Navigation Links
Beetle-infested pine trees contribute more to air pollution and haze in forests
Date:5/23/2012

The hordes of bark beetles that have bored their way through more than 6 billion trees in the western U.S. and British Columbia since the 1990s do more than damage and kill stately pine, spruce and other trees. A new study finds that these pests can make trees release up to 20 times more of the organic substances that foster haze and air pollution in forested areas. It appears in ACS' journal Environmental Science & Technology.

Kara Huff Hartz, Gannet Hallar and colleagues explain that western North America is experiencing a population explosion of mountain pine beetles, a type of bark beetle that damages and kills pines and other trees. The beetles bore into the bark of pine trees to lay eggs. Gases, called volatile organic compounds (VOCs), which act as defense mechanisms against the beetles, are released from the bore holes. VOCs, however, also contribute to the smog and haze that obscures views of natural landscapes in U.S. National Parks and other nature areas where tourists gather in the summertime. To determine exactly how beetle attacks affect the atmosphere, the researchers measured VOC levels in the air near healthy and infected pine trees.

They found that beetle-infested trees release up to 20 times more VOCs than healthy trees near the ground surface. The predominant type of VOC was a monoterpene called -phellandrene. The data suggest that the bark beetle epidemic in the western U.S. could have led to higher monoterpene concentrations in the air that can contribute to haze, which can harm human health, reduce visibility and impact climate, say the researchers.


'/>"/>
Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Page: 1

Related biology news :

1. Shade trees can protect coffee crops
2. Diversity of trees in Ecuadors Amazon rainforest defies simple explanation
3. Urban trees enhance water infiltration
4. Forest inventories in Oregon include more than trees
5. Forest inventories in California include more than trees
6. Flame retardants prove ineffective on fresh-cut Christmas trees
7. Flame retardants prove ineffective on fresh-cut Christmas trees
8. Trees wont stop tsunamis, scientists warn
9. Organic plant waste proves effective weed control for citrus trees
10. California study shows shade trees reduce summertime electricity use
11. Study finds hemlock trees dying rapidly, affecting forest carbon cycle
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/27/2014)... In one of the largest prevalence studies to date, ... genotype prevalence estimates for the hepatitis C virus (HCV). ... Association for the Study of Liver Diseases, indicate that ... 83 million patients infected of which one-third reside in ... cases, is the next most prevalent, followed by genotypes ...
(Date:7/27/2014)... RESEARCH UK scientists at Barts Cancer Institute have found ... cancer therapy significantly more effective, according to research published ... Barts Cancer Institute, part of Queen Mary University of ... kinase (FAK), signals the body to repair itself after ... DNA. When the researchers removed FAK from blood vessels ...
(Date:7/25/2014)... Before the colonial era, 100,000s of people lived on ... cultures manipulated fire to control the availability of plants ... tribes continue to use fire to maintain desired habitat ... the U.S. Forest Service,s Pacific Southwest Station, will lead ... National Wildfire Refuge during the Ecological Society of America,s ...
Breaking Biology News(10 mins):Hepatitis C virus genotype 1 is most prevalent worldwide 2New drug target can break down cancer's barrier against treatment 2Fire ecology manipulation by California native cultures 2Fire ecology manipulation by California native cultures 3
... the University of Maryland Center for Environmental Science ... a lack of predators and competitors was the ... dogfish observed in Southern New Englands Georges Bank ... 1980s. In an article appearing in the ...
... a new environment while others do not" Scientists from ... headway on this question after analyzing how fast cane ... 70 years of data on toad presences collected since ... regions of Australia at dramatically divergent rates. These variable ...
... Arenas, Chile, on the tip of South America, to spend ... Southern Ocean. Here they hope to make groundbreaking measurements to ... and sea, and vice-versa. The cruise, ... the greenhouse gas carbon dioxide moves between the ocean and ...
Cached Biology News:Researchers offer new theory for dogfish and skate population outburst on George's Bank 2Voyage to Southern Ocean aims to study air-sea fluxes of greenhouse gases 2
(Date:7/28/2014)... YORK , July 28, 2014  David ... ConvergeHEALTH by Deloitte , has been elected ... Interchange Standards Consortium, a non-profit working to establish ... data, particularly as it relates to electronic health ... continue CDISC,s mission of collaborating with organizations across ...
(Date:7/28/2014)... July 28, 2014 It’s a hard truth: ... benefits to further their post-secondary education are failing to obtain ... released this year. And according to an analysis by ... is veteran students’ uninformed choice of college majors, which leads ... of the study: Some 51.7 percent of post-9/11 veterans using ...
(Date:7/28/2014)... DUBLIN , July 28, 2014 Research ... "Global Particle Size Analysis Market 2014-2018" report to their ... Particle size analysis is a technique used to determine ... powder or liquid. It is crucial to analyze the size ... material. Therefore, particle size analysis is performed to determine the ...
(Date:7/25/2014)... 25, 2014 Amgen (NASDAQ: AMGN ... a $0.61 per share dividend for the third quarter ... 5, 2014, to all stockholders of record as of ... About Amgen Amgen is committed to unlocking ... illnesses by discovering, developing, manufacturing and delivering innovative human ...
Breaking Biology Technology:ConvergeHEALTH by Deloitte's David Hardison Named Chairman of the Clinical Data Interchange Standards Consortium 2ConvergeHEALTH by Deloitte's David Hardison Named Chairman of the Clinical Data Interchange Standards Consortium 3Resume Place: To Choose the Best College Majors, Veterans Need Early Career Counseling, Data Shows 2Resume Place: To Choose the Best College Majors, Veterans Need Early Career Counseling, Data Shows 3Resume Place: To Choose the Best College Majors, Veterans Need Early Career Counseling, Data Shows 4Global Particle Size Analysis Market 2014-2018 2Amgen Announces 2014 Third Quarter Dividend 2Amgen Announces 2014 Third Quarter Dividend 3
... today announced the receipt of a two-year Small Business ... the National Institute on Aging, National Institutes of Health ... antibodies targeting tau protein oligomers in the development of ... be screened at the Michigan High Throughput Screening Center ...
... Wound Management Technologies, Inc., (OTC Bulletin Board: ... solutions, announced today that its President, Deborah Jenkins Hutchinson, ... product, CellerateRX®, recent strategic developments, and its product pipeline ... be held at the JW Marriott Marquis Miami on ...
... a way to overcome one of the main limitations of ... Everyone who has had an ultrasound, including most pregnant women, ... of the limits to the detail obtainable with sonography is ... dictate that the smallest objects you can "see" are about ...
Cached Biology Technology:Oligomerix, Inc. Awarded Phase II NIH Grant to Discover Novel Drugs for Alzheimer's Disease 2Wound Management Technologies to Present at LifeTech Capital Miami Medical Investors Conference 2Novel metamaterial vastly improves quality of ultrasound imaging 2