Corporate Banner
Satellite Banner
Environmental Analysis
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Forest Service Study Finds Urban Trees Removing Fine Particulate Air Pollution, Saving Lives

Published: Tuesday, June 25, 2013
Last Updated: Tuesday, June 25, 2013
Bookmark and Share
Scientists from U.S. Forest Service and the Davey Institute estimated how much fine particulate matter is removed by trees in 10 cities.

In the first effort to estimate the overall impact of a city’s urban forest on concentrations of fine particulate pollution (particulate matter less than 2.5 microns, or PM2.5), a U.S. Forest Service and Davey Institute study found that urban trees and forests are saving an average of one life every year per city. In New York City, trees save an average of eight lives every year.

Fine particulate air pollution has serious health effects, including premature mortality, pulmonary inflammation, accelerated atherosclerosis, and altered cardiac functions. In a study recently published on-line by the journal Environmental Pollution, researchers David Nowak and Robert Hoehn of the U.S. Forest Service and Satoshi Hirabayashi and Allison Bodine of the Davey Institute in Syracuse, N.Y., estimated how much fine particulate matter is removed by trees in 10 cities, their impact on PM2.5 concentrations and associated values and impacts on human health.

The study, “Modeled PM2.5 Removal by Trees in Ten U.S. Cities and Associated Health Effects,” is available at: http://www.nrs.fs.fed.us/pubs/43676

“More than 80 percent of Americans live in urban areas containing over 100 million acres of trees and forests,” said Michael T. Rains, Director of the Forest Service’s Northern Research Station and Acting Director of the Forest Products Lab. “This research clearly illustrates that America’s urban forests are critical capital investments helping produce clear air and water; reduce energy costs; and, making cities more livable. Simply put, our urban forests improve people’s lives.”

Cities included in the study were Atlanta, Baltimore, Boston, Chicago, Los Angeles, Minneapolis, New York City, Philadelphia, San Francisco, and Syracuse, NY.

Overall, the greatest effect of trees on reducing health impacts of PM2.5 occurred in New York due to its relatively large human population and the trees’ moderately high removal rate and reduction in pollution concentration. The greatest overall removal by trees was in Atlanta due to its relatively high percent tree cover and PM2.5 concentrations.

“Trees can make cities healthier,” Nowak said. “While we need more research to generate better estimates, this study suggests that trees are an effective tool in reducing air pollution and creating healthier urban environments.”

The removal of PM2.5 by urban trees is substantially lower than for larger particulate matter (particulate matter less than 10 microns – PM10), but the health implications and values are much higher. The total amount of PM2.5 removed annually by trees varied from 4.7 metric tons in Syracuse to 64.5 metric tons in Atlanta, with annual values varying from $1.1 million in Syracuse to $60.1 million in New York City. Most of these values were dominated by the effects of reducing human mortality; the average value per reduced death was $7.8 million. Reduction in human mortality ranged from one person per 365,000 people in Atlanta to one person per 1.35 million people in San Francisco.

Researchers used the U.S. Environmental Protection Agency’s BenMAP program to estimate the incidence of adverse health effects, such as mortality and morbidity, and associated monetary value that result from changes in PM2.5 concentrations. Local population statistics from the 2010 U.S. Census were also used in the model. i-Tree, a suite of tools developed by the Forest Service and Davey Institute, was used to calculate PM2.5 removal and associated change in concentrations in the study cities.

The mission of the U.S. Forest Service is to sustain the health, diversity, and productivity of the nation’s forests and grasslands to meet the needs of present and future generations. The agency has either a direct or indirect role in stewardship of about 80 percent of our nation’s forests; 850 million acres including 100 million acres of urban forests where most Americans live. The mission of the Forest Service’s Northern Research Station is to improve people’s lives and help sustain the natural resources in the Northeast and Midwest through leading-edge science and effective information delivery.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,100+ scientific posters on ePosters
  • More than 4,500+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.


Scientific News
New NIH-EPA Research Centers to Study Environmental Health Disparities
Scientists will partner with community organizations to study these concerns and develop culturally appropriate ways to reduce exposure to harmful environmental conditions.
Air Pollution Linked to Heart Disease
10-year project revealed air pollutants accelerate plaque build-up in arteries to the heart.
Following Tricky Triclosan
Antibacterial product flows through streams, crops.
Paper Filter Can Remove Viruses from Water
A new paper filter can purify water from viruses, even the most difficult and contagious.
Changing California Land Uses will Shape Water Demands in 2062
If past patterns of California land-use change continue, projected water needs by the year 2062 will increase beyond current supply.
Chemical Emitted by Trees Can Impact Ozone Levels
Researchers have found that the way that isoprene, a natural hydrocarbon compound emitted from broadleaf deciduous trees, is processed in the atmosphere at night can have a big impact on the ozone in the atmosphere the next day.
A New Sensor to Assess the Biodiversity in the Atmosphere
UPM researchers design a portable autonomous device capable of collecting and assessing bacterial, viral and fungal biodiversity in the air as well as pollen in different urban areas and seasons.
Measuring The Airborne Toxicants Urban Bicyclists Inhale
Researchers analyze breath biomarkers to measure uptake of volatile organic compounds by bicyclists.
Elevated Bladder Cancer Risk in New England and Arsenic in Drinking Water From Private Wells
Researchers have found that drinking water from private wells, may have contributed to the elevated risk of bladder cancer in northern new England.
Detecting Nano Amounts In Environmental Samples
The NanoUmwelt project is developing a technique that can detect nanomaterials in a variety of environmental samples.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,100+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,500+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!