Navigation Links
Arsenic in field runoff linked to poultry litter
Date:8/15/2010

MADISON, WI, August 16th, 2010 - Fields amended with poultry litter can accumulate significant levels of arsenic, according to studies by USDA-Agricultural Research Service (ARS) scientists and associates. These findings provide key information about the agricultural pollutants that can build up in agricultural soils over timeand possibly migrate into nearby streams and rivers.

Poultry producers have sometimes supplemented chicken feed with roxarsone, a compound containing arsenic, to control parasites and promote weight gain. Most of this arsenic is excreted by the birds and then becomes mixed in with sawdust and other litter materials used in poultry houses. Farmers typically use the litter as a nutrient-richand freefertilizer for amending their crop soils.

Chemist Clinton Church, who works at the ARS Pasture Systems and Watershed Management Research Unit in University Park, Pa., led this research. His partners included University Park soil scientist Peter Kleinman, support scientist Lou Saporito, research leader Ray Bryant and University of Maryland Eastern Shore scientist Arthur Allen.

For two years, the team measured arsenic levels in runoff that flowed from farm fields into seven drainage ditches in the Delmarva (Delaware, Maryland, Virginia) Peninsula, an area dominated by large-scale poultry production for decades. Runoff measurements indicated that annual arsenic losses from these fields could range from 0.004 kilograms per hectare to 19 kilograms per hectare. Runoff with the largest arsenic loads was recorded in a ditch closest to a main point source of the contaminanta shed where litter was stored.

They team also tracked phosphorus runoff, as it are known to interact and compete with arsenic. During storm events, both pollutants exhibited similar behavior. However, their concentrations differed significantly between ditches and showed no seasonal patterns. This suggests that management practices for phosphorus ar
'/>"/>

Contact: Sara Uttech
suttech@sciencesocieties.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

Page: 1 2

Related biology news :

1. New arsenic nanoparticle blocks aggressive breast cancer
2. Ferns evolution gives arsenic tolerance that may clean toxic land
3. Arsenic hyperaccumulating ferns: How do they survive?
4. Lehigh University professor receives Astellas Award for arsenic groundwater remediation efforts
5. Geologists studying groundwater arsenic levels in India empower Bengali women, children
6. Stanford scientists find new solutions for the arsenic-poisoning crisis in Asia
7. Montana State team finds Yellowstone alga that detoxifies arsenic
8. Arsenic and old toenails
9. Researchers develop drug delivery system using nanoparticles triggered by electromagnetic field
10. Illinois pumpkin fields face cunning opponent
11. Field Museum technology project wins prestigious award
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... Calif. Thomson Reuters , a leading source ... researchers at the University of California, Riverside in its ... minds of our times." , To generate the list, ... to identify researchers whose published work has had enormous ... among some 3,200 individuals who published the greatest number ...
(Date:8/22/2014)... Research presented at the 29th Annual International ... by Hera Therapeutics Inc. combats three types of ... percent of all cervical cancer. , When tested ... the replication of HPV-16, HPV-18 and HPV-11 cells, ... Broker, Ph.D., who presented the findings at the ...
(Date:8/22/2014)... is available in French . ... essential nutrients from African soils looming as a major threat ... today finds that over the last five years, 1.7 million ... have rejuvenated 1.6 million hectares and helped them double or ... for a Green Revolution in Africa (AGRA) focuses on intensive ...
Breaking Biology News(10 mins):5 UC Riverside scientists among world's most influential scientific minds 2Effort to confront Africa's soil health crisis helps millions of farmers triple yields 2Effort to confront Africa's soil health crisis helps millions of farmers triple yields 3Effort to confront Africa's soil health crisis helps millions of farmers triple yields 4
... mammalian embryo is one of the most contentious topics ... Hiiragi have new evidence to fuel the ongoing debate. ... showed compelling evidence for the absence of predetermined polarity ... contrast to those who feel that the site of ...
... novel retroviral resistance gene, called FEZ1, that can mediate a ... in cell culture. The researchers found that the high level ... caused a significant block to retroviral infection ?retroviruses were able ... but were excluded from entering the host cell nucleus. , ...
... drug motexafin gadolinium (brand name: Xcytrin, manufactured by Pharmacyclics, ... enzymes involved in cellular metabolism, according to a team ... of biochemistry and molecular biology at the Keck School ... The cellular disruption results in increases in the amount ...
Cached Biology News:USC researchers determine mechanism of action of chemotherapy drug 2
(Date:8/22/2014)... (TSXV: BRM) ("Biorem" or "the Company") today announced results for the three ... second quarter financial statements and MD&A have been filed on SEDAR ( ... Six-months ended June 30, ( in CDN$,000 except per share ... 2014 , 2013 Revenue , 2,459 , ... 56 , 1,485 , 385 , ...
(Date:8/22/2014)... University of Surrey have discovered how the receptors responsible ... genes. , The new study, published today in ... activity in turn regulates the cycle of all cells ... that the local biological clock and its control are ... clock in bladder physiology and ageing. , ...
(Date:8/22/2014)... (August 22nd), in the scientific journal PLoS ... establish the effect of serotonin on sensitivity to ... optical techniques., "Serotonin is a small molecule known ... brain functions, from the control of sleep and ... This neurotransmitter is also popularly thought to contribute ...
(Date:8/22/2014)... The first direct observations of how facets form ... towards more sophisticated and effective nanocrystal design and ... describing crystal growth breaks down at the nanoscale. ... (DOE),s Lawrence Berkeley National Laboratory (Berkeley Lab) used ... high-resolution, fast-detection camera to capture the physical ...
Breaking Biology Technology:Biorem Reports 2014 Second Quarter Results 2Biorem Reports 2014 Second Quarter Results 3Treatment for overactive bladder and irritable bowel syndrome advanced through pioneering research 2From happiness to pain: Understanding serotonin's function 2Shaping the future of nanocrystals 2Shaping the future of nanocrystals 3Shaping the future of nanocrystals 4
... an award-winning remote-detection version of NMR/MRI technology with ... microfluidic chips, researchers with the U.S. Department of ... have opened the door to a portable system ... be impractical if not impossible with conventional technologies. ...
... Around the globe, many nations are realizing that the ... say. And because an intentional introduction of bacteria, ... World Organization for Animal Health is issuing a paper ... beginning to think about maintaining international trade needs to ...
... of careful theoretical modeling and precise micro-manufacturing, a team ... of ultra-thin, self-adhesive electronics device that can effectively measure ... activity all without the use of bulky equipment, ... a new class of micro-electronics with a technology that ...
Cached Biology Technology:Berkeley Lab researchers apply NMR/MRI to microfluidic chromatography 2Berkeley Lab researchers apply NMR/MRI to microfluidic chromatography 3Berkeley Lab researchers apply NMR/MRI to microfluidic chromatography 4Global bioterrorism threat analyzed for world animal health office 2Stick-on tattoos go electric 2Stick-on tattoos go electric 3