| Autor: |
Tommasi Franca, Lyons Daniel M., Pagano Giovanni, Oral Rahime, Thomas Philippe J., Eccles Kristin M., Tez Serkan, Toscanesi Maria, Giarra Antonella, Siciliano Antonietta, Dipierro Nunzio, Gjata Isidora, Guida Marco, Libralato Giovanni, Jaklin Andrej, Buric Petra, Kovacic Ines, Trifuoggi Marco |
| Rok vydání: |
2023 |
| Popis: |
The present study was aimed at identifying geospatial patterns of pollutants including concentrations and toxicity as complex environmental mixtures, in topsoil samples close to petrochemical facilities in the heavily industrialized area of Augusta and Priolo in south-eastern Sicily (Italy). Elemental analysis of soil was conducted by ICP-MS for 23 metals and 16 rare earth elements (REEs). Organic analyses were primarily focused on poly- cyclic aromatic hydrocarbons (PAHs) (16 parent homologs) and total aliphatic hydrocarbons (C10–C40). Topsoil samples were tested for toxicity in multiple bioassay models including: 1) developmental defects and cytogenetic anomalies in sea urchinSphaerechinus granularisearly life stages; 2) growth inhibition of diatomPhaeodactylum tricornutum; 3) mortality in nematodeCaenorhabditis elegans; and 4) induction of mitotic abnor- malities in onionAllium cepa. Samples collected at sites closest to defined petrochemical facilities were highest in select pollutants and correlated with biological effects in different toxicity endpointthe increased level of total REEs in sites closest to petrochemical facilities, suggesting their contributions to identifying petrochemical sources of pollutants to the environment. The combined data obtained in the different bioassays allowed exploration of geospatial patterns of effect in biota as a function of contaminant levels. In conclusion, this study provides consistent data of soil toxicity, metal and REE contamination at Augusta-Priolo sampling sites, and may provide an appropriate baseline for epidemiological studies on high incidences of congenital birth defects in the area and identification of at-risk localities. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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