Scientists Find Houseplants Do Not Purify the Air
Using them to clean indoor air is ineffective.
American scientists believe that houseplants do not possess the air-quality improving ability that they are so often credited with.
Brian Cummings and Michael Waring from Drexel University (USA) found this out by analyzing 12 scientific papers written on the subject over the past 27 years. The results of the study were published in the Journal of Exposure Science & Environmental Epidemiology.
Scientists reviewed 196 experiments conducted earlier and singled out one parameter among their results: the rate of clean air production. In the analyzed experiments, the value of this parameter for one plant fluctuated in the range from 0.0004 to 0.2 cubic meters per hour.
At the same time, for other cleaning methods, such as conventional ventilation, this parameter is much larger and can amount to about 100 cubic meters per hour. To achieve such a rate, it would take from 10 to 1,000 plants per square meter. Scientists believe that achieving clean indoor air with houseplants is probably ineffective.
Earlier, Russian geneticists for the first time grew a plant that glows in the dark.
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