Navigation Links
Green plants reduce city street pollution up to 8 times more than previously believed
Date:7/18/2012

Trees, bushes and other greenery growing in the concrete-and-glass canyons of cities can reduce levels of two of the most worrisome air pollutants by eight times more than previously believed, a new study has found. A report on the research appears in the ACS journal Environmental Science & Technology.

Thomas Pugh and colleagues explain that concentrations of nitrogen dioxide (NO2) and microscopic particulate matter (PM) both of which can be harmful to human health exceed safe levels on the streets of many cities. Past research suggested that trees and other green plants can improve urban air quality by removing those pollutants from the air. However, the improvement seemed to be small, a reduction of less than 5 percent. The new study sought a better understanding of the effects of green plants in the sometimes stagnant air of city streets, which the authors term "urban street canyons."

The study concluded that judicious placement of grass, climbing ivy and other plants in urban canyons can reduce the concentration at street level of NO2 by as much as 40 percent and PM by 60 percent, much more than previously believed. The authors even suggest building plant-covered "green billboards" in these urban canyons to increase the amount of foliage. Trees were also shown to be effective, but only if care is taken to avoid trapping pollutants beneath their crowns.


'/>"/>

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

Page: 1

Related biology news :

1. Caution needed with new greenhouse gas emission standards
2. Technology deal for next generation production of green whistle
3. A nanoscopic look at the estuarys green algae
4. New study demonstrates the role of urban greenery in CO2 exchange
5. Pasta made from green banana flour a tasty alternative for gluten-free diets
6. Mexican rock heroes trial novel green trading system
7. UCLAs Yi Tang receives Presidential Green Chemistry Challenge Award from EPA
8. Ancient global warming allowed greening of Antarctica
9. Steel-strength plastics -- and green, too!
10. Weizmann Institute solar technology to convert greenhouse gas into fuel
11. Old aerial photos supply new knowledge on glaciers in Greenland
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2017)... 2017 Research and Markets has announced the ... Trends - Industry Forecast to 2025" report to their offering. ... The Global ... of around 8.8% over the next decade to reach approximately $14.21 ... market estimates and forecasts for all the given segments on global ...
(Date:3/22/2017)... 21, 2017 Optimove , provider ... retailers such as 1-800-Flowers and AdoreMe, today announced ... and Replenishment. Using Optimove,s machine learning algorithms, these ... and replenishment recommendations to their customers based not ... of customer intent drawn from a complex web ...
(Date:3/20/2017)... HANOVER, Germany , March 20, 2017 At ... Hamburg -based biometrics manufacturer DERMALOG. The Chancellor came to the ... Japan is this year,s CeBIT partner country. At the largest ... important biometrics in use: fingerprint, face and iris recognition as well as ... ...
Breaking Biology News(10 mins):
(Date:4/20/2017)... ... 20, 2017 , ... NetDimensions appoints Bill Mastin, a learning technology veteran, as ... experience in the learning technologies industry, Mastin joins NetDimensions from the New York office ... (LTG). At LEO, Mastin served as SVP of the North America offices and prior ...
(Date:4/20/2017)... (PRWEB) , ... April 20, 2017 , ... ... light sources for advanced technology applications, announced today that Chief Executive Officer (CEO) ... , SEMI is the global industry association connecting the electronics manufacturing ...
(Date:4/20/2017)... ... April 20, 2017 , ... ... unique intellectual property (IP) sharing and commercialization model. , The Center for Advancing ... main component of this effort is bringing the IP to the attention of ...
(Date:4/20/2017)... HACKENSACK, N.J. and PETACH TIKVAH, Israel ... (NASDAQ: BCLI), a leading developer of adult stem cell technologies ... Chief Executive Officer, will present at the Alliance for Regenerative ... Investor Day on Thursday, April 27, 2017 at 09:40 EDT ... Dr. Ralph Kern , MD, MHSc, Chief Medical Officer ...
Breaking Biology Technology: