Navigation Links
Carnegie Mellon researchers apply new statistical test
Date:3/17/2009

PITTSBURGHCarnegie Mellon University's Cliff I. Davidson, Joseph B. Kadane and Nanjun Chu have found that polluted air in the highly populated East End areas of Pittsburgh are more affected by major sources to the city's southeast than previously thought.

Because more than three-quarters of particulate matter found in the city originates from outside the Pittsburgh urban area mainly to the west the importance of certain air quality sources had not been quantified in the past.

However, the new study shows that the most polluted days often occur when the winds are from the southeast, when emissions from the U.S. Steel plants add to the regional background to raise PM (particulate matter) levels over the National Air Quality Standard.

"Those southeast winds are helping pollutants from the Clairton and Edgar Thompson works hitch a ride right into our backyards," said Davidson, a professor of civil and environmental engineering and engineering and public policy at Carnegie Mellon.

Pittsburgh's history and buildings are stained with soot from steel and coal-burning home furnaces and locomotives, but pollution controls over the past decade have helped remove much of the visible dust and soot from the air. Still, interest in tiny, almost invisible PM2.5 particles ballooned in the early 1990s, when studies showed a correlation between these particles and dangerous health effects, including respiratory problems.

In last month's prestigious Environmental, Science & Technology magazine, Davidson's research team said that by using statistical methods incorporating wind speed and wind direction at 10-minute intervals for a full year, they can help track the source of PM2.5. Their research also found that the number of days when concentration exceeds 35 micrograms of PM2.5 per cubic meter of air in the city's Squirrel Hill/Oakland areas was four times higher than the number of days allowed by the National Ambient Air Quality Standard admi
'/>"/>

Contact: Chriss Swaney
swaney@andrew.cmu.edu
412-268-5776
Carnegie Mellon University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Carnegies Donald Brown receives lifetime achievement award from Society for Developmental Biology
2. Carnegies Doug Koshland elected Fellow of the American Academy of Microbiology
3. Carnegies Joe Berry elected Fellow of the American Geophysical Union
4. Carnegies Arthur Grossman receives Gilbert Morgan Smith medal
5. Carnegie Mellon to unveil new sequestration plan
6. Carnegies Field and Koshland Elected AAAS Fellows
7. Carnegie Mellon developing automated systems to enable precision farming of apples, oranges
8. Carnegie Mellons Philip LeDuc participates in think tank forums
9. Carnegie Mellon to receive $900,000 from EPA for brownfields research
10. Carnegie Mellon MRI technology that non-invasively locates, quantifies specific cells in the body
11. Carnegie Mellon urges industry to broaden carbon footprint calculations
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... new professorship in tissue engineering to promote innovative ... and the Marine Biological Laboratory, supported by a ... Bell Foundation., The Eugene Bell Professorship in Tissue ... Engineering. That endowed chair holder also will direct ... Center for Regenerative Biology and Tissue Engineering, and ...
(Date:7/11/2014)... 2014---A team of researchers from The Chinese University of ... gene of wild soybean linked to salt tolerance, with ... saline soil. This study published online in Nature ... genomic information for crop improvement. , Soybean is an ... human selection, cultivated soybeans have less genetic diversities than ...
(Date:7/11/2014)... explored two different ways that allow unprecedented experimental ... formation of oxygen molecules in photosynthesis. The two ... Nature Communications . , "The new knowledge ... water oxidation, which are key components for building ... solar energy in fuels like hydrogen, ethanol or ...
Breaking Biology News(10 mins):New professorship in tissue engineering links molecular engineering, marine biology 2BGI reports a novel gene for salt tolerance found in wild soybean 2Molecular snapshots of oxygen formation in photosynthesis 2
... New Orleans, LA A team of researchers led ... at LSU Health Sciences Center New Orleans, has successfully ... cellular function to fruit flies. This powerful genetic tool ... allows scientists to selectively, rapidly, reversibly, and dose-dependently ...
... Colorado School of Medicine and Children,s Hospital Colorado researchers, ... to process Vitamin B12. The disorder is rare ... conditions cannot process vitamin B 12 properly," says CU ... of a paper about the new disease. "These individuals ...
... play a key role in preserving biological diversity. A new ... Agricultural Sciences (SLU), among others, indicates that if the world,s ... be ideally positioned to do so. Our study ... and how they overlap areas that are important for global ...
Cached Biology News:LSUHSC researchers develop new system to better study behavior, cell function 2Peering into genetic defects, CU scientists discover a new metabolic disease 2Peering into genetic defects, CU scientists discover a new metabolic disease 3Religious leaders can be key to biological diversity 2
(Date:7/10/2014)... 2014 OMICS Group’s 5th International conference ... August, 2014 at Double Tree by Hilton Beijing, China ... in Analytical & Bioanalytical research methods only to facilitate ... this occasion, Dr. Srinubabu Gedela, MD of OMICS Group ... a remarkable one in bringing a unique and international ...
(Date:7/10/2014)... ST. PETERSBURG, Russia , July 10, 2014 /PRNewswire/ ... the Russian Federation Dmitry Medvedev , presented ... a biopharmaceutical company BIOCAD . The Company is ... the scope of MabNext project BIOCAD develops a number ... of cancer and autoimmune diseases. The ceremony took place ...
(Date:7/10/2014)... --  Ceres, Inc . (Nasdaq: CERE ), ... results for the three months ended May 31, 2014 ... Ceres reported that the company and its customers have ... in Brazil, which concluded in June, despite dry and ... for part of the growing season. Yields of several ...
(Date:7/10/2014)... the journal PNAS (Proceedings of the National Academy ... and sleep deprivation have a significant effect on our ... the best time of day to test for diseases ... medicines effectively. , Researchers from the University of Surrey ... links between sleep deprivation, body clock disruption and metabolism, ...
Breaking Biology Technology:A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Time of day crucial to accurately test for diseases, new research finds 2
... introducing their products to a sold-out crowd of 700 ... , ,DEMOfall 2006 was an amazing event. The on-stage ... smart. The buzz in the pavilion was cacophonic. Heck, ... smiled upon us as the 67 companies delivered amazing ...
... information networks, Paul Barford believes the good guys always are ... , ,Barford, an assistant professor in the University of ... malicious activity that began in 2001 shows no signs of ... for simple notoriety have been joined by a more sophisticated ...
... Milwaukee, Wis. - Companies that increasingly depend on ... revolving door, a point that is not lost on Brian ... W. Baird & Co . , ,During the past 10 ... challenge across industries. Baird, which does not have many entry-level ...
Cached Biology Technology:Basking (briefly) in the DEMOfall 2006 glow 2Safe Internet requires total network security, prof. says 2Safe Internet requires total network security, prof. says 3CIO Leadership Series: Brian Brylow, Robert W. Baird & Co. 2CIO Leadership Series: Brian Brylow, Robert W. Baird & Co. 3CIO Leadership Series: Brian Brylow, Robert W. Baird & Co. 4
...
...
...
DryStrip aligners, 4. Category: Electrophoresis Systems & Standards & Reagents, IEF & SDS-PAGE & 2-D Electrophoresis, Multiphor II Kits & Components and Accessories....
Biology Products: