Navigation Links
Atmosphere may cleanse itself better than previously thought

A research team from Purdue University and the University of California, San Diego has found that the Earth’s atmosphere may be more effective at cleansing itself of smog and other damaging hydrocarbons than was once thought.

Scientists, including Joseph S. Francisco, have learned that some naturally occurring atmospheric chemicals react with sunlight more effectively than previously thought to produce substances that "scrub" the air of smog. This group of chemicals, after absorbing energy from sunlight, is able to break down smog and other pollutants into far less harmful components.

While many such chemicals have long been known to behave in this way ?producing natural air cleaners called OH radicals ?the chemicals the team studied have for the first time been observed to produce air-scrubbing OH radicals at low ultraviolet wavelengths. This observation has eluded science primarily because photochemistry at these wavelengths has been difficult to study.

"Thanks to an innovative laser technique that at last allows us to observe these chemicals in action, we now theorize that the atmosphere may produce up to 20 percent more OH radicals from these chemicals than we once thought," said Francisco, who is a professor of both earth and atmospheric sciences and chemistry in Purdue’s College of Science. "We now have a better understanding of an atmospheric process that could be giving our pollution-weary lungs more breathing room."

Francisco's research, which he performed at the University of California, San Diego with two of that institution's scientists, lead author Amitabha Sinha and graduate student Jamie Matthews, appears in this week's (May 9?3) online early edition of the journal Proceedings of the National Academy of Sciences. It will appear in the print edition on May 24 (vol. 102, issue 21).

Much air pollution consists of chemicals called hydrocarbons, which are produced when we burn organic matter such as wood or fossil fue
'"/>

Source:Purdue University


Page: 1 2 3 4

Related biology news :

1. New nano-canary in the nanotoxicology coalmine: The body itself
2. A bathroom that cleans itself
3. New stem-cell findings can help the body to cure itself
4. Smart genetic therapy helps the body to heal itself
5. Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others
6. No carrier necessary: This drug delivers itself
7. Chemists create Superbowl molecule; May lead to better health
8. Protein discovery could unlock the secret to better TB treatment
9. Signaling protein builds bigger, better bones in mice
10. Harnessing microbes, one by one, to build a better nanoworld
11. Two are better than one
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Atmosphere may cleanse itself better than previously thought

(Date:4/27/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... growing mobile commerce market, announces that its Wocket® Smart ... week of May, 2015 and will be fulfilling all ... Gino Pereira , Chief Executive Officer said, ... Wocket® enters the consumer market. We would like to ...
(Date:4/20/2015)... PASADENA, Calif. , April 20, 2015 ... San Gabriel Valley to implant a new miniaturized, wireless ... HF System is the first and only FDA-approved heart ... reduce hospital admissions when used by physicians to manage ... a sensor that is implanted in the pulmonary artery ...
(Date:4/14/2015)...  HYPR Corp. today announced it has joined ... tm , an industry consortium transforming online authentication ... technology and collaborate to deliver open specifications for ... and private, and easier to use. ... sensitive user information and eliminates the dependency on ...
Breaking Biology News(10 mins):Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 2Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 3HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3
... genetic testing methods helped public health officials control and ... hepatitis A virus in 2003 related to the consumption ... in the October 15 issue of The Journal of ... the study, Joseph J. Amon, PhD, MSPH, and colleagues ...
... a mathematical model of the mechanism birds use to ... feather structures involve the coordination of at least two ... "Understanding these mechanisms of feather growth gives a whole ... Richard Prum, senior author on the study. Prum is ...
... gene that controls the speed at which patients develop ... for this disease. The new study published in the ... week provides a new view of the mechanisms underlying ... health efforts aimed at containing the disease. , "About ...
Cached Biology News:Disrupting Cocaine-memories To Battle Addiction 2Simple explanation for complex pattern of feather development 2Scientists discover gene that controls speed of tuberculosis development 2
(Date:5/21/2015)... 2015 Seventh Wave Laboratories, a consulting-based ... of pharmaceutical products and medical devices, announced the purchase ... a 50,000 sq. ft. building more than three times ... growth. Facility renovations will begin immediately and the gradual ... occur in September. , “We are excited about ...
(Date:5/21/2015)... 21, 2015 uBiome, the leading ... partnership with PicnicHealth, a healthcare company that collects ... with Inflammatory Bowel Disease (IBD) will receive a ... uBiome research kit. Both companies were funded by ... , For more information on this partnership and ...
(Date:5/21/2015)... Patent Offering, The patent’s technology pertains to an ... within a body lumen (open space). Known as ... cost, single-use disposable illumination and camera module (housing). ... and the patent approval was received on January 6, ... the lighting and magnification of the endoscope for different ...
(Date:5/21/2015)... VANCOUVER , May 21, 2015 /PRNewswire/ - ... a clinical stage regenerative medicine company focused on ... an upcoming poster presentation at the International Society ... treatment for chronic Achilles tendinosis currently in a ... on May 29 th from 5:30 PM ...
Breaking Biology Technology:Seventh Wave Laboratories Purchases Building for Expansion, Upcoming Move 2Seventh Wave Laboratories Purchases Building for Expansion, Upcoming Move 3uBiome Partners with PicnicHealth 2uBiome Partners with PicnicHealth 3IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 2IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 3RepliCel to Present Unique Autologous Cell Treatment for Achilles Tendinosis at International Society for Cellular Therapy Conference 2RepliCel to Present Unique Autologous Cell Treatment for Achilles Tendinosis at International Society for Cellular Therapy Conference 3
... March 3, 2011 Anadys Pharmaceuticals, Inc. (Nasdaq: ... by developing novel medicines for the treatment of hepatitis C, ... fourth quarter and year ended December 31, 2010. ... create value in the evolving HCV landscape," said Steve Worland, ...
... Life Sciences, Inc. (Nasdaq: CALP ) today ... its Wako Diagnostics division, has obtained 510(k) clearance from ... uTASWako ® i30 Immunoanalyzer and AFP-L3 and DCP ... in patients with chronic liver disease.  The i30 Immunoanalyzer, ...
... of Pennsylvania demonstrates a more consistent and cost-effective method ... applications in a variety of fields, and was the ... As explained in a recently published study, a Penn ... is just a single atom thick over 95% of ...
Cached Biology Technology:Anadys Pharmaceuticals Reports Fourth Quarter and Year-End 2010 Financial Results and Highlights 2Anadys Pharmaceuticals Reports Fourth Quarter and Year-End 2010 Financial Results and Highlights 3Anadys Pharmaceuticals Reports Fourth Quarter and Year-End 2010 Financial Results and Highlights 4Anadys Pharmaceuticals Reports Fourth Quarter and Year-End 2010 Financial Results and Highlights 5Anadys Pharmaceuticals Reports Fourth Quarter and Year-End 2010 Financial Results and Highlights 6Anadys Pharmaceuticals Reports Fourth Quarter and Year-End 2010 Financial Results and Highlights 7Caliper's Microfluidic Technologies Enable 510(k) Approved Multiplexed Immunoassay System for Liver Cancer Risk Assessment 2Penn physicists develop scalable method for making graphene 2Penn physicists develop scalable method for making graphene 3
... The ImmEdge Pen, a hydrophobic barrier ... is designed for use with frozen or ... The ImmEdge Pen provides a heat-stable, water-repellent ... the tissue sections, prevents mixing of reagents ...
...
...
... The Corning CellBIND surface is produced ... a more hydrophilic surface giving more consistent, ... yields. CellBIND enhances cell attachment and growth ... serum-free medium. • CellBIND may provide a ...
Biology Products: