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Phthalates: environmental pollutants detected in leaf epicuticular wax of Avicennia schaueriana and Rhizophora mangle from a mangrove ecosystem

ABSTRACT This study aimed to investigate the accumulation of phthalates in the leaf epicuticular wax of Avicennia schaueriana and Rhizophora mangle. Leaves were collected from plants situated in three mangroves around Sepetiba Bay, Rio de Janeiro state, Brazil. Dibutyl phthalate (DBP) and di-n-octyl phthalate (DnOP) were detected in higher content in A. shaueriana leaf wax (44.26%) and in R. mangle leaves at 34.43%. A high incidence of plastic residue pollutants in leaf epicuticular wax of these two mangrove species most likely results from absorption from substrate, water or air.