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:9/19/2014)... resource unveiled today by researchers from several Harvard ... provides both experienced and aspiring researchers with the ... operate robots made from soft, flexible materials. , ... cutters, and other advances in manufacturing technology, soft ... Using principles drawn from conventional rigid robot design, ...
(Date:9/19/2014)... of Oklahoma biology professor will study multifunctional and ... movements with a National Science Foundation grant in ... , Ari Berkowitz, professor in the Department of ... focus on the differences between the multifunctional and ... neurotransmitters they use and what connections they make. ...
(Date:9/19/2014)... Imagine you are a species which over thousands of years ... exposed to a substance that makes the cold dangerous for ... Enchytraeus albidus , and the cold provoking substance, called ... cosmetics. , Nonylphenol is suspected of being a endocrine disruptor, ... It inhibits the worm,s ability to protect the cells in ...
Breaking Biology News(10 mins):Soft robotics 'toolkit' features everything a robot-maker needs 2Environmental pollutants make worms susceptible to cold 2Environmental pollutants make worms susceptible to cold 3
... This press release is available in ... scientists working with the University of Illinois at Urbana-Champaign ... soybean yields by an average 23 percent. Randy ... Research Service Soybean/Maize Germplasm, Pathology, and Genetics Research Unit ...
... DC, Aug. 22The Martin Luther King, Jr. Health Equity ... Multicultural and Minority Medicine (IAMMM), opens today as the ... opens to the public on the National Mall. Both ... focusing tightly on the health status of minorities and ...
... a five-year grant is considered a long-term grant, Alan R. Templeton, ... University in St. Louis, has managed to follow some of the ... Early in his career he studied parthenogenesis, or virgin birth, in ... Hawaii. "Drosophilia have fast generation times," he says, "but I ...
Cached Biology News:Breeding ozone-tolerant crops 2MLK, Jr. Health Equity Summit opens as memorial to Dr. King is unveiled in DC 2Restoration as science: case of the collared lizard 2Restoration as science: case of the collared lizard 3Restoration as science: case of the collared lizard 4Restoration as science: case of the collared lizard 5Restoration as science: case of the collared lizard 6Restoration as science: case of the collared lizard 7Restoration as science: case of the collared lizard 8Restoration as science: case of the collared lizard 9
(Date:9/22/2014)... Topical BioMedics, Inc., is celebrating 20 years of ... restoring hope an quality of life and contributing to ... of the innovative cellular biomedicines research that made Topricin® ... , The company was founded in 1994 in a ... of research, and Topricin inventor), Aurora Paradise (COO) and ...
(Date:9/22/2014)... -- Research and Markets has announced the ... Industry Report 2014" report to their offering. ... Report 2014 is a professional and in-depth study on ... with a focus on the Chinese situation. ... including definitions, classifications, applications and industry chain structure. The ...
(Date:9/22/2014)... (Nasdaq: NEOG ) announced today that net ... year, which ended Aug. 31, was $8,883,000 — a ... the first quarter of last year. Adjusted for a ... share in the current quarter were $0.24, compared to ... increased 15% to $67,599,000, from the previous year,s first ...
(Date:9/22/2014)... September 22, 2014 The US ... mixed note as the Dow Jones Industrial Average finished ... at 4,579.79, down 0.30%. The S&P 500 finished the ... six out of ten sectors finished on a positive ... the day at 751.48, up 0.10%, with the index ...
Breaking Biology Technology:Topical BioMedics (Topricin) Celebrates 20 Years of Providing Hope and Quality of Life...As Topricin Is Declared “The 21st Century Standard of Care for Pain Management” 2Topical BioMedics (Topricin) Celebrates 20 Years of Providing Hope and Quality of Life...As Topricin Is Declared “The 21st Century Standard of Care for Pain Management” 3Topical BioMedics (Topricin) Celebrates 20 Years of Providing Hope and Quality of Life...As Topricin Is Declared “The 21st Century Standard of Care for Pain Management” 4Topical BioMedics (Topricin) Celebrates 20 Years of Providing Hope and Quality of Life...As Topricin Is Declared “The 21st Century Standard of Care for Pain Management” 5Topical BioMedics (Topricin) Celebrates 20 Years of Providing Hope and Quality of Life...As Topricin Is Declared “The 21st Century Standard of Care for Pain Management” 6Global and Chinese Microcrystalline Cellulose Industry Report 2014 2Neogen reports 13% net income increase 2Neogen reports 13% net income increase 3Neogen reports 13% net income increase 4Neogen reports 13% net income increase 5Neogen reports 13% net income increase 6Neogen reports 13% net income increase 7Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 2Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 3Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 4Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 5
... following Webcast:, What: Transgenomic Inc. Fourth Quarter ... Conference Call, When: Thursday, February 28, 2008 ... How: Live over the Internet -- Simply log ... address above., To access the call via telephone, call ...
... 28 Memory,Pharmaceuticals Corp. (Nasdaq: MEMY ) announced today that it ... March,6, 2008, before the U.S. financial markets open. Management will provide a,Company ... 6, 2008, at 9:00 a.m. EST., Investors and ... ...
... New England Journal of Medicine, led by researchers at ... University of Massachusetts Medical School (UMMS), indicates a declining ... the first demonstration of a link between two independent ... has offered universal newborn screening to detect cystic fibrosis ...
Cached Biology Technology:Memory Pharmaceuticals to Announce Fourth Quarter and Full Year 2007 Results on Thursday, March 6, 2008 2Data show a decline in cystic fibrosis since introduction of prenatal carrier screening 2
Purified anti-LAT...
Nuclear/Cytosol Fractionation Kit Research Focus: other Storage Temperature: 4C Shipping Temperature: 4C...
Cytosol/Particulate Rapid Separation Kit Research Focus: other Storage Temperature: -20C Shipping Temperature: 4C...
Request Info...
Biology Products: