Resumen de Chemical and toxicological impact approach of organic contaminants associated to microplastics in urban wastewaters from Las Palmas de Gran Canaria (Spain) and Mahdia (Tunisia)
Hedi Ben Mansour, Ludovit Schreiber, Zoraida Sosa Ferrera, José Juan Santana Rodríguez
It has been reported that microplastics (MPs) can adsorb various environmental chemical contaminants, thereby serving as a sink and source of these associated chemical contaminants and po- tentially changing their toxicity, bioavailability, and fate. Among these compounds different families of so called organic contami- nants of emerging concern (OCECs) attract more and more atten- tion in recent years. For this, we have prospected in this work to identify and quantify OCECs by using Ultra High Performance Liq- uid Chromatography coupled to mass spectromtetry in tandem detector (UHPLC-MS/MS) in the influents of wastewater treat- ment plants (WWTPs) from Las Palmas de Gran Canaria (Spain) and Mahdia (Tunisia). Results indicated the contamination of MPs isolated from infl uent LPA-WWTP by four OCECs and MPs isolated from influent Mahdia-WWTP by three of them. The simultaneous occurrence of multivarious contaminants does not go with con- sequences on the environment and human health. In fact a bat- tery of eucaryotic (comet and micronucleus assays) and procary- otic assay (SOS chromotest) were carried out and showing a high correlation between the level of contamination with OCECs and the level of the DNA damage.
