fendorf.

"How does the arsenic go from being in the sediment loads, in solids, into the drinking water?" said Fendorf, a professor of environmental Earth system science and a senior fellow at Stanford's Woods Institute for the Environment.

To find out, he launched a field study in Asia in 2004 with two Stanford colleagues: Chris Francis, an assistant professor of geological and environmental sciences, and Karen Seto, now at Yale University. The initial study was funded with a two-year Woods Institute Environmental Venture Projects grant. Five years later, the research team appears to have solved the arsenic mystery and is working with policymakers and government officials to prevent the health crisis from escalating.

"The real thing is, how do we help the people who are there?" Fendorf said. "But first, we have to understand the coupling of hydrology-the way the water is flowing-with the chemistry and biology."

Finding a study site

Arsenic-laden rocks in the Himalayas feed into four major river s
'/>"/>

Contact: Mark Shwartz
mshwartz@stanford.edu
650-723-9296
Stanford University
Source:Eurekalert

Page: 1 2 3 4 5 6

Related biology news :

1. Americans remain pessimistic about the environment, Stanford-AP survey finds
2. Stanford/Packard researchers find disease genes hidden in discarded data
3. Stanford researchers say climate change will significantly increase impending bird extinctions
4. Stanfords nanowire battery holds 10 times the charge of existing ones
5. Stanford researchers publish review of US medical device regulation
6. Stanford researchers make first direct observation of 3-D molecule folding in real time
7. Stanford researchers say living corals thousands of years old hold clues to past climate changes
8. Group led by Stanford physicist says theres an urgent need for nuclear detectives
9. Stanford researchers developing 3-D camera with 12,616 lenses
10. Clues to ancestral origin of placenta emerge in Stanford study
11. Inflammation triggers cell fusions that could protect neurons, Stanford research shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... MD FASEB MARC (Maximizing Access to Research ... for the American College of Sports Medicine,s Conference ... 2014 in Miami, Florida. These awards are ... doctorates and scientists from underrepresented groups into the ... encourage the participation of young scientists at the ...
(Date:8/28/2014)... PA, August 28, 2014 Dyslexia, the most ... is a neurological reading disability that occurs when ... language don,t function normally. , The use of ... brain activity is disrupted in dyslexia. However, most ... number of brain regions, leaving a gap in ...
(Date:8/28/2014)... and mould in homes could pose a significant health risk ... in the Journal of Allergy and Clinical Immunology . ... eight different countries, the research has found that the presence ... in asthma sufferers, as well as increasing the likelihood of ... a team at the University of Exeter Medical School and ...
Breaking Biology News(10 mins):Dyslexic readers have disrupted network connections in the brain 2Indoor mold poses health risk to asthma sufferers 2
... HOUSTON -- (Aug. 16, 2010) -- A new ... and other human activity has completely obscured the natural ... "The natural factors that influence carbon dioxide cycling ... the radiocarbon signature of the river to reflect those ...
... of some of the most repugnant smells on earth, but ... has a sense of smell of its own. A team ... first time that bacteria have a molecular "nose" that is ... today in Biotechnology Journal , their study shows how ...
... infrared laser can make a heart beat faster. Scientists ... pulsed light can pace contractions in an avian embryonic heart, ... pacing of the embryonic heart," will be published in the ... 15, 2010. According to the scientists, this non-invasive device ...
Cached Biology News:A river flipped: Humans trump nature on Texas river 2A river flipped: Humans trump nature on Texas river 3Bacteria breakthrough is heaven scent 2A heart beats to a different drummer 2
(Date:8/29/2014)... (PRWEB) August 29, 2014 A major ... the biotech start-up dense realm of Boston-Cambridge, is gaining ... able investors. James Sherley, the Director of Boston’s Adult ... the local and national visibility of his company an ... 2013. , In addition to a social media marketing ...
(Date:8/28/2014)... 28, 2014 “This kit has an improved ... from 0 to 150 ppb,” said Mark Tess, PhD, Mycotoxin ... benefit to plant owners and USDA-GIPSA inspection agencies that have ... Testing can take place in a matter of minutes with ... plant test the feed and grain before accepting it, but ...
(Date:8/28/2014)... 2014  Next month, executives from clinical trial marketing firm ... beginning with Patient-Centered Clinical Trials 2014 , to be ... , September 4-5. Patient recruitment experts Bonnie A. ... will share insights on the benefits of employing an ... – from media to mobile apps – can be used ...
(Date:8/28/2014)... 2014 Scientists, researchers, and technologists will ... Laser Damage 2014 symposium. Marking its 46th year, ... will run 14-17 September. The event is sponsored by ... . , The premier conference for basic and applied ... optical materials will engage researchers and engineers from numerous ...
Breaking Biology Technology:The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 2The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 3The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 4BBK Worldwide Leads Sessions at Key September Events 2Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 2Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 3
... July 15 Amsterdam,Molecular Therapeutics (Euronext: AMT), a ... announced the start of a collaboration with St. ... the development,of a gene therapy treatment for Hemophilia ... commercial rights to the final product. The,combination of ...
... A report published in the July 8 issue of ... Sciences ( PNAS ) is the first to ... of tiny nanoclusters of metallic gold. The study, which ... the work of researchers at four universities on two ...
... HealthSonix, Inc.,(Pink Sheets: HSXI)(FWB:H7S) today announced that ... purchased two wholly owned,subsidiaries of HealthSonix, Inc. ... "Selling the two operating companies to Innovative ... the companies to,resume full operations and get ...
Cached Biology Technology:AMT Starts Collaboration With St. Jude Children's Research Hospital on Gene Therapy for Hemophilia B. Company Accesses Exclusive Commercial Rights to Final Therapy 2AMT Starts Collaboration With St. Jude Children's Research Hospital on Gene Therapy for Hemophilia B. Company Accesses Exclusive Commercial Rights to Final Therapy 3AMT Starts Collaboration With St. Jude Children's Research Hospital on Gene Therapy for Hemophilia B. Company Accesses Exclusive Commercial Rights to Final Therapy 4Study reveals principles behind stability and electronic properties of gold nanoclusters 2Study reveals principles behind stability and electronic properties of gold nanoclusters 3Study reveals principles behind stability and electronic properties of gold nanoclusters 4HealthSonix Sells Operating Subsidiaries to Innovative Health Sciences 2
... BODIPY FL ATP-Gamma-S binds to ... nucleotide the BODIPY FL fluorophore was ... In addition to its potential use ... ATP-Gamma-S thioether is an important new ...
... world of discovery races ever faster, you need ... fast track. So our constant focus is on ... research. Thats why our Biomek 3000 Laboratory Automation ... advanced as it is flexible. By integrating all ...
... Pro is the industry standard microarray image ... of imaging and analysis tools, visualizations, automation ... Pro is included with every GenePix scanner, ... third-party scanners and all types of arrays. ...
... 60 rabbit tissue samples arrayed on Superfrost Plus ... and 1 hematoxylin and eosin (H&E) stained slide ... tissues from 4 rabbit organisms, for a total ... sample (or core) is 1.5 mm in diameter. ...
Biology Products: