Indoor Plants Can Significantly Reduce Gasoline Fumes, Study Shows
Researchers from the Sydney University of Technology, teaming up with Ambius, report that indoor greenery can dramatically cut toxic gasoline fumes that have links to cancer. The findings were shared on the partner organization’s website.
In particular, a green wall composed of a diverse mix of common houseplants proved highly effective at removing dangerous pollutants from indoor air. In tests, as much as 97 percent of the most toxic compounds were reduced within an eight‑hour period.
Indoor environments often exhibit poorer air quality than outdoor spaces, which can impact both mental and physical well‑being. Benzene, a well known contaminant that can seep indoors from street activity, stands out as one of the most hazardous contributors to indoor pollution.
Exposure to gasoline fumes can irritate the lungs, trigger headaches, and cause nausea. Longer exposure is associated with a higher risk of cancer, asthma, and other chronic health issues.
In a controlled room setup, researchers measured benzene levels and found that plants do more than simply capture the most dangerous pollutants. Benzene itself was absorbed more quickly than many less harmful substances such as alcohol. Importantly, the rate of toxin removal increased as the air carried more toxins, indicating a responsive, adaptive process. As one expert observed, plants adjust to the conditions in which they grow, influencing how effectively they purify the air.
Overall, the study underscores the potential of green walls and indoor plant arrangements to improve air quality in homes, offices, and other spaces. While consumer air quality improvements depend on several factors, including plant selection, layout, and ventilation, the results offer a practical and natural approach to reducing exposure to harmful fumes. Continued research will help clarify how different plant varieties perform under varying conditions and how best to design spaces for maximum benefit.
These findings align with a broader interest in healthier indoor environments, where simple, accessible solutions can complement mechanical ventilation and filtration systems. The researchers emphasize that plants are a supplementary measure rather than a sole solution, yet their impact on air chemistry appears meaningful in real-world settings.
In summary, adding a well‑chosen green wall or a thoughtful assortment of indoor plants may contribute to lower benzene levels and other toxic compounds, improving comfort and health for occupants. The evidence points to a practical benefit from nature inside built environments, supported by ongoing investigation into the mechanisms behind plant‑driven air purification.
Attribution: Findings reported by researchers from the Sydney University of Technology and Ambius, supported by subsequent analyses and institutional commentary.