Navigation Links
Ozone levels drop 20 percent with switch from ethanol to gasoline
Date:4/28/2014

Having lived in So Paulo, Salvo realized the city offered the best possible "natural laboratory" -- a real-life situation as opposed to hypothetical -- to study consumer behavior and its impact on air quality using big data. The air-monitoring network in the megacity is superb, and the weather is moderate, with temperatures fluctuating little throughout the year.

During two episodes of high sugar prices in 2010 and again in 2011, the price of ethanol increased, causing consumers to switch their fuel usage to gasoline. (Brazil is a big producer of sugar, and the country's ethanol is made from sugar cane.) These two episodes provided the perfect situation for Salvo and Geiger's study.

"So Paulo was the place to do this initial study because consumers can and do switch between fuels for reasons unrelated to air quality, roads are gridlocked, and there is so much good data available to researchers," Salvo said.

So Paulo has the world's largest flexible-fuel vehicle fleet, with cars that can run on all gasoline, all ethanol or some mix of the two. Gasoline prices in Brazil are controlled by the government, and the domestic sugar price -- and therefore the domestic price of ethanol -- is determined by the world sugar price.

Scientific studies using big data can help take policymakers a long way in figuring out how to mitigate air pollution given local conditions, the researchers said. Effects of fuel usage will depend on local atmospheric composition, such as fine particle pollutants.

"Ozone and nitric oxide are both contributors to urban smog, so depending on how well a city is able to mitigate air pollution, ethanol may not be the 'green fuel' that it is often called," said Geiger, professor of chemistry in the Weinberg College of Arts and Sciences. He and Salvo are now analyzing how the concentration of other air pollutants in So Paulo, specifically fine particles, change in response to the choices of motorists in
'/>"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. NASA simulation portrays ozone intrusions from aloft
2. NASA reveals new results from inside the ozone hole
3. Acid raid, ozone depletion contributed to ancient extinction
4. Its not just the heat -- its the ozone: Study highlights hidden dangers
5. Ozone masks plants volatiles, plant eating insects confused
6. NASA pinpoints causes of 2011 Arctic ozone hole
7. Ground-level ozone falling faster than model predicted
8. 2 climate scientists win 2012 Vetlesen Prize for work on ozone hole, ice cores
9. Ozone levels have sizeable impact on worker productivity
10. University of Illinois receives grant to study ozone resistance in corn
11. Ozones impact on soybean yield: Reducing future losses
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/21/2014)... hotspots in areas across Riau province on Sunday, July ... following a decline in rainfall. The number of ... what had been reported one day prior, which had ... in six regencies and municipalities, most of which were ... haze it creates could potentially spread via winds to ...
(Date:7/21/2014)... to climate change, due to greenhouse gasses emitted by ... the rise and that beef cattle are responsible for ... animals. It is published by Climactic Change . ... it comes to climate change. It is released by ... portion of greenhouse gas totals. But methane and nitrous ...
(Date:7/21/2014)... causing problems for the world,s water sources. In ... stormwater runoff to be one of the top ... lakes, ponds, reservoirs, bays, and estuaries. The pollutants ... wildlife populations, foul drinking water, and make recreational ... University are looking to rain gardens as one ...
Breaking Biology News(10 mins):Climate: Meat turns up the heat 2Filter bed substrates, plant types recommended for rain gardens 2
... plants ship sugars from their leaves to flowers, roots, ... engineering techniques, Cornell researchers have finally proven a long-standing ... deepen understanding of basic plant biology but could one ... photosynthetic rates, yields and carbon dioxide intake. This might ...
... to better understand the relationship between the bacteria ... defense cells that engulf them., The researchers have ... tuberculosis does not react when immune system ... bacterium,s genes become activated minutes after the pathogen ...
... winners of its student travel award to attend the ... Biophysics Congress in Long Beach, California, February 2-6, 2008. ... on scientific merit, with priority given to those who ... awardee receives a travel grant and will be recognized ...
Cached Biology News:Cornell researchers prove how plants transport sugars 2Cornell researcher seeks clues to how tuberculosis infects cells 2Biophysical Society announces winners of 2008 Student Travel Awards 2Biophysical Society announces winners of 2008 Student Travel Awards 3Biophysical Society announces winners of 2008 Student Travel Awards 4Biophysical Society announces winners of 2008 Student Travel Awards 5
(Date:7/18/2014)... Ill. , July 18, 2014 /PRNewswire/ ... infographic highlighting AbbVie and Shire,s complementary fit ... A copy of the infographic ... at:  http://www.abbvieinvestor.com/phoenix.zhtml?c=251551&p=irol-disclaimer-documents In ... Code, a copy of this announcement will ...
(Date:7/18/2014)... Switzerland , July 18, 2014 ... Education in Animal Research for the third consecutive year. ... State University, will attend a 1-week course at Zürich ... of the 3Rs (Replace, Reduce, Refine). As head of ... Popov has been given the task of adapting experimental ...
(Date:7/17/2014)... July 17, 2014  Vanda Pharmaceuticals Inc. (Vanda) (NASDAQ: ... the development and commercialization of products for the treatment ... release results for the second quarter of 2014 on ... The Company will host a conference call ... during which Vanda management will discuss the second quarter ...
(Date:7/17/2014)... Australia , July 17, 2014  Prana Biotechnology ... provided an update on its clinical development program for ... the Florey Institute of Neuroscience and Mental Health, The ... Phase 2 IMAGINE and EURO trials in his presentation ... Copenhagen, Denmark . The presentation is ...
Breaking Biology Technology:NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 2NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 3NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 4NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 5NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 6NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 7Young Moscovite Researcher Receives this Year's "Basel Declaration Award for Education in Animal Research" 2Vanda Pharmaceuticals to Announce Second Quarter 2014 Financial Results on August 7, 2014 2Prana Alzheimer's disease Development Program update 2Prana Alzheimer's disease Development Program update 3Prana Alzheimer's disease Development Program update 4Prana Alzheimer's disease Development Program update 5
... 17 Repligen Corporation,(Nasdaq: RGEN ) announced today ... Herlihy, Ph.D., will present at the 2008 UBS,Global Life ... EDT at the Grand Hyatt Hotel, 455 Madison Avenue, ... presentation will be available via,Repligen,s website at http://www.repligen.com ...
... 17 /PRNewswire-FirstCall/ - AEterna Zentaris Inc.,(NASDAQ: AEZS ... on,endocrine therapy and oncology, today announced that its ... CA, will present a,company overview at the upcoming ... Tuesday, September 23, 2008 at 3:25 pm (eastern,time), ...
... Coast Oncology to be the first private practice in ... offer state-of-the-art proton radiation ... M.D.,Medical Director, First Coast Oncology, Jacksonville, FL is pleased ... Monarch250(TM),Proton Therapy System from Still River Systems, Inc, in ...
Cached Biology Technology:Repligen to Present at the 2008 UBS Global Life Sciences Conference Wednesday, September 24th, 1:00 p.m. EDT 2Repligen to Present at the 2008 UBS Global Life Sciences Conference Wednesday, September 24th, 1:00 p.m. EDT 3First Coast Oncology to Offer Next Generation Proton Therapy 2First Coast Oncology to Offer Next Generation Proton Therapy 3
... The thermostable dUTPase(pyrococcus fruriosus) maximizes the ... DNA polymerases). It removes contaminating ... dNTP solutions. The presence of ... reaction can prevent dUTP misincorporation by ...
... comes with a shutter (controlled via a TTL ... Deuterium Light Source produces a powerful, stable output ... the light source are available, providing a wavelength ... lamp provides peak-to-peak stability of less than 0.005% ...
... The NOVOstar is an exciting product for ... cell-based assays required the use of expensive ... for scientists in the assay development stage. ... for cell-based assays as well as any ...
... intactness and detects events that dissipate ... Benefits: Fast, simple, and ... and for assaying mitochondria intactness ... for the detection of changes in ...
Biology Products: