Navigation Links
Wind concentrates pollutants with unexpected order in an urban environment
Date:8/23/2012

Cities with their concrete canyons, isolated greenery, and congested traffic create seemingly chaotic and often powerful wind patterns known as urban flows. Carried on these winds are a variety of environmental hazards, including exhaust particles, diesel fumes, chemical residues, ozone, and the simple dust and dander produced by dense populations.

In a paper published in the American Institute of Physics (AIP) journal Physics of Fluids, researchers present the unexpected finding that pollutant particles, rather than scattering randomly, prefer to accumulate in specific regions of the urban environment and even form coherent structures. "The unexpected finding is coherent patterns in fluid flows were thought to have no real analog in nature," said Wenbo Tang of Arizona State University in Tempe. "In previous studies, the existence of these patterns in fluid flows was only verified with idealized 'theoretical' flows. It was not known if such structures were robust enough to manifest in the environment."

The researchers were able to verify this by using a new mathematical formula, the first of its kind, to simulate the long-term random motion of pollutant particles as would be found in the real world. These more realistic simulations revealed that coherent patterns emerged from the random motions of particles carried along by the urban flow. The results can be used to generate maps of well and poorly mixed regions and highlight urban areas that are most susceptible to high concentrations of pollutants, indicating locations that should be avoided or remedied.

According to the researchers, the modeling capabilities developed in this project directly benefit decision makers addressing issues related to urban pollution, human comfort, and the effects of climate change on urban areas. The research also aims to understand the interconnection of urban flows with the regional and global atmosphere.


'/>"/>

Contact: Charles Blue
cblue@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Page: 1

Related biology news :

1. Pollutants could pose health risks for 5 sea turtle species
2. Unexpected discovery reveals a new mechanism for how the cerebellum extracts signal from noise
3. Unexpected crustacean diversity discovered in northern freshwater ecosystems
4. Research identifies mechanism responsible for eye movement disorder
5. Canine tail chasing resembles human obsessive compulsive disorders
6. Making sense out of the biological matrix of bipolar disorder
7. First GWAS studies of obsessive-compulsive disorder and Tourette syndrome published
8. New model synapse could shed light on disorders such as epilepsy and anxiety
9. Wayne State researchers working to improve genetic analysis, disorder detection
10. Gene mutations linked to most cases of rare disorder -- Alternating Hemoplegia of Childhood
11. Air in expectant moms homes contains pesticides, border study finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/20/2015)... 20, 2015 The announcement comes ... Glenbeigh Records Management (GRM), Ireland,s foremost ... Bank. Having built up an impressive track record of clients ... player within the records management sector in Dubai ... is GCC staffbase and employ a further eight staff members ...
(Date:4/13/2015)... , April 13, 2015 ... Research, "Global Biometrics Market Forecast & Opportunities, 2020", the ... CAGR of around 14% till 2020. The biometrics ... large scale implementation and review of biometric management ... of new products with greater efficiency, are resulting ...
(Date:4/8/2015)... 8, 2015  Infinisource, a leading provider of SaaS-based ... Morpho, a leading supplier of biometric identification and ... market,s most advanced biometrically-enabled time clock, the companies ... clock is setting a bold, new standard for ... the small and mid-size employer. When connected to ...
Breaking Biology News(10 mins):Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3Global Biometrics Market to Cross US$ 21 Billion by 2020: TechSci Research 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 3
... sickening more than 100 people and listeria-contaminated cantaloupes killing ... food-borne illness and determine their sources has become a ... Oct. 14 in the journal Applied and Environmental ... University scientists, will enable government agencies and food companies ...
... South Florida (USF) College of Public College Health have shown ... earliest form of malaria parasites can lay dormant in red ... the antimalarial drug artesunate. The study, which appears Oct. ... suggests that this early-stage dormancy phenomenon contributes to the failure ...
... industry speakers will present at Interactive Response Technologies ... Philadelphia. Nearly 100 IRT professionals convene for this interactive ... in clinical trials - using IVR/IWR to collect and ... look to mitigate delays, minimize costs and increase overall ...
Cached Biology News:New test can precisely pinpoint food pathogens 2Dormant malaria parsites in red blood cells may contribute to treatment failure 2
(Date:5/26/2015)... 26, 2015 OHAUS Corporation, a leading ... is set to release a new line of Water ... instruments. For over a century, the OHAUS brand has ... throughout the world. Now in North America, OHAUS ... Weighing to include water quality measurement. The OHAUS Starter ...
(Date:5/26/2015)... 2015  A simple blood test developed at the ... early Alzheimer,s disease is a step closer to being ... guidelines that are needed before a blood test could ... Alzheimer,s & Dementia . The guidelines establish protocols and ... that includes UNT Health Science Center. "If ...
(Date:5/26/2015)... Leading Regenerative Veterinary Medicine® Company ... relationship with Veterinary Growth Partners, a membership organization ... provide access to vital services to veterinary practices. ... as a dedicated partner in bringing stem cell ... and using stem cells natural abilities to promote ...
(Date:5/26/2015)... 26, 2015 Mr. Kevin Xu , President ... Barack Obama and President Bill Clinton ... loss of Dr. Rongxiang Xu , Kevin,s father. ... ahead of his time, Dr. Xu,s commitment to the advancement ... legacy that will not be forgotten. As a renowned life ...
Breaking Biology Technology:OHAUS Corporation to Release New Water Analysis Meters in 2015 2OHAUS Corporation to Release New Water Analysis Meters in 2015 3Guidelines bring UNT Health Science Center's blood test for Alzheimer's one step closer 2VetStem Biopharma & Veterinary Growth Partners Join Forces to Increase Member Veterinary Hospital Revenue Through Cutting Edge Medical Offering 2VetStem Biopharma & Veterinary Growth Partners Join Forces to Increase Member Veterinary Hospital Revenue Through Cutting Edge Medical Offering 3Dr. Rongxiang Xu, Beyond A Legend 2
... Sign Strategic Partnership in Molecular Diagnostics. Co-development of assays and co-distribution ... gains exclusive rights in microbiology,bioMerieux takes equity stake in Biocartis." /> ... MARCY L,ETOILE, France and LAUSANNE, Switzerland, Nov. 4, 2010 ... ...
... Nov. 4, 2010 Onda Corporation, the global leader ... introduced the latest additions to the hydrophone product family ... HFO-660 is a new fiber optic hydrophone system that ... emerging applications of HITU. It is complemented with the ...
... EDISON, N.J., Nov. 4, 2010 International Technidyne Corporation ... THOR ), announced today the completion of its ... private equity firm, in an all cash transaction valued ... leader in hemostasis management and Point-of-Care (POC) testing for ...
Cached Biology Technology:bioMerieux and Biocartis Sign Strategic Partnership in Molecular Diagnostics 2bioMerieux and Biocartis Sign Strategic Partnership in Molecular Diagnostics 3bioMerieux and Biocartis Sign Strategic Partnership in Molecular Diagnostics 4bioMerieux and Biocartis Sign Strategic Partnership in Molecular Diagnostics 5bioMerieux and Biocartis Sign Strategic Partnership in Molecular Diagnostics 6bioMerieux and Biocartis Sign Strategic Partnership in Molecular Diagnostics 7bioMerieux and Biocartis Sign Strategic Partnership in Molecular Diagnostics 8bioMerieux and Biocartis Sign Strategic Partnership in Molecular Diagnostics 9Onda Introduces a New Fiber Optic Hydrophone and Scanning Tank 2International Technidyne Corporation Acquired by Warburg Pincus 2International Technidyne Corporation Acquired by Warburg Pincus 3
... Fiberboard boxes are ideal for use in refrigerators, ... storage racks. Four vibrant colors allow for color coding ... allow liquid nitrogen drainage or promote cool air circulation. ... which holds 81 tubes. Box dimensions: 13 ...
RABBIT ANTI BACTERIAL HISTIDASE...
2,4-Dinitrophenyl hapten is conjugated to BSA (Bovine Serum Albumin) protein through lysine....
See product name for description....
Biology Products: