Concentrations of halogenated flame retardants and polychlorinated biphenyls in house dust from Lagos, Nigeria.

Autor: Akinrinade, Olumide Emmanuel1,2 (AUTHOR), Stubbings, William A.1 (AUTHOR), Abou-Elwafa Abdallah, Mohamed1 (AUTHOR), Ayejuyo, Olusegun2 (AUTHOR), Alani, Rose2 (AUTHOR), Harrad, Stuart1 (AUTHOR) S.J.Harrad@bham.ac.uk
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Zdroj: Environmental Science: Processes & Impacts. Nov2021, Vol. 23 Issue 11, p1696-1705. 10p.
Abstrakt: Polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and hexabromocyclododecane (HBCDD) are regulated under the Stockholm Convention of the United Nations' Environment Programme; with similar concerns emerging about alternative halogenated flame retardants (alt-HFRs), the use of which is increasing as replacements for PBDEs and HBCDD. While the presence in indoor dust of PCBs, PBDEs, and HBCDDs has been reported previously in a few African locations including Lagos, Nigeria, we are unaware of similar data for alt-HFRs. The present study thus aimed to provide the first information on alt-HFRs in indoor dust in sub-Saharan Africa, and to evaluate the impact of restrictions on the use of PBDEs, HBCDD, and PCBs on their concentrations in house dust in Lagos, Nigeria. Concentrations of ∑8PBDEs, ∑HBCDDs, ∑7alt-HFRs, and ∑8PCBs in 15 samples of dust from homes in Lagos, Nigeria were found to be: 43–810 (median = 300) ng g−1,
Databáze: GreenFILE