Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/90544
Author(s): José Avelino Silva
Nuno Ratola
Sara Ramos
Vera Homem
Lúcia Santos
Arminda Alves
Title: An analytical multi-residue approach for the determination of semi-volatile organic pollutants in pine needles
Issue Date: 2015
Abstract: Vegetation (and pine needles in particular) has been widely used as an alternative to other conventional sampling devices to assess the atmospheric presence of semi-volatile organic contaminants (SVOCs). While most analytical procedures developed focus only on one or two chemical classes, this this work intends to establish a multi-component protocol to quantify brominated flame-retardants (BFRs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polynuclear aromatic hydrocarbons (PAHs) and one class of contaminant of emerging concern, the synthetic musks fragrances (SMCs). Pine needles extracts were obtained by ultrasonic solvents extraction (USE), and different cleanup approaches using solid-phase extraction (SPE) employing combinations of sorbents and solvents as well as gel permeation chromatography (GPC) were tested. SPE with alumina followed by GCP yielded the best results, with average recoveries over 80%. The application of the method under field conditions was proven by the analysis of naturally contaminated samples from 3 sites of different potential exposure (remote, rural and urban). The total detected concentrations ranged from 0.45 to 0.87 ng g (1) dry weight (dw) for BFRs, 0.35 to 1.01 ng g (1) (dw) for PCBs, 0.36 to 12.2 ng g (1) (dw) for HCB, 245.7 to 967.8 ng g (1) (dw) for PAHs and 20.7 to 277.5 ng g (1) (dw) for SMCs. This methodology is a viable approach for the simultaneous analysis of five different classes of atmospheric pollutants employing less analytical efforts. Moreover, to the author's best knowledge, this is also the first time vegetation is employed in the detection of SMCs.
Subject: Química analitica, Análise instrumental, Bioclimatologia, Riscos ambientais, Engenharia do ambiente
Analytical chemestry, Instrumental analysis, Bioclimatology, Environmental risks, Environmental engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia do ambiente
Engineering and technology::Environmental engineering
URI: https://hdl.handle.net/10216/90544
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/AGR-CFL/102597/2008/SAFEPINE - Avaliação da contaminação de pinheiros por poluentes emergentes /SAFEPINE
info:eu-repo/grantAgreement/Autoriadade de Gestão do Programa Operacional Regional do Norte/Programas Integrados de IC&DT/NORTE-07-0124-FEDER-000025/(Bio) Chemical Engineering: Multi-Scale Approaches for Sustainable Environment and Health/LEPAE/CEFT - RL2
info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/PEst-C/EQB/UI0511/2013/PROJECTO ESTRATÉGICO - UI 511 - 2013-2014/UI0511
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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