Research shows importance of roadside tree lines

These trees are helping to decrease urban air pollution. PHOTO by Guy Kramer
These trees are helping to decrease urban air pollution. PHOTO by Guy Kramer

New research shows that trees planted along a city street screen residents from tiny particles that pollute urban air. Tree leaves can capture more than 50% of the particulate matter that’s a prime component of urban pollution and a trigger for disease.

Researchers want to understand how trees capture particles so that urban planners might eventually take advantage of these natural tools for mitigating pollution. Researchers at Lancaster University, in the U.K., wanted to get some numbers from a real-life situation that they could feed into the models, so they decided to study a row of eight houses without a tree screen on a busy street in Lancaster. From ACTrees http://actrees.org/

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