A bibliometric analysis of pre- and post-Stockholm Convention research publications on the Dirty Dozen Chemicals (DDCs) in the African environment.

Autor: Olisah C; Department of Botany, Institute for Coastal and Marine Research (CMR), Nelson Mandela University, Port Elizabeth, South Africa. Electronic address: olisah.chijioke@gmail.com., Adeola AO; Department of Chemical Sciences, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria; Department of Chemical Sciences, University of Johannesburg, Doornfontein, 2028, South Africa., Iwuozor KO; Department of Pure & Industrial Chemistry, Nnamdi Azikiwe University, Awka, Nigeria., Akpomie KG; Department of Chemistry, University of the Free State, Bloemfontein, 9300, South Africa; Department of Pure & Industrial Chemistry, University of Nigeria, Nsukka, Nigeria., Conradie J; Department of Chemistry, University of the Free State, Bloemfontein, 9300, South Africa., Adegoke KA; Department of Chemical Sciences, University of Johannesburg, Doornfontein, 2028, South Africa., Oyedotun KO; Department of Physics, Institute of Applied Materials, SARChI Chair in Carbon Technology and Materials, University of Pretoria, Pretoria, 0028, South Africa., Ighalo JO; Department of Chemical Engineering, Nnamdi Azikiwe University, P.M.B, 5025, Awka, Nigeria., Amaku JF; Department of Chemistry, Michael Okpara University of Agriculture, Umudike, Nigeria.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2022 Dec; Vol. 308 (Pt 2), pp. 136371. Date of Electronic Publication: 2022 Sep 08.
DOI: 10.1016/j.chemosphere.2022.136371
Abstrakt: Persistent organic pollutants (POPs) are toxic chemicals that stay in the environment for a long time. To address the toxicity issues, global nations, including 53 African countries, ratified the Stockholm Convention to minimize or eliminate the production of 12 POPs known as the "Dirty Dozen". However, these Dirty Dozen Chemicals (DDCs) still exist in significant concentration in the African environment, prompting numerous research to investigate the level of their occurrences. Here, we conducted a bibliometric analysis to examine the publication trends in DDCs-related research in Africa using articles published between 1949 and 2021 from the Web of Science and Scopus databases. A total of 884 articles were published within the survey period, with a publication/author and author/publication ratio of 0.36 and 2.76, respectively. South Africa ranked first in terms of number of publications (n = 133, 15.05%), and total citations (n = 3115), followed by Egypt (n = 117), Nigeria (n = 77), USA (n = 40), and Ghana (n = 38). Research collaboration was relatively high (collaboration index = 2.88). The insignificant difference between the theoretical and observed Lotka's distribution indicates Lotka's law does not fit the DDC literature. An annual growth rate of 0.57% implies that a substantial increase of articles in years to come is not expected. More research programs should be established in other African countries to measure up to South Africa's supremacy. This is critical in order to provide a basis for effective compliance to the Stockholm Convention on POPs in Africa.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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