Natural plants have long been recognized as nature's air purifier, drawing 25% of human-made CO2 emissions from the atmosphere annually. Plants can absorb and catabolize almost any airborne pollutants, although this phytoremediation capacity has been poorly applied indoors. “Indoor plants are typically selected on the basis of their aesthetic features rather than physiological requirements reflecting their capacity to remove air pollutants” (Cell Press Reviews 2018). Despite their simplistic experimental approach, pioneer studies conducted by NASA during the 1980s and more recently by the University of Technology Sydney in 2009 successfully demonstrated that plants are capable of removing airborne pollutants (in particular, CO2 and VOCs). The capacity of plant leaves to exchange gases, and thus to take up any pollutants from indoor air, is limited by physical processes controlling opening and closing of microscopic leaf pores, namely stomata.
Author: Dr. Erfan Haghighi, R&D Manager
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