Navigation Links
Geologists studying groundwater arsenic levels in India empower Bengali women, children
Date:10/22/2009

em you see that they are very frustrated," Neal said. "They want to have some way of knowing how they can get rid of this problem. They want to know where to get clean water to drink so their kids don't get sick."

Datta said that some of the wells that the researchers tested have 30 times more arsenic than is accepted by the World Health Organization and the U.S. Environmental Protection Agency. Datta said the effects of arsenic in groundwater aren't apparent immediately but rather build up over time. It causes skin lesions and skin cancer that spreads to other parts of the body. It can lead to paralysis and organ failure.

"Technically this is a natural source of pollution," Datta said. "The major hypothesis is that the Himalayan river systems that feed the Ganges-Brahmaputra-Meghna delta have been carrying down sediments that are the major source of arsenic. These sediments in the form of specific minerals and in the right environmental conditions trigger the release of arsenic into the groundwater."

The researchers suggest that as the arsenic-rich water enters the river, the chemistry causes it to precipitate and adhere to iron-bearing minerals in the sediments.

In effect, they said, the sediments form an "iron curtain" to keep the arsenic out of surface water in the river. But recycling of these arsenic-laden sediments to the Ganges-Brahmaputra-Meghna delta aquifer may lead to further groundwater contamination.

Datta is collaborating with Karen Johannesson at Tulane University and John F. Stolz at Duquesne University. Results of studies by Datta and Columbia University researchers in the Meghna River in Bangladesh appeared Oct. 6 in the journal Proceedings of the National Academy of Sciences. Neal presented their research at the Geological Society of America meeting Oct. 18-21 in Portland, Ore.


'/>"/>

Contact: Saugata Datta
sdatta@k-state.edu
785-532-2241
Kansas State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Sierra Nevada rose to current height earlier than thought, say Stanford geologists
2. Geologists map rocks to soak CO2 from air
3. University of Leicester geologists demonstrate extent of ancient ice age
4. Studying component parts of living cells with carbon nanotube cellular probes
5. Jefferson urologists studying regenerated neo-bladder to help spinal cord injury patients
6. Researchers studying how singing bats communicate
7. Childrens Hospital studying drug with the potential to prevent/delay onset of type 1 diabetes
8. Jefferson scientists studying the effects of high-dose vitamin C on non-Hodgkin lymphoma patients
9. MIT applies engineering approach to studying biological pathways
10. Studying rivers for clues to global carbon cycle
11. Veterinary college researcher studying brain tumors in people and animals
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/19/2014)... by researchers from several Harvard University labs in ... and aspiring researchers with the intellectual raw materials ... from soft, flexible materials. , With the advent ... advances in manufacturing technology, soft robotics is emerging ... from conventional rigid robot design, but working with ...
(Date:9/19/2014)... sense of fairness did not evolve for the sake ... the benefits of continued cooperation, so say Frans de ... review article about inequity aversion (IA), which is defined ... is published in Science . , Their ... IA-related studies to address their hypothesis that it is ...
(Date:9/19/2014)... shows that legume plants regulate their symbiotic relationship ... are transmitted through the plant structure from leaves ... bacteria-holding nodules in the roots. This collaborative study ... for Basic Biology, the Graduate University for Advanced ... Resource Science in Japan. , Legumes, an ...
Breaking Biology News(10 mins):Soft robotics 'toolkit' features everything a robot-maker needs 2Evolution of responses to (un)fairness 2Evolution of responses to (un)fairness 3For legume plants, a new route from shoot to root 2
... puzzled scientists, and several scenarios have been proposed to ... appeared virtually simultaneously on Asia, Europe and North America ... research using the latest evidence suggests a completely different ... sudden, rapid global warming drove the dispersal. , ...
... 18 HIV-positive subjects shows that HIV in the brain and ... in the blood and peripheral tissues. , Moreover, serious cognitive ... of a particular mutation in the HIV envelope gene. ... Brain. It was led by Satish K. Pillai, PhD, a ...
... eat together, and most people find it impossible to ... share just about everything, including their genes. But sometimes ... predicts both of them should. , Scientists at the ... understand how two people who are so similar biologically ...
Cached Biology News:Ancient global warming drove early primates' dispersal 2Viral genetic differences are possible key to HIV dementia 2Viral genetic differences are possible key to HIV dementia 3How can identical twins be genetically different? 2How can identical twins be genetically different? 3
(Date:9/18/2014)... , September 18, 2014 /PRNewswire/ ... Markets ( http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has announced ... Materials - Global Strategic Business Report" ... (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ,This report analyzes the ... US$ Million by the following Product ...
(Date:9/18/2014)... -- Research and Markets has announced the ... Industry Report, 2014-2017" report to their offering. ... can differentiate into specialized cells and can divide (through ... can be applied to treatment of cardiovascular diseases, leukemia ... damage or lesion of liver, kidney and other parenchymal ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... "Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, ... report to their offering. The global ... CAGR of 22.7% from 2014 to 2019. Factors such ... growing adoption of companion diagnostics by the pharmaceutical industry, ...
(Date:9/18/2014)... , Sept. 18, 2014  MEI Pharma, Inc. (Nasdaq: ... clinical development of novel therapies for cancer, announced today that ... Officer, will present at BioCentury,s NewsMakers in the Biotech ... a.m. Eastern time from the Millennium Broadway Hotel & Conference ... webcast of the presentation can be accessed at www.meipharma.com ...
Breaking Biology Technology:Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3MEI Pharma To Present At BioCentury's NewsMakers Conference 2MEI Pharma To Present At BioCentury's NewsMakers Conference 3
... Dialysis Catheter With Patented Triple Arterial Lumen ... ... /PRNewswire-FirstCall/ - Angiotech Pharmaceuticals,Inc. (NASDAQ: ANPI , TSX: ANP) today ... catheter at the 2008,Society of Interventional Radiology (SIR) Annual Scientific Meeting ...
... 1:30 p.m. (Pacific Time); ... http://www.adventrx.com , SAN DIEGO, March 13 ... focused on in-licensing,developing and commercializing proprietary product candidates primarily ... financial,results for the fourth quarter and year ended December ...
... Brussels: THR), a biotechnology company focused on vascular,diseases, ... results for,the twelve month period ending 31 December ... to invest in its development,pipeline and has continued ... Highlights, - Successful placing of a total ...
Cached Biology Technology:Angiotech showcases its Hemostream(TM) Dialysis Catheter at the Society of Interventional Radiology (SIR) Annual Meeting 2Angiotech showcases its Hemostream(TM) Dialysis Catheter at the Society of Interventional Radiology (SIR) Annual Meeting 3Angiotech showcases its Hemostream(TM) Dialysis Catheter at the Society of Interventional Radiology (SIR) Annual Meeting 4Angiotech showcases its Hemostream(TM) Dialysis Catheter at the Society of Interventional Radiology (SIR) Annual Meeting 5ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 2ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 3ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 4ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 5ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 6ADVENTRX Pharmaceuticals, Inc. Reports Fourth Quarter and Full Year 2007 Financial Results 7ThromboGenics Announces 2007 Full Year Results 2ThromboGenics Announces 2007 Full Year Results 3ThromboGenics Announces 2007 Full Year Results 4
... Novagens PhageMaker System is optimized for maximum ... ligated with any bacteriophage l vector. Using a ... > 10^7 pfu/g arms (> 4 x 10^8 ... This one-tube system is extremely easy to use; ...
Gridded Cell Culture Petri Dish (20 mm molded in base), tissue-culture treated...
Chicken Anti-Human DNA-directed RNA Polymerase II 7.6 Kd Polypeptide (POLR2L Polyclonal AntibodyOther Sub-Family: not assigned-Other Applications: ELISA, Western Blot...
... cultured in RPMI 1640 with 2 mM L-glutamine ... In order to keep the antigens in ... The cells are arrayed on a 12-well ... surface specifically treated to enhance cellular attachment and ...
Biology Products: