Navigation Links
Researchers pinpoint how trees play role in smog production
Date:4/25/2013

After years of scientific uncertainty and speculation, researchers at the University of North Carolina at Chapel Hill show exactly how trees help create one of society's predominant environmental and health concerns: air pollution.

It has long been known that trees produce and emit isoprene, an abundant molecule in the air known to protect leaves from oxygen damage and temperature fluctuations. However, in 2004, researchers, contrary to popular assumptions, revealed that isoprene was likely involved in the production of particulate matter, tiny particles that can get lodged in lungs, lead to lung cancer and asthma, and damage other tissues, not to mention the environment.

But exactly how was anybody's guess.

Jason Surratt, assistant professor of environmental sciences and engineering at the Gillings School of Global Public Health, now reveals one mechanism by which isoprene contributes to the production of these tiny, potentially health-damaging particles.

The study found that isoprene, once it is chemically altered via exposure to the sun, reacts with man-made nitrogen oxides to create particulate matter. Nitrogen oxides are pollutants created by cars, trucks, aircrafts, coal plants and other large scale sources.

"The work presents a dramatic new wrinkle in the arguments for reducing man-made pollutants worldwide," said Surratt, whose work was published this month in the Proceedings of the National Academy of Sciences. "Isoprene evolved to protect trees and plants, but because of the presence of nitrogen oxides, it is involved in producing this negative effect on health and the environment."

"We certainly can't cut down all the trees," Surratt adds, "but we can work on reducing these man-made emissions to cut down the production of fine particulate matter."

With the precise mechanism now revealed, researchers can plug it into air quality models for better predicting episodes of air pollu
'/>"/>

Contact: Thania Benios
thania_benios@unc.edu
919-962-8596
University of North Carolina at Chapel Hill
Source:Eurekalert

Page: 1 2

Related biology news :

1. CNIO researchers capture the replication of the human genome for the first time
2. Researchers abuzz over caffeine as cancer-cell killer
3. An important discovery in breast cancer by IRCM researchers
4. UCLA researchers find nanodiamonds could improve effectiveness of breast cancer treatment
5. Clues to heart disease in unexpected places, Temple researchers discover
6. BUSM researchers identify novel approach to study COPD and treatment efficacy
7. Researchers call for marine observation network
8. Biofilms help Salmonella survive hostile conditions, Virginia Tech researchers say
9. U-M researchers find new way to clear cholesterol from the blood
10. Dartmouth researchers find there is no single sexy chin
11. Researchers design drug to restore cell suicide in HPV-related head and neck cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/19/2014)... biology professor will study multifunctional and specialized spinal ... a National Science Foundation grant in the amount ... Berkowitz, professor in the Department of Biology, OU ... the differences between the multifunctional and specialized spinal ... use and what connections they make. Berkowitz ...
(Date:9/19/2014)... are a species which over thousands of years has adapted ... a substance that makes the cold dangerous for you. , ... albidus , and the cold provoking substance, called nonylphenol, comes ... Nonylphenol is suspected of being a endocrine disruptor, but when ... the worm,s ability to protect the cells in its body ...
(Date:9/19/2014)... regulate their symbiotic relationship with soil bacteria by ... plant structure from leaves into the roots to ... roots. This collaborative study was conducted by researchers ... Graduate University for Advanced Studies (SOKENDAI), and the ... , Legumes, an important plant family which ...
Breaking Biology News(10 mins):Environmental pollutants make worms susceptible to cold 2Environmental pollutants make worms susceptible to cold 3For legume plants, a new route from shoot to root 2
... are known for their almost uncanny ability to detect ... have traced the origin of those electrosensory powers to ... to many head and facial features in humans. , ... the current edition of Evolution & Development, identifies neural ...
... men having a heart attack drove themselves to hospital and only ... the latest Journal of Advanced Nursing. , The study, ... teaching hospitals in Dublin, Southern Ireland, also found that it took ... departments after their symptoms first started. But only one per cent ...
... the University of New Hampshire campus, David Berlinsky, assistant professor ... black sea bass circle slowly in the dim light. The ... College of Life Sciences and Agriculture, and home to Berlinsky's ... menus, but wild populations of the fish are in decline ...
Cached Biology News:UF scientists trace origin of shark's electric sense 2UF scientists trace origin of shark's electric sense 3One in 14 men having a heart attack drive themselves to hospital 2One in 14 men having a heart attack drive themselves to hospital 3Uncovering sex-change secrets of black sea bass 2
(Date:9/18/2014)... Research and Markets has ... Industry Report 2014" report to their offering. ... 2014 is a professional and in-depth study on ... The report provides a basic overview ... industry chain structure. The N-acetylcysteine market analysis is ...
(Date:9/18/2014)... 2014 Research and Markets has ... (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends ... The global companion diagnostics market is ... 2014 to 2019. Factors such as rising need for ... diagnostics by the pharmaceutical industry, support from regulatory authorities, ...
(Date:9/18/2014)... ST. LOUIS , Sept. 18, 2014  U.S. ... portfolio by signing an exclusive license for technology developed ... to control gene expression in plants, including for applications ... species. The technology was developed under ... science officer at Kultevat and former president of the ...
(Date:9/18/2014)... 2014  Neogen Corporation (Nasdaq: NEOG ) ... agreement with Merck Animal Health to market Neogen,s Igenity ... Igenity Dairy Heifer Program consists of genomic tests that ... potential of replacement dairy heifers. The genomic tests can ... is an excellent tool in the decision-making process for ...
Breaking Biology Technology:Global N-acetylcysteine Industry Report 2014 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3Kultevat obtains license of gene switch technology 2Merck Animal Health to market Neogen's dairy genomic program 2
... woundcare division of,Insense Ltd., today announced it has received ... Oxyzyme product in the treatment of,difficult and chronic wounds. ... one of the world,s leading wound care specialists, in ... The announcement was made at,the 3rd Congress of the ...
... June 6 Inverness Medical,Innovations, Inc. (Amex: IMA ... for the consumer and professional markets, today,announced that it ... & Medical Technology Conference being held June 11-12, 2008,at ... Jon Russell, Vice President,Finance, will present on Thursday, June ...
... June 6 DURECT Corporation,(Nasdaq: DRRX ) announced today that ... New York, NY., -- Needham & Company,s ... June 12th at 11:30 a.m. EDT. -- Leerink Swann,s Pain ... 12:45 p.m. EDT. -- Jefferies, 2nd Annual Healthcare Conference on ...
Cached Biology Technology:Revolutionary Healing Technology for Treating Difficult and Chronic Wounds Approved by Health Canada 2
HP 1 alpha Immunogen: Synthetic peptide between amino acids 1-100 of the human HP 1 alpha protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
... subcloning of gene in baculoviral expression ... and plaque purification of ten clones, ... for one clone, protein expression and ... culture. Expected yield and timeline: 1-4 ...
... Custom Synthesis Service provides you ... to knockdown any gene. We ... base pairs with terminal dT ... other lengths of your choice. ...
EDG-1 Western blot control Source: Cell Lysate Application: Western Blotting Control...
Biology Products: