Navigation Links
Atmospheric measuring device for understanding smog formation
Date:11/19/2007

UPTON, NY - Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a new tool for quantitatively measuring elusive atmospheric chemicals that play a key role in the formation of photochemical smog. Better measurements will improve scientists' understanding of the mechanisms of smog formation and their ability to select and predict the effectiveness of various mitigation strategies. The Brookhaven scientists have been issued a U.S. patent for their apparatus, which is available for licensing.

The device measures atmospheric hydroperoxyl radicals - short-lived, highly reactive intermediates involved in the formation of ozone, a component of photochemical smog - in the lowest layer of Earth's atmosphere. The levels of these radicals can indicate which of a variety of chemical pathways is predominant in converting basic starting ingredients - hydrocarbons, nitrogen oxides, and water vapor - into smog in the presence of sunlight.

"Understanding the relative importance of the various pathways can help you tailor your mitigation strategies," said Brookhaven atmospheric chemist Stephen Springston, one of the inventors. "For example, are you better off spending your money reducing hydrocarbon emissions or nitrogen oxide emissions?"

"Our measurements will help predict which strategy would be most successful for a particular set of atmospheric conditions - and make modifications to the strategy as those conditions change," said co-inventor Judy Lloyd of the State University of New York at Old Westbury, who holds a guest appointment at Brookhaven Lab.

Because hydroperoxyl radicals are so reactive, getting accurate measurements is not easy. "These chemicals are so fragile you cannot take a bottle home with you," Springston said. "You have to measure them where they form, in the atmosphere, before they react and disappear."

Various groups have developed detectors for hydroperoxyl radicals, but
'/>"/>

Contact: Karen McNulty Walsh
kmcnulty@bnl.gov
631-344-8350
DOE/Brookhaven National Laboratory
Source:Eurekalert

Page: 1 2

Related biology news :

1. Worldwide atmospheric measurements will determine the role of atmospheric fine particles
2. Device helps patients survive, regain function til transplant
3. Researchers developing device to predict proper light exposure for human health
4. IGERT fellows to design biodevices using flexible electronics
5. MIT aids creation of neural prosthetic devices
6. A study by the MUHC and McGill University opens a new door to understanding cancer
7. Understanding hypertension in African Americans proves elusive
8. Systems Biology poised to revolutionize the understanding of cell function and disease
9. Gregory Hannon wins 2007 Paul Marks Prize for contributions to understanding and treating cancer
10. Understanding, combating foodborne pathogens E. coli 0157 and salmonella
11. Researchers discover important tool in understanding differentiation in human embryonic stem cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/15/2014)... vital source of energy for both plants and animals ... into the cell could lead to the design of ... the amount of fruits and vegetables farmers are able ... of these "pathways" into the cell by piecing together ... of spider silk. , To determine the size, shape ...
(Date:9/15/2014)... to better understand how the fish communities might ... the type of environmental data to inform future ... protected areas," said Paula Whitfield, a research ecologist ... (NCCOS) and lead author of the study. , ... transition zone, where historically, both temperate and tropical ...
(Date:9/15/2014)... of the cheetah: The big predator is the fastest land ... just a few seconds. As it ramps up to top ... it reaches a full gallop. , Now MIT researchers have ... a robotic cheetah a sleek, four-legged assemblage of gears, ... its feline counterpart. The team recently took the robot for ...
Breaking Biology News(10 mins):X-rays unlock a protein's SWEET side 2X-rays unlock a protein's SWEET side 3Study finds warming Atlantic temperatures could increase range of invasive species 2Run, cheetah, run 2Run, cheetah, run 3
... public in looking at ways to detect and stop the spread ... boating have led to an army of marine alien species hitchhiking ... where and how non-native species get a foothold in a new ... public to record what they have seen. Part of the ...
... DALLAS June 15, 2008 Inspired by a ... Medical Center have created a small molecule that stimulates ... in culture. This finding might someday allow a ... the body, stimulated into maturity, and then re-implanted as ...
... Cell on June 13, 2008, Singapore scientists ... National University of Singapore (NUS) unveil an atlas that ... "switches" (transcription factors) that are critical for maintaining the ... high throughput sequencing technology, the scientists discovered over 3,000 ...
Cached Biology News:Queen's marine biologist investigates aliens beneath the waves 2UT Southwestern researchers create molecule that nudges nerve stem cells to mature 2UT Southwestern researchers create molecule that nudges nerve stem cells to mature 3Wealth of genomic hotspots discovered in embryonic stem cells 2
(Date:9/15/2014)... ANNAPOLIS, Maryland , 15. September 2014 /PRNewswire/ ... Week (IPAW) wird vom 12. bis 18. ... der Plasma Protein Therapeutics Association (PPTA) ... Ziele: , Das globale Bewusstsein für ... Den Beitrag von Plasmaspendern beim Retten und Verbessern ...
(Date:9/14/2014)... September 15, 2014 UMBC’s Biotechnology ... on Tuesday, October 21, 2014, from 12:00 to 1:00 ... the program’s innovative curriculum and practice-oriented instruction, designed for ... degree can help advance their career in the biotechnology ... online . , About UMBC’s Biotechnology Graduate Programs, ...
(Date:9/12/2014)... AMSTERDAM , Sept. 12, 2014   Arthur ... startup bio-bean, has won the Postcode Lottery Green Challenge ... awarded Kay euro 500,000 ($680,000 USD) at the final ... green business plan. Kay,s company uses ... advanced biofuel products, namely biodiesel and biomass pellets, used ...
(Date:9/12/2014)... 12, 2014 Sandia Biotech, Inc. announced ... agreement with STC.UNM (STC) for a technology developed by ... Albuquerque, New Mexico, and Queen Mary University of London ... the Recombinant Fluorescent Antibody Technology Platform (RFAP) was developed ... Medicine and Dr. Angray Kang from Queen Mary’s Department ...
Breaking Biology Technology:International Plasma Awareness Week feiert Spender und rückt seltene Krankheiten in den Mittelpunkt 2International Plasma Awareness Week feiert Spender und rückt seltene Krankheiten in den Mittelpunkt 3UMBC Biotechnology Graduate Programs’ Virtual Info Session, October 21, 2014 2Green Startup Bio-Bean Wins $680,000 in Postcode Lottery Green Challenge 2Green Startup Bio-Bean Wins $680,000 in Postcode Lottery Green Challenge 3Sandia Biotech and STC.UNM Announce Option Agreement to License Novel Recombinant Antibody Technology 2Sandia Biotech and STC.UNM Announce Option Agreement to License Novel Recombinant Antibody Technology 3Sandia Biotech and STC.UNM Announce Option Agreement to License Novel Recombinant Antibody Technology 4
... CINCINNATI , June 3 Kendle (Nasdaq: ... (CRO), today announced it is ranked a top CRO to ... Kendle is the only CRO to be ranked consistently among ... years in the annual U.S. and European site surveys conducted ...
... , ... by the Johns Hopkins University School of Medicine Still Available On-Demand,Four out of Five Attendees ... ... CardioCareLive , the live virtual congress presented by the Johns Hopkins University School of ...
... GUANGZHOU, China , June 3 ... "the Company"), primarily a,manufacturer, leading distributor and developer of Western pharmaceuticals,traditional ... Annual Meeting of Stockholders (the "Annual,Meeting") held on May 27, ... , ...
Cached Biology Technology:Kendle Rated a Top CRO to Work with for Fourth Consecutive Year 2Kendle Rated a Top CRO to Work with for Fourth Consecutive Year 3CardioCareLive, the Largest Online Cardiology Conference, Attracts 2,300 Attendees and Enjoys 92% Recommendation Rate 2CardioCareLive, the Largest Online Cardiology Conference, Attracts 2,300 Attendees and Enjoys 92% Recommendation Rate 3CardioCareLive, the Largest Online Cardiology Conference, Attracts 2,300 Attendees and Enjoys 92% Recommendation Rate 4CardioCareLive, the Largest Online Cardiology Conference, Attracts 2,300 Attendees and Enjoys 92% Recommendation Rate 5China Medicine Announces Results of Annual Meeting of Stockholders 2China Medicine Announces Results of Annual Meeting of Stockholders 3
Experion HighSens chips are the microfluidic chips used to perform high-sensitivity RNA analysis (picogram levels) with the Experion automated electrophoresis system. Each chip has the capacity to ru...
...
...
...
Biology Products: