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  • Title: PCDDs, PCDFs, and PCBs co-occurrence in TiO2 nanoparticles.
    Author: Ctistis G, Schön P, Bakker W, Luthe G.
    Journal: Environ Sci Pollut Res Int; 2016 Mar; 23(5):4837-43. PubMed ID: 26545886.
    Abstract:
    In the present study, we report on the co-occurrence of persistent organic pollutants (POPs) adsorbed on nanoparticular titanium dioxide (TiO2). We report on the finding of polychlorinated dibenzodioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs) on the surface of commercially available TiO2 nanoparticles, being formed during the fabrication process of the TiO2. Thereby, the samples comprise PCBs with higher congener numbers or, in the absence of PCBs, a high concentration of PCDDs and PCDFs. This new class of POPs on an active catalytic surface and the great range of applications of nanoparticular TiO2, such as in color pigments, cosmetics, and inks, give rise to great concern due to their potential toxicity.
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