Navigation Links
New low-cost, nondestructive technology cuts risk from mercury hot spots
Date:10/25/2013

Hot spots of mercury pollution in aquatic sediments and soils can contaminate local food webs and threaten ecosystems, but cleaning them up can be expensive and destructive. Researchers from the Smithsonian Environmental Research Center and University of Maryland, Baltimore County have found a new low-cost, nonhazardous way to reduce the risk of exposure: using charcoal to trap it in the soil.

Mercury-contaminated "Superfund sites" contain some of the highest levels of mercury pollution in the U.S., a legacy of the many industrial uses of liquid mercury. But despite the threat, there are few available technologies to decrease the risk, short of digging up the sediments and burying them in landfillsan expensive process that can cause significant ecological damage.

In a new study published in the journal Environmental Science & Technology, Cynthia Gilmour (SERC), Upal Ghosh (UMBC) and their colleagues show that adding activated carbon, a form of charcoal processed to increase its ability to bind chemicals, can significantly reduce mercury exposure in these highly contaminated sites. With funding and support from several industry and federal partners, the team tested the technology in the laboratory with mercury-contaminated sediments from four locations: a river, a freshwater lake and two brackish creeks. To reduce the harm from mercury, the sorbents also had to decrease the amount of methylmercury taken up by worms.

"Methylmercury is more toxic and more easily passed up food webs than inorganic mercury," said Gilmour, the lead author on the study. "Unfortunately, methylmercury is produced from mercury contamination by natural bacteria. To make contaminated sites safe again, we need to reduce the amount of methylmercury that gets into animals."

Added at only 5 percent of the mass of surface sediments, activated carbon reduced methylmercury uptake by sediment-dwelling worms by up to 90 percent. "This technology provides
'/>"/>

Contact: Kristen Minogue
minoguek@si.edu
443-482-2325
Smithsonian
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Bio-Rads Droplet Digital PCR technology highlighted at ASHG Annual Meeting
2. Laser technology sorting method can improve Capsicum pepper seed quality
3. NTU scientists make breakthrough solar technology
4. Beaumont named to 2013 InformationWeek 500 list of top technology innovators
5. Cytos Biotechnology Presents Additional Results From Phase 2a Study of CYT003 for the Treatment of Allergic Asthma
6. New NIH awards focus on nanopore technology for DNA sequencing
7. Biometrics & Technology Sector Leaders Briefing: NXT-ID, Intel, Sony, Facebook, Dell
8. Journal of Spinal Cord Medicine publishes special issue on assistive technology
9. Techne Corporation Appoints Dr. J. Fernando Bazan As Chief Technology Officer
10. Neurotechnology Announces NCheck Bio Attendance 2.0 Biometric Time and Attendance Software
11. Iris Biometrics Leader, EyeLock, Redefines Identity Authentication, Announces Availability of Software Development Kit to Accelerate Deployment of Technology
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New low-cost, nondestructive technology cuts risk from mercury hot spots
(Date:2/24/2015)... 2015 This report analyzes the worldwide markets for ... analytics for the US, Canada , ... Asia-Pacific , Middle East , ... forecasts are provided for the period 2013 through 2020. Also, ... data and analytics are derived from primary and secondary research. ...
(Date:2/19/2015)... Feb .19, 2015 Research and Markets ... of the "Military Electro-Optical / Infrared Systems ... by Platform - Forecast to 2020" report ... electro-optical/infrared systems market is expected to reach $16.35 ... 7.71%. This report segments the military ...
(Date:2/12/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD and ... focused on the growing mobile commerce market, announced today ... DISTRIBUTED METHOD AND SYSTEM TO IMPROVE COLLABORATIVE SERVICES ... NXT-ID,s position in the emerging "Internet of Things" by ... multiple devices to collaborate with one another to improve ...
Breaking Biology News(10 mins):World Iris Biometrics Industry 2World Iris Biometrics Industry 3World Iris Biometrics Industry 4World Iris Biometrics Industry 5World Iris Biometrics Industry 6World Iris Biometrics Industry 7World Iris Biometrics Industry 8World Iris Biometrics Industry 9World Iris Biometrics Industry 10World Iris Biometrics Industry 11Military Electro-Optical / Infrared Systems (Image Intensification, Laser, Infrared) Market - Forecast to 2020: Featuring Profiles of the Market Leaders on this $16 Billion market 2Military Electro-Optical / Infrared Systems (Image Intensification, Laser, Infrared) Market - Forecast to 2020: Featuring Profiles of the Market Leaders on this $16 Billion market 3NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 3
... it triggers a series of biochemical reactions in immune-system cells ... Usually, the result is an effective immune response, leading to ... But in the case of some of the world’s deadliest ... well as the influenza virus strain responsible for the 1918 ...
... to understanding the course of human evolution. A human skull ... in the Eastern Cape Province of South Africa, is one ... led by Frederick Grine of the Departments of Anthropology and ... today in Science magazine has dated the skull to 36,000 ...
... the ultimate enzyme responsible for all aerobic life on ... crucial component of the cellular machinery that generates energy ... expect that scientists would have a clear understanding of ... P. Collman, professor emeritus of chemistry at Stanford University. ...
Cached Biology News:New study may show how to forestall a fatal, virus-caused immune-system meltdown 2New study may show how to forestall a fatal, virus-caused immune-system meltdown 3Hofmeyr skull supports the 'Out of Africa' theory 2Hofmeyr skull supports the 'Out of Africa' theory 3Researchers create artificial enzyme that mimics the body's internal engine 2Researchers create artificial enzyme that mimics the body's internal engine 3
(Date:2/26/2015)... Frederick, MD (PRWEB) February 26, 2015 ... solutions provider, released FreezerPro® version 6.2 – the latest ... The FreezerPro® reputation is that of a quick and ... related work. With the latest version, RURO engineering has ... on import to move large amounts of sample records. ...
(Date:2/26/2015)... 2015  Dyadic International, Inc. ("Dyadic") (OTCQX: DYAI), ... technologies are used to develop, manufacture and sell ... chemical, biopharmaceutical and industrial enzyme industries, announced today ... year ending December 31, 2014 after market close ... a conference call that day at 5:00 p.m. ...
(Date:2/26/2015)... 26, 2015 Ceres, Inc . today ... Oracle PartnerNetwork. In attaining Gold Level membership, Ceres has ... Oracle-related knowledge in delivering Ceres, Persephone genome visualization software ... Originally developed for in-house use by Ceres, ... and out of massive amounts of genetic data, from ...
(Date:2/26/2015)... 2015  Epic Sciences announced today that President and ... the 35th Annual Cowen and Company Health Care Conference ... Room, 3rd Floor. The conference will be held at ... Epic is developing diagnostic tests of high clinical ... changes that occur during the course of cancer treatments. ...
Breaking Biology Technology:RURO Releases FreezerPro® version 6.2 2Dyadic International To Announce Fourth Quarter 2014 Financial Results And Host Conference Call On Wednesday, March 11, 2015 2Dyadic International To Announce Fourth Quarter 2014 Financial Results And Host Conference Call On Wednesday, March 11, 2015 3Ceres Becomes Oracle PartnerNetwork Gold Level Partner 2Ceres Becomes Oracle PartnerNetwork Gold Level Partner 3Ceres Becomes Oracle PartnerNetwork Gold Level Partner 4Epic Sciences to Present at 35th Annual Cowen and Company Health Care Conference 2
... by the federal Food and Drug Administration plummets year to ... laborious drug development process. , ,Currently it takes about 18 ... or cell or protein one wants to influenceto introduce a ... has led pharmaceutical companies and the research firms that contract ...
... EraGen Biosciences , a Wisconsin-based life science ... technologies that accelerate the drug discovery process, advance ... it has selected ITOCHU Corporation and ... phylogenomics product, Master Catalog , in Japan. ...
... and productive. Technology promises both. In the ... in the adoption of technology among smallto-medium-size businesses, as ... will incorporate technology to add efficiency to their business ... , ,There are several new federal and state ...
Cached Biology Technology:Researchers Push for Faster Drug Development 2Researchers Push for Faster Drug Development 3EraGen Expands in Japan 2Doing it Right: Business IT Fusion for the Future 2Doing it Right: Business IT Fusion for the Future 3
... Kit, Protein, 1. Based on the ... the kit gives essentially colorless backgrounds ... Kit, Protein provides convenient, reproducible and ... gels in less than two hours.The ...
Cyno macaque plasma and serum - various quantities available...
3'-O-Methylguanosine 5'-Triphosphate, Sodium, 1 umol. Category: Nucleotides & Enzymes & Biochemicals, Nucleotides, Additional Nucleotide Products....
EPH electrode, cathode, 1. Category: Electrophoresis Systems & Standards & Reagents, IEF & SDS-PAGE & 2-D Electrophoresis, Multiphor II Kits & Components and Accessories....
Biology Products: