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:8/4/2015)... 2015 Research ... the addition of the "Digital Forensics ... Sub-Segment (Computer Forensics, Network Forensics, Mobile Device ... Vertical and Region - Global Forecast to ... By Component (Hardware, Software, and Service), ...
(Date:8/3/2015)... , Aug. 3, 2015 Synaptics, Inc. (Nasdaq: ... solutions, today announced that members of the executive management ... Pacific Crest Global Technology Leadership Forum on Tuesday, August ... will be held at the Sonnenalp Resort in ... presentation may include forward-looking information. An audio webcast of ...
(Date:7/31/2015)... 2015 BGI llevará a cabo la 10ª Conferencia ... 25 de octubre de 2015, en Shenzhen, ... décimo aniversario este año. Desde su inauguración en 2006, ... anuales más influyentes del mundo en los campos de ... más dinámicas, entusiastas y amenas. ICG-10 se ...
Breaking Biology News(10 mins):Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3
... contrast to the exhaustive research into venom produced by ... remain something of a mystery. Now, a study of ... BMC Evolutionary Biology , has catalogued the presence ... Jeremy Wright, from the University of Michigan, ...
... to an analysis of statewide data taken from 1998-2001, women ... more than three times likely to report they were discriminated ... pregnancy and delivery. In addition, reporting of insurance-based ... Medicaid coverage, and four times more likely among women who ...
... The electroencephalogram (EEG) is widely used by physicians and ... disorders. However, it has remained largely unknown whether the ... what is happening inside the brain. Scientists at the ... have now found a crucial link between the activity ...
Cached Biology News:Lower income women report more insurance-based discrimination during pregnancy, delivery 2How to read brain activity? 2
(Date:9/1/2015)... 1, 2015 The American Brain Tumor Association ... its Discovery Research Grant program. LOIs are due no ... CDT. Discovery Grants are one-year, $50,000 grants ... to change current diagnostic or treatment paradigms for adults ... novel research at its earliest stages, in the hopes ...
(Date:9/1/2015)... , Sept. 1, 2015 ... cancer death in American men. One in ... and 233,000 new cases are diagnosed annually. That ... are using a powerful new technique, MRI Fusion ... and large cancer lesions, treating only the affected ...
(Date:9/1/2015)... Eau Claire, WI (PRWEB) , ... September 01, 2015 , ... ... 2015), Alexi Venice expertly transports the reader to a not-so-distant future faced with an ... McCallan, a beautiful professional who overcomes personal tragedy to enter the world of counterterrorism, ...
(Date:9/1/2015)... ... September 01, 2015 , ... VetStem Biopharma ... Equine cervical facet joint problems can be caused by injuries and abnormalities of ... of nerve roots or of the spinal cord itself. This can manifest itself ...
Breaking Biology Technology:American Brain Tumor Association Seeks Innovative Concepts For Discovery Research Grants 2September Is Prostate Cancer Awareness Month 2September Is Prostate Cancer Awareness Month 3September Is Prostate Cancer Awareness Month 4Alexi Venice’s Debut Novel Takes on the Human Testing of a Vaccine for Ebola and Revenge by an Anti-Big Pharma Terrorist Group in ‘Ebola Vaccine Wars' 2Alexi Venice’s Debut Novel Takes on the Human Testing of a Vaccine for Ebola and Revenge by an Anti-Big Pharma Terrorist Group in ‘Ebola Vaccine Wars' 3VetStem Biopharma Announces New Clinical Research Program for Equine Cervical Facet Joint Disease 2VetStem Biopharma Announces New Clinical Research Program for Equine Cervical Facet Joint Disease 3
... 12 Varian, Inc.,(NasdaqGS: VARI) has announced that ... breadth and depth of its solutions for analytical ... a booth exhibitor at,Pittcon(R)2009. , ... information online.,And while the current economy may lead ...
... Catalyst Module Development Kit from Eurotech Presented as ... 12 Eurotech Inc., a leading provider of ... Organ Company recently received a Catalyst Module development ... Arrow Electronics. Eurotech delivers Intel Atom -based ...
... The Risk Management and Patient,Safety Institute (RM&PSI) ... calendar. The RM&PSI ( http://www.rmpsi.com ), a ... a national leader in,clinical risk management and patient ... institutions. , The spring ...
Cached Biology Technology:Varian, Inc. Announces Online Experience 2Eurotech Catalyst Module Awarded to Allen Organ Company From Arrow Electronics 2Eurotech Catalyst Module Awarded to Allen Organ Company From Arrow Electronics 3The Risk Management and Patient Safety Institute Announces Winter and Spring 2009 Audio Program Lineup, Annual Conference Dates 2The Risk Management and Patient Safety Institute Announces Winter and Spring 2009 Audio Program Lineup, Annual Conference Dates 3
... DeCypher combines enterprise-scale sequence analysis software with ... bioinformatics analyses. With DeCypher, you can perform searches ... ESTs vs NCBI NT database in under 6 ... to genomic DNA Use HMM analysis ...
...
Mouse polyclonal antibody to ALS2CR8 - amyotrophic lateral sclerosis 2 (juvenile) chromosome region, candidate 8...
...
Biology Products: