Assessment of urban air quality in Abidjan in terms of trace metals (copper, lead, zinc) by arborescent vegetation: Case of the species Hibiscus tiliaceus rubra.

Stephane Koffi Kouamé 1, Dobi-Brice Kouadio Kouassi 1, Zoungranan Yacouba 2, *, Edmond Ahoua Sika 3, Tchirioua Ekou 1 and Lynda Ekou 1

1 Department of Chemistry, University NANGUI ABROGOUA, Abidjan, Côte d’Ivoire.
2 Department of Mathematics, Physics and Chemistry, University Peleforo GON COULIBALY, Korhogo, Côte d’Ivoire.
3 Department of Environmental Sciences, University NANGUI ABROGOUA, Abidjan, Côte d’Ivoire.
 
Research Article
World Journal of Advanced Research and Reviews, 2024, 22(02), 744–752
Article DOI: 10.30574/wjarr.2024.22.2.1411
 
Publication history: 
Received on 31 March 2024; revised on 06 May 2024; accepted on 08 May 2024
 
Abstract: 
Urban air quality is closely linked to human activities. Policies aimed at reducing or monitoring this form of pollution therefore have a dual benefit for health and the environment. Biomonitoring of air quality is one possible scientific approach.
In this study, the woody species Hibiscus tiliaceus rubra was used as a biomonitor of air quality in the city of Abidjan. The leaves of the woody species were used to quantify the bioaccumulation of three trace metals: copper, lead and zinc. The assessment was carried out on five main road sections: "Adjamé-Cocody", " Adjamé-Yopougon", "Cocody-Bingerville", abobo-Anyama” and " Adjamé-Plateau".
The results obtained show that the content of these trace metals varies according to the road. High levels of copper and zinc and very low levels of lead were initially found in the leaves of the species. The Adjamé-Cocody axis and the Adjamé-Yopougon axis recorded the highest levels of lead. The Adjamé-Plateau axis remains the least contaminated, with relatively low levels of lead.
 
Keywords: 
Hibiscus tiliaceus rubra; Air pollution; Bioacumulation; Trace Metal Elements
 
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