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:4/17/2014)... is available in German . ... the protection money demanded of him, he can expect his ... however, as fear of the consequences is enough to make ... parasitic birds, which lay their eggs in other birds, nests. ... brood parasites take their revenge by destroying the entire nest. ...
(Date:4/17/2014)... such as heart disease, epilepsy and pain, making them ... is still much scientists do not know about the ... into the structure of sodium channels and, specifically, one ... responsible for ,fine-tuning, the activity of the channel. The ... the Journal of Biological Chemistry . , Nerves ...
(Date:4/17/2014)... is the process whereby the genetic information of ... as proteins, which have numerous different functions in ... important intermediary during gene expression, by relating the ... involved in manufacturing proteins. , By examining ... present in an organism at a given time, ...
Breaking Biology News(10 mins):Fear of the cuckoo mafia 2Fear of the cuckoo mafia 3Structure of sodium channels different than previously believed 2Rapid and accurate mRNA detection in plant tissues 2
... businesses in Munich, Germany and Ann Arbor, Michigan released ... the National Institute on Aging, National Institutes of Health, ... (ES) cells. , In their work they first identified ... qRT-PCR methods. Then they employed extensive DNA promoter analysis ...
... for species exploration and classification, has been largely ignored ... International Institute for Species Exploration at Arizona State University ... spark a renaissance in taxonomy through a transdisciplinary fusion ... an entomologist and ASU vice president and dean of ...
... plants from a sudden freeze that occurred across the Eastern ... made worse because it had been preceded by two weeks ... March 2008 issue of BioScience. The authors of the report, ... Laboratory and collaborators at NASA, the University of Missouri, and ...
Cached Biology News:Species explorers ask: What's on Your planet? 2Species explorers ask: What's on Your planet? 3Will global warming increase plant frost damage? 2
(Date:1/14/2014)... York, NY (PRWEB) January 14, 2014 ... of Alliqua, Inc. (OTCQB: ALQA). Alliqua is an emerging ... to serve the wound care market. , Free report ... was restructured with a seasoned management team and Board, ...
(Date:1/14/2014)... and BETHESDA, Md. , Jan. 14, ... with two institutes from the National Institutes of Health ... bringing safer, more effective treatments to patients on a ... for Advancing Translational Sciences (NCATS) and the National Eye ...
(Date:1/14/2014)... Canada (PRWEB) January 14, 2014 In ... its motives and methods in product development and promotion ... the industry. This mistrust, fueled by concerns about the ... fed by reports of spectacular fines to the world’s ...
(Date:1/14/2014)... Global Record Systems, LLC, (GRS), ... solutions for patients, physicians, the biopharmaceutical industry, regulators, ... the signing of a three-year Research Collaboration Agreement ... (FDA). This initiative is designed to generate ...
Breaking Biology Technology:EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
... Pharmaceuticals, Inc. (Nasdaq: QCOR ) today announced that ... S&P SmallCap 600 Index effective after the close of the ... "Our inclusion in the S&P SmallCap 600 Index reflects our ... within the investment community as we continue our efforts to ...
... Barbara, Calif.) An important milestone toward the realization of ... level of the quantum control of light, were accomplished by ... China and Japan. The study, published in the Feb. ... involved scientists from Zhejiang University, China, and NEC Corporation, Japan. ...
... 15, 2011 Gen-Probe Incorporated (Nasdaq: GPRO ) ... year 2010, highlighted by record non-GAAP earnings per share (EPS) ... prior year period. "In the fourth quarter of ... high in earnings per share despite macroeconomic headwinds and unusually ...
Cached Biology Technology:Questcor Pharmaceuticals to Be Added to S&P SmallCap 600 Index 2International team of scientists says it's high 'NOON' for microwave photons 2Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 2Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 3Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 4Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 5Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 6Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 7Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 8Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 9Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 10Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 11Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 12Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 13Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 14Gen-Probe Reports Financial Results for the Fourth Quarter and Full Year 2010 15