These sites will be within two blocks of the BQE in residential neighborhoods in locations with populations that may be sensitive to poor air quality such as children and the elderly. In addition to local environmental and aesthetic benefits, the project is intended to demonstrate the value of urban forestry to other communities in the region. DEP's Office of Environmental Planning and Assessment provides the planning and management of the project. The public education component will provide Brooklyn School teachers with training and information about urban forestry. Trees and Air Quality Trees and other plants improve air quality by affecting temperature, airflow, and humidity.
Dilution refers to the mixing of good or clean air with polluted air.
As polluted air flows in and around trees, it mixes with air that has been oxygenated by the trees. In the process of absorbing carbon dioxide to use in photosynthesis, plants produce oxygen. Plants intercept particles in the air by trapping them on the tiny hairs and moisture of leaves and stems. These particles stay on the plant until washed away by rain or irrigation. Particles also settle when faster moving air filled with pollutants enters a stand of trees and is forced to slow down.