Navigation Links
Berkeley Lab researchers participate in Homeland Security study of subway airflow
Date:12/10/2009

Researchers with Lawrence Berkeley National Laboratory (Berkeley Lab) are participating in a study sponsored by the U.S Department of Homeland Security (DHS) in conjunction with the Massachusetts Bay Transportation Authority (MBTA) to determine how airborne contaminants would spread if released into Boston's subway system. During the study, which is now underway and runs from December 5-11, the Berkeley Lab researchers will be measuring how gas gets dispersed throughout tunnels and subway cars.

"The data we're collecting will help in the development of the next generation of biological and chemical agent detector systems," says Melissa Lunden, a chemist with the Environmental Energy Technologies Division (EETD) who leads Berkeley Lab's participation. "The information will also provide a better understanding of airflow characteristics in subway systems that should be useful for planning responses to fires, unintentional chemical or fuel spills, and other emergencies."

In addition to Lunden, other Berkeley Lab EETD researchers working on this DHS study include Doug Black, William Delp, Toshifumi Hotchi, Jennifer Logue, Ann McDonagh, Richard Sextro, and Tracy Thatcher.

While Boston's MBTA subway system has never been threatened or attacked, terrorists have threatened subway systems in New York and elsewhere. In 1995, a sarin gas attack on the Tokyo subway system by domestic terrorists killed a dozen people and injured dozens more.

"Proactively studying and preparing for possible threats is one of our most effective strategies for fortifying our critical infrastructure," said DHS Secretary Janet Napolitano in announcing this study. "DHS is undertaking many studies such as this across the country to inform our emergency response planning in preparation for chemical or biological terrorist attacks."

The MBTA study involves the release of common, harmless tracer gases used for indoor and outdoor air testing (sulfur hexafluoride and perfluoro-carbon); an inert particle tracer tagged with a biologically inert, non-toxic organic dye used in medical imaging applications; and, a common chemical often used as a brightening agent in laundry detergents and paper manufacturing. Particle and gas concentrations are being sampled in more than 20 stations and in subway cars, but normal MBTA operations are not being disrupted by the activities of the researchers.

Joining Berkeley Lab in this effort are scientists from Argonne National Laboratory, ICx Technologies of Arlington, Virginia, the Defence Science and Technology Laboratory of the United Kingdom, and the Chemistry Centre of Australia.

"The Argonne team, under David Brown, has created a computational model for predicting the behavior of airborne contaminants in subway systems," says Lunden. "We will now have actual subway data measurements that can be compared to the model's predictions and used to refine it."

Because air temperature is a driver of airflow, Lunden and her colleagues will return to Boston in the summer of 2010 to conduct further measurements. Berkeley Lab EETD researchers were part of a similar study conducted in 2007 and 2008 by DHS of the "Metro" subway system that serves the Washington, D.C. metropolitan area.


'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Related biology news :

1. Berkeley researchers identify photosynthetic dimmer switch
2. UC Berkeley virologist named Keck Distinguished Young Scholar
3. Nanyang Technological University and University of California, Berkeley pursue research alliance
4. Berkeley Lab lends expertise to India to promote energy efficiency
5. Researchers identify proteins involved in new neurodegenerative syndrome
6. Texas researchers and educators head for Antarctica
7. MGH researchers describe new way to identify, evolve novel enzymes
8. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
9. U of MN researchers discover noninvasive diagnostic tool for brain diseases
10. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
11. Researchers discover new strategies for antibiotic resistance
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Berkeley Lab researchers participate in Homeland Security study of subway airflow
(Date:4/18/2017)... SUNNYVALE, Calif. , April 18, 2017  Socionext Inc., a ... prototype of a media edge server, the M820, which features the ... face recognition software provided by Tera Probe, Inc., will be showcased ... and at the NAB show at the Las Vegas ... ...
(Date:4/13/2017)... According to a new market research report "Consumer IAM Market by ... Service, Authentication Type, Deployment Mode, Vertical, and Region - Global Forecast to ... USD 14.30 Billion in 2017 to USD 31.75 Billion by 2022, at ... ... MarketsandMarkets Logo ...
(Date:4/11/2017)... April 11, 2017 No two people ... at the New York University Tandon School of ... have found that partial similarities between prints are ... in mobile phones and other electronic devices can ... The vulnerability lies in the fact that fingerprint-based ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... Singh Biotechnology ... drug designation to SBT-100, its novel anti-STAT3 (Signal Transducer and Activator of Transcription ... is able to cross the cell membrane and bind intracellular STAT3 and inhibit ...
(Date:10/10/2017)... ... 2017 , ... Dr. Bob Harman, founder and CEO of VetStem Biopharma, ... The event entitled “Stem Cells and Their Regenerative Powers,” was held on ... DVM, MPVM was joined by two human doctors: Peter B. Hanson, M.D., Chief of ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... ... recipients of 13 prestigious awards honoring scientists who have made ... in a scheduled symposium during Pittcon 2018, the world’s leading conference and exposition ...
(Date:10/9/2017)... ... October 09, 2017 , ... The Giving Tree Wellness ... targeting the needs of consumers who are incorporating medical marijuana into their wellness ... Arizona. , As operators of two successful Valley dispensaries, The Giving Tree’s two ...
Breaking Biology Technology: