Potential of two herbaceous plants to remove three coexisting organic endocrine disruptors from aqueous media

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Abstract

Natural terrestrial and aquatic systems can be polluted with xenobiotic compounds possessing hormone-like activity, commonly known as endocrine disruptors (EDs).among EDs, there are bisphenol a (BPA), a component of plastics, 17α-ethinylestradiol (EE2), present in oral contraceptives, and linuron (LIN), a common herbicide. This work investigated the capacity of seedlings of radish and ryegrass to remove coexisting BPA, EE2 and LIN from three different aqueous media, a water enriched with natural organic matter (NOM) at a concentration of 20 mg/l, a lake water and a river water. BPA, EE2 and LIN were spiked at concentrations of 1, 0.1 and 1 mg/l (ed1,0.1,1), respectively, as well as tenfold higher concentrations(ed10,1,10). Radish was much more efficient than ryegrass, and removed the compounds in the order EE2>BPA>LIN, averagely in the three media, at both EDS concentrations. in particular, with ed1,0.1,1 mix, the highest removal was obtained for EE2 in all media (100%) and the lowest removal for LIN in nom solution (34%). with ed10,1,10 mix, radish removal capacity was maximum for EE2 in lake water (88%) and minimum for LIN in river water (30%). At both ED concentrations, ryegrass removed the compounds in the order BPA>EE2>LIN, averagely in the three media. in particular, with ed1,0.1,1 mix, removal was maximum for EE2 in lake water (73%) and minimum for LIN in nom solution (6%). also with ed10,1,10mix, ryegrass seedlings removed significant amounts of EDS with a maximum for BPA in lake water (58%) and a minimum for LIN in river water (3%).

Autore Pugliese

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  • GATTULLO C.E.;LOFFREDO E.

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Anno di pubblicazione

2014

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ISBN

978-84-697-0747-0

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