The occurrence of selected endocrine-disrupting chemicals in water and sediments from an urban lagoon in Southern Italy


Endocrine disrupting chemicals (EDCs) are agents able to exert perturbation toward the endocrine system via a broad array of signalling pathways. Some EDCs are released into the environment as a result of antropogenic activities. Analytical surveillance plays a critical role in investigating the prevalence of such chemicals in environmental samples. A study was carried out in a lagoon in Southern Italy, a water basin relates to the sea through a mouth channel, making this water body a “dynamic environment”. The screening of fourteen EDCs in surface waters and sediments, includes a fast and cost-effective sample preparation, based on a solid-liquid (sediments) and liquid-liquid (surface waters) extraction and a chromatographic analysis by liquid chromatography tandem UV and fluorescence detection. Only four chemicals out the fourteen investigated EDCs were detected in both matrices with a frequency higher than 60%. The average concentrations of the single EDC were higher in sediments (730 – 155.000 ng Kg-1 dw) than in surface waters (132 – 28.000 ng L-1 ). Limited to the assayed EDCs, the ecosystem has a low risk regarding to the conservation of biodiversity of the animal species living thereby, since the total estrogenic activity does not exceed 1 ng L- 1 .

Authors: Giacomo Russo, Sonia Laneri, Ritamaria Di Lorenzo, Luciano Ferrara, Lucia Grumetto
; Full Source: Water environment research : a research publication of the Water Environment Federation 2021 Apr 1. doi: 10.1002/wer.1566.