Special Issue on Air Pollution and its Impact in South and Southeast Asia (V)

Triratnesh Gajbhiye1,2, Sudhir Kumar Pandey  1, Ki-Hyun Kim This email address is being protected from spambots. You need JavaScript enabled to view it.3 

1 Department of Botany, Guru Ghasidas Vishwavidyalaya (a central University), Bilaspur, C.G., 495009, India
2 Department of Botany, Government Shankar Sao Patel College Waraseoni, M.P., 481331, India
3 Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, Korea 


Received: March 24, 2022
Revised: June 2, 2022
Accepted: July 4, 2022

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.4209/aaqr.220050  

Cite this article:

Gajbhiye, T., Pandey, S.K., Kim, K.H. (2022). Foliar Uptake of Toxic Metals Bound to Airborne Particulate Matter in an Urban Environment. Aerosol Air Qual. Res. 22, 220050. https://doi.org/10.4209/aaqr.220050


  • Foliar dust, leaf, road dust, and soil samples were analyzed for Pb, Cd, and Cu for two years.
  • The metal accumulation of leaves was examined on the monthly, seasonal and annual basis.
  • PM bound toxic metals in leaves come from airborne route in case of both the target plant species.
  • Both plants can be used as management tools for PM bound toxic metal pollution in urban environment.


In this research, the foliar uptake patterns of three toxic metals (Pb, Cd, and Cu) bound to airborne particulate matter (PM) were investigated using two evergreen tree species (Senna siamea and Alstonia scholaris) at six different locations (two residential, traffic, commercial, and industrial) plus one control site in a subtropical urban environment. The concentrations of Pb, Cd, and Cu were measured from foliar dust, leaf, road dust, and soil samples collected from the target sites over two consecutive years. Their temporal variations in leaves were examined at monthly, seasonal, and annual scales. The data were evaluated statistically by One-way Analysis of variance ANOVA and correlation analysis along with enrichment factor (EF). There were significant variations on the monthly as well as the seasonal basis. Accordingly, PM-bound toxic metals in leaves come from an airborne route. In addition, leaves of S. siamea showed a moderately improved accumulation pattern relative to A. scholaris. This study suggests that these plants can be used efficiently as basic tools to assess the pollution and associated behavior of PM-bound toxic metals in an urban environment.

Keywords: Air pollution, Anthropogenic activity, Leaf accumulation, Toxic metals, biomonitoring

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