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UC Cooperative Extension | Agricultural Experiment Station
Green Hall of Famer Oki retires after 29-year UC career
UCCE specialist's research prevents water pollution, reduces water use When interviewed to become a University of California Cooperative Extension specialist in environmental horticulture, Lorence “Loren” Oki was asked what kind of...
UC Delivers
Trees and shrubs help clean the air. They absorb carbon dioxide, release oxygen and provide surfaces for the deposition of airborne particles and unhealthful gases such as ozone. Also, water evaporating from tree leaves cools the air and shade from trees cuts energy consumption, reducing the need for air-polluting energy generation. However, there is another side to the story. Some trees and shrubs emit high rates of certain volatile organic compounds (VOC), which react with nitrogen oxides (NOx) and sunlight to form ozone, a ground-level pollutant. Other plants emit very little VOC.
Read about: ANR Research Clarifies Role of Tree Species in Air Pollution | View Other Stories
