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Title

Priority and emerging organic microcontaminants in three Mediterranean river basins: Occurrence, spatial distribution, and identification of river basin specific pollutants

AuthorsKöck-Schulmeyer, Marianne; Ginebreda Martí, Antoni CSIC ORCID; Petrovic, Mira CSIC ORCID; Giulivo, Monica; Aznar-Alemany, Òscar CSIC; Eljarrat, Ethel CSIC ORCID ; Valle-Sistac, Jennifer; Molins-Delgado, Daniel; Díaz-Cruz, M. Silvia CSIC ORCID; Monllor-Alcaraz, Luis Simón; Guillem-Argiles, Nuria; Martínez, Elena CSIC; López de Alda, Miren CSIC ORCID ; Llorca, Marta CSIC ORCID; Farré, Marinella CSIC ORCID; Peña, Juan Manuel; Mandaric, Ladislav; Pérez, Sandra; Majone, Bruno; Bellin, Alberto; Kalogianni, Eleni; Skoulikidis, Nikolaos T. H.; Milačič, Radmila; Barceló, Damià CSIC ORCID
KeywordsMediterranean basins
Emerging contaminants
Water pollution
Adige
Evrotas
Sava
Risk assessment
Prioritization
River basin specific pollutants
Issue Date1-Feb-2021
PublisherElsevier
CitationScience of the Total Environment 754: 142344 (2021)
AbstractThere is a worldwide growing use of chemicals by our developed, industrialized, and technological society. More than 100,000 chemical substances are thus commonly used both by industry and households. Depending on the amount produced, physical-chemical properties, and mode of use, many of them may reach the environment and, notably, the aquatic receiving systems. This may result in undesirable and harmful side-effects on both the human and the ecosystem's health. Mediterranean rivers are largely different from Northern and Central European rivers in terms of hydrological regime, climate conditions (e.g. air temperature, solar irradiation, precipitation), and socio-economics (e.g. land use, tourism, crop types, etc.), with all these factors leading to differences in the relative importance of the environmental stressors, in the classes and levels of the pollutants found and their environmental fate. Furthermore, water scarcity might be critical in affecting water pollution because of the lowered dilution capacity of chemicals. This work provides raw chemical data from different families of microcontaminants identified in three selected Mediterranean rivers (the Sava, Evrotas, and Adige) collected during two sampling campaigns conducted in 2014 and 2015 in three different matrices, namely, water, sediments, and biota (fish). More than 200 organic micropollutants were analyzed, including relevant groups like pharmaceuticals, personal care products, perfluorinated compounds, pesticides, pyrethroid insecticides, flame retardants, and persistent organic pollutants. Data obtained were summarized with some basic statistics for all compound families and matrices analyzed. Observed occurrence and spatial patterns were interpreted both in terms of compound physical-chemical properties and local environmental pressures. Finally, their spatial distribution was examined and their ecotoxicological risk in the water phase was assessed. This allowed locating, at each basin, the most polluted sites (“hot spots”) and identifying the respective river basin specific pollutants (RBSPs), prioritizing them in terms of the potential ecotoxicological risk posed to the aquatic ecosystems.
Publisher version (URL)https://doi.org/10.1016/j.scitotenv.2020.142344
URIhttp://hdl.handle.net/10261/221089
DOI10.1016/j.scitotenv.2020.142344
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