Navigation Links
Gas Engines May Be Dirtier Than Diesels in One Respect
Date:3/11/2012

SUNDAY, March 11 (HealthDay News) -- Gasoline engines produce far more of a particular type of air pollution than diesel engines, according to a new study.

The researchers analyzed air pollution in Los Angeles and were surprised to find that gasoline engines were responsible for most secondary organic aerosols (SOAs), which are tiny particles that can harm human lung and heart health, reduce visibility and affect the climate.

The study confirmed that diesel trucks were used less on weekends than on weekdays, while the use of gasoline-powered vehicles remained nearly constant throughout the week. This led the researchers to expect that weekend levels of SOAs would be lower than weekday levels.

Instead, the researchers found that weekend and weekday levels of SOAs were about the same. This means that gasoline engines are the main source of SOAs, according to the study, slated for publication in the journal Geophysical Research Letters.

"The contribution of diesel to SOA is almost negligible," study leader Roya Bahreini, a research scientist at the Cooperative Institute for Research in Environmental Sciences, said in a journal news release. "Even being conservative, we could deduce from our results that the maximum upper limit of contribution to SOA would be 20 percent."

That means that gasoline engines account for 80 percent or more of SOAs.

"While diesel engines emit other pollutants such as soot and nitrogen oxides, for organic aerosol pollution they are not the primary culprit," said Bahreini, who also works at the U.S. National Oceanic and Atmospheric Administration's Earth System Research Laboratory.

The results suggest that finding ways to reduce SOA levels in emissions from gasoline engines could benefit human health and the environment.

More information

The American Lung Association has more about air pollution and health.

-- Robert Preidt

SOURCE: Geophysical Research Letters, news release, March 2, 2012


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Respect for Muslims Beliefs Would Improve Their Health Care: Study
2. Treat Gasoline With Respect
3. Peppermint earns respect in mainstream medicine
4. Overseas nurses feel their skills are underused and they arent valued or respected
5. Houston Northwest Medical Center Becomes First Hospital in the Southwest Region Designated a Community of Respect™ Partner
6. Teamsters, Religious Leaders Call on Ascension Health to Respect Rights of Workers, Patients and Communities
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Gas Engines May Be Dirtier Than Diesels in One Respect
(Date:2/24/2017)... , ... February 24, 2017 , ... The Smart Machine ... from Oxford University predict that 47 percent of all jobs in the United States ... “smart” and “successful.” The day of the aggressive know-it-all who steamrolls over colleagues is ...
(Date:2/24/2017)... ... February 24, 2017 , ... With ProGlass Prism users now ... . Users have total control over position, rotation, distortion, edge softness, edge blur, chromatic ... Cut Pro X. , With ProGlass Prism users are given the tools and ...
(Date:2/24/2017)... Farifax, VA (PRWEB) , ... February 24, 2017 , ... ... winners for excellence in radiology marketing programs at the annual Building Better ... the Worthington Renaissance Fort Worth Hotel in Fort Worth, Texas. Nine awards are given ...
(Date:2/23/2017)... MA (PRWEB) , ... February 23, 2017 , ... ... and Department of Justice jointly issued a letter to withdraw previous ... accordance with their gender identity. The guidance issued in May 2016 by the ...
(Date:2/23/2017)... ... 2017 , ... Los Angeles-based weight loss surgeon Michael Feiz, M.D., F.AC.S. will ... to Hot,” which will begin airing on February 24, 2017. The show chronicles the ... 2012 reality television series, “Here Comes Honey Boo Boo.” The earlier series from TLC ...
Breaking Medicine News(10 mins):
(Date:2/24/2017)... Following receiving CE Marking in Europe ... AMAR is a major milestone for the country where the device was developed ... market in Israel   ... inclusion in the National Health Basket , Israel , ... E-QURE Corp. (OTCQB: EQUR), a leader in medical devices for the treatment of advanced wound ...
(Date:2/24/2017)... Research and Markets has announced the addition of the ... their offering. ... research Dry eye Drugs Price Analysis and Strategies - 2016, provides drug ... research answers the following questions: What are ... are they positioned in the Global Dry eye market? ...
(Date:2/24/2017)... Feb. 23, 2017 The U.S. Food ... PhenoTest BC Kit, performed on the Pheno System. ... that cause bloodstream infections and provide information about ... to (antibiotic sensitivity). The test also reduces the ... important information, which can guide antibiotic treatment recommendations ...
Breaking Medicine Technology: