Navigation Links
Measurements of CO2 and CO in China's air indicate sharply improved combustion efficiency
Date:10/8/2010

releases energy by converting carbon to CO2, but some is only converted to CO, losing some of the available chemical energy. High-efficiency combustion processes, such as modern power plants and cars that meet current standards, produce little or no CO, and are thus both more energy-efficient and cleaner," said co-author J. William Munger, Senior Research Fellow at SEAS and at Harvard's Department of Earth and Planetary Sciences (EPS). "Inefficient processes like wood- and coal-burning in domestic stoves convert less than 90 percent of the carbon fuel to CO2, releasing the remainder as CO and wasting some of the energy. The combustion of outmoded industrial processes can fall somewhere in the middle. Knowing this, there's a lot we can learn from this chemical ratio in the air about combustion efficiency on the ground."

Over the period of studyand while controlling for daily, seasonal, and weather-induced fluctuationsthe data trends indicated increasing combustion efficiency in the Beijing region. Modernization of industrial boilers, replacing old vehicles with new ones meeting stricter standards, and closing of older industrial facilities can all contribute to this trend. (For more information, see the supplementary materials: http://www.seas.harvard.edu/news-events/images/Fact-Sheet.pdf.)

"The data indicate a trend toward cleaner, more efficient combustion in the Beijing region over several years leading up to the 2008 Olympics "when the government instituted particularly strict controls on pollution"and as far as we can tell so far, these gains have been maintained since the Olympics," said Munger.

The lead author of the study, Yuxuan Wang, is an Associate Professor in the Department of Environmental Science and Engineering at Tsinghua University and Principal Investigator of the Miyun atmospheric observatory. She completed her Ph.D. and po
'/>"/>

Contact: Caroline Perry
cperry@seas.harvard.edu
617-496-3815
Harvard University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. NIST issues human milk and blood serum SRMs for contaminant measurements
2. Carbon accounting from atmospheric measurements -- the aircraft perspective
3. UI researchers help to improve carbon measurements in global climate studies
4. Blueberries help fight artery hardening, lab animal study indicates
5. New variants found that indicate a predisposition to type 2 diabetes
6. Tiny mutation might help indicate proper dosage for half of all drugs
7. New research indicates plants can grow quickly or ward off hungry insects, but not both
8. Restaurant and packaged foods can have more calories than nutrition labeling indicates
9. New genetic research indicates Jewish priesthood has multiple lineages
10. Methyl bromide alternatives indicated for North Carolina tomato production
11. New study indicates smallpox vaccination effective for decades
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/22/2014)... Society of Environmental Toxicology and Chemistry (SETAC) held a ... the scientific research needed to understand the risks of ... The effort was extended, and results were published ... journal, Integrated Environmental Assessment and Management (IEAM). ... interviewing the lead author of the study, Murray Rudd ...
(Date:9/22/2014)... homes, if they could locate people, places and objects. ... lasers, which have difficulty reliably recognizing things and can ... way robots can "sense" what is around them is ... (UHF RFID) tags. Inexpensive self-adhesive tags can be stuck ... room for the correct tag,s signal, even when the ...
(Date:9/22/2014)... More than 7,000 geoscientists will gather in Vancouver, ... Geological Society of America,s 126th Annual Meeting & Exposition ... topics as the transportation of crude oil, earthquake prediction ... field guide, Trials and Tribulations of Life on an ... the Vancouver area. , A broad range of topics ...
Breaking Biology News(10 mins):Priorities for research on pharmaceutical and personal care products in the environment 2New RFID technology helps robots find household objects 2New RFID technology helps robots find household objects 3Geoscience topics in the spotlight -- Vancouver, BC 2Geoscience topics in the spotlight -- Vancouver, BC 3Geoscience topics in the spotlight -- Vancouver, BC 4Geoscience topics in the spotlight -- Vancouver, BC 5
... and other parts of the U.S. plus increasing worldwide ... Texas AgriLife Research and Extension Center in Uvalde even ... includes develop methods of augmenting aquifers, ways to determine ... water taken from them," said Dr. Bill Holloway of ...
... team of scientists from the National Institute of Oceanography ... expedition on research vessel Polarstern. The cooperative project Lohafex ... But it has dampened hopes on the potential of ... dioxide (CO 2 ) and thus mitigate global warming. ...
... a unique technique for sensing motion may inspire a new ... Although members of the fish species ... the movement of water around them with gel-covered hairs that ... and navigate through their lightless environment inspired a group of ...
Cached Biology News:Uvalde Center water research could have national, international applications 2Uvalde Center water research could have national, international applications 3Lohafex provides new insights on plankton ecology 2Lohafex provides new insights on plankton ecology 3Lohafex provides new insights on plankton ecology 4Researchers develop flow sensors based on hair structures of blind cavefish 2Researchers develop flow sensors based on hair structures of blind cavefish 3
(Date:9/23/2014)... Dr. Williams says, “Find The Black ... offers a three phase process that can lead to ... that would go far beyond anything previously imagined. First ... of healthcare.” , “Every effort to improve the quality ... discernable progress throughout that system because all of the ...
(Date:9/23/2014)... England , September 23, 2014 ... launched with funding from Imperial Innovations, Cambridge Innovation Capital ... Inivata, a clinical cancer genomics company focused on ... analysis to improve cancer testing and treatment, today ... round led by Imperial Innovations and including Cambridge ...
(Date:9/22/2014)... and SANTA CLARA, Calif. , Sept. ... WBMD ), the leading source of health information, ... survey that provide novel insights regarding physician and ... and care.  Dr. Eric Topol , a leading ... who serves as both Editor-in-Chief of Medscape and Chief ...
(Date:9/22/2014)... it is to stop bleeding, are very simple. They ... the physical environment around them, researchers at Emory and ... with greater stiffness by increasing their stickiness, the degree ... components of the clotting system, the researchers found. , ... in that they are able to sense the physical ...
Breaking Biology Technology:Dr. Ira Williams Offers the Healthcare Solution Necessary for Patient Safety Improvement 2Inivata Raises £4m to Realise the Potential of ctDNA Analysis to Improve Cancer Treatment Through Simple Blood Tests 2Inivata Raises £4m to Realise the Potential of ctDNA Analysis to Improve Cancer Treatment Through Simple Blood Tests 3Inivata Raises £4m to Realise the Potential of ctDNA Analysis to Improve Cancer Treatment Through Simple Blood Tests 4WebMD/Medscape Digital Technology Survey Reveals Unique Insights Into How Patients and Physicians Perceive the Role, Potential and Risks Associated with Digital Health Technologies 2WebMD/Medscape Digital Technology Survey Reveals Unique Insights Into How Patients and Physicians Perceive the Role, Potential and Risks Associated with Digital Health Technologies 3WebMD/Medscape Digital Technology Survey Reveals Unique Insights Into How Patients and Physicians Perceive the Role, Potential and Risks Associated with Digital Health Technologies 4Platelets modulate clotting behavior by 'feeling' their surroundings 2
... NexBio announced top line data from a Phase 2 ... and prophylaxis of Influenza-Like Illness (ILI) caused by all ... pandemic influenza strains. In a double-blind, placebo-controlled, Phase 2 ... treatment with DAS181 resulted in a significant reduction in ...
... that takes just fifteen minutes to analyze a sample ... US researchers. The technology amplifies any anthrax DNA present ... just 40 microscopic cells of the deadly bacteria Bacillus ... a potentially lethal microbe that might be used intentionally ...
... globe, many nations are realizing that the potential for ... And because an intentional introduction of bacteria, a virus ... for Animal Health is issuing a paper aimed at ... think about maintaining international trade needs to be aware ...
Cached Biology Technology:NexBio Reports Safety and Significant Antiviral Activities of DAS181 (Fludase)* from a Dose-Ranging Phase II Clinical Trial 2NexBio Reports Safety and Significant Antiviral Activities of DAS181 (Fludase)* from a Dose-Ranging Phase II Clinical Trial 3NexBio Reports Safety and Significant Antiviral Activities of DAS181 (Fludase)* from a Dose-Ranging Phase II Clinical Trial 4Nano detector for deadly anthrax 2Global bioterrorism threat analyzed for world animal health office 2
... V is a fully integrated system for ... processing that deliver excellent quality microarray images. ... quality microarray scanner that is based on ... background rejection and spatial resolution. The DNAscope ...
Ca2+ Channel Ca gamma 2 Purified Anti-Mouse, Anti-Rat, Anti-Human clone Polyclonal, Isotype Rabbit Ig, 50 µl Consult technical datasheet for details....
Rabbit polyclonal antibody to NCOA2 [Agarose Immobilized]...
Monocarboxylate (lactate) transporter 2...
Biology Products: