Resumo (PT):
Abstract (EN):
Personal care products, an important class of emerging contaminants, have been frequently detected in
different environmental matrices. Included in this category are synthetic musks compounds (SMCs) and
UV-filters. Their occurrence in the coastal environment has been poorly studied. Therefore, this work
aimed to verify whether five coastline plant species (Carpobrotus edulis, Cakile maritima, Medicago
marina, Elymus farctus borealis-atlanticus and Euphorbia paralias) have the ability to accumulate 11 SMCs
(cashmeran, celestolide, phantolide, galaxolide, tonalide, exaltolide, musk moskene, tibetene, ambrette,
xylene and ketone) and 2 organic UVB filters (3-(40
-methylbenzylidene) camphor and octocrylene),
functioning as biosamplers. To accomplish this task, a QuEChERS technique (“Quick, Easy, Cheap,
Effective, Rugged, and Safe”) was employed to extract the target compounds from the plant material
collected in 15 beaches of Matosinhos and Vila Nova de Gaia (Portugal). The resulting extracts were
analysed by gas chromatographyemass spectrometry. Limits of detection ranged from 0.02 ng g1 for
celestolide and tonalide to 1.32 ng g1 for musk ambrette. The obtained recoveries were around 93% and
relative standard deviation was generally less than 15%. SMCs were detected at levels ranging from 1.56
to 350 ng g1 dw and UV-filters from 2.9 to 264 ng g1 dw. Galaxolide and 3-(40
-methylbenzylidene)
camphor were the synthetic musk and UV-filter detected in higher concentrations, respectively.
Plants with higher water content accumulate better SMCs (hottentot-fig), while those with higher lipid
content retain better the UV-filters (sea spurge).
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
7