Air Pollution Tolerance Index : A Part from the Book Chapter : A Review of Air Purification by Indoor and Outdoor Plants

Natural air purification

“The use of Plant-based systems to lower the concentration or change the bioavailability of pollutants in soil or water is commonly referred to as Phytoremediation”. Plants are the healthier remedy for air pollution as they absorb carbon dioxide for photosynthesis and release oxygen. Plants can also remove the pollutants like aldehydes, hydrocarbons, formaldehyde, and other pollutants. It is the best method to conserve nature from pollution by natural means and is widely accepted as a cost-effective environmental restoration technology.

This review paper focuses on the plants that improve the air quality and purify air. Air pollution can be reduced using phytoremediation by knowing the right plants to remove the pollutants. The present study, mainly focussed on the role of selected indoor and outdoor plants in air purification, removal of air pollutants and the index of Air Pollution Tolerance Index (APTI).

Author(s) Details:

Manju Madhavan
Department of Botany, St. Mary’s College, Thrissur, 680 020, India.

Abisha, AV
Department of Botany, Vimala College (Autonomous), Thrissur, 680 009, India.

Leen Babu
Department of Botany, Vimala College (Autonomous), Thrissur, 680 009, India.

Liyana K
Department of Botany, Vimala College (Autonomous), Thrissur, 680 009, India.

Sanjana Chacko
Department of Botany, Vimala College (Autonomous), Thrissur, 680 009, India.

Soniya A
Department of Botany, Vimala College (Autonomous), Thrissur, 680 009, India.

Sheeja T Tharakan
Department of Botany, Vimala College (Autonomous), Thrissur, 680 009, India.


Also See : The Main Goal of this Review : A Part from the Book Chapter : Microplastic Exposure to Infants


Recent Global Research Developments in Utilizing Indoor Plants to Remove Volatile Organic Pollutants

 “Phytoremediation potential of indoor plants in reducing air pollutants”:

  • This review article explores how indoor plants can improve indoor air quality (IAQ) by absorbing, adsorbing, assimilating, or reducing air pollutants.
  • Notable plant species include Ficus benjamina, Chlorophytum comosum, and Draceana.
  • The efficiency of pollutant removal depends on factors like leaf size, thickness, photosynthetic activity, and the specific plant part involved (roots, leaves, wax, cuticle, stomata).
  • Using indoor plants is a cost-effective and eco-friendly method for creating a healthier indoor environment [1].

“Phytoremediation for the indoor environment: a state-of-the-art review”:

  • This comprehensive review covers both active and passive phytoremediation.
  • It discusses the specific chemical removal efficiency of different systems over the last decade [2].

“The phytoremediation of indoor air pollution: a review”:

  • Examines the capacity of potted plants to filter indoor pollutants, particularly volatile organic compounds (VOCs).
  • Numerous chamber experiments evaluate ornamental plants’ capability to improve indoor air quality [3].

“Phytoremediation of common indoor air pollutants”:

  • Discusses plant types used for phytoremediation and removal mechanisms.
  • Routes include aerial parts of plants, growth media, and root-associated microorganisms [4].

References

  1. Ravindra K and Mor S (2022) Phytoremediation potential of indoor plants in reducing air pollutants. Front. Sustain. Cities 4:1039710. doi: 10.3389/frsc.2022.1039710
  2. Matheson, S., Fleck, R., Irga, P.J. et al. Phytoremediation for the indoor environment: a state-of-the-art review. Rev Environ Sci Biotechnol 22, 249–280 (2023). https://doi.org/10.1007/s11157-023-09644-5
  3. Irga, P.J., Pettit, T.J. & Torpy, F.R. The phytoremediation of indoor air pollution: a review on the technology development from the potted plant through to functional green wall biofilters. Rev Environ Sci Biotechnol 17, 395–415 (2018). https://doi.org/10.1007/s11157-018-9465-2
  4. Teiri, H., Hajizadeh, Y. & Azhdarpoor, A. A review of different phytoremediation methods and critical factors for purification of common indoor air pollutants: an approach with sensitive analysis. Air Qual Atmos Health 15, 373–391 (2022). https://doi.org/10.1007/s11869-021-01118-3

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