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Pàgina inicial > Articles > Articles publicats > Chemicals of emerging concern in coastal aquifers : |
Data: | 2023 |
Resum: | Submarine Groundwater Discharge (SGD) is recognized as a relevant source of pollutants to the sea, but little is known about its relevance as a source of chemicals of emerging concern (CECs). Here, both the presence and distribution of a wide range of CECs have been evaluated in the most comprehensive manner to date, in a well-characterized Mediterranean coastal aquifer near Barcelona (Spain). Samples from coastal groundwater and seawater allowed for the unique spatial characterization of the pollutants present in the land-ocean interface, an outstanding research gap that required attention. The main goals were (1) to determine CECs in the aquifer, so as to evaluate the SGD as a relevant source of marine pollution, and (2) to identify new tracers to improve our understanding of SGD dynamics. To this end, 92 CECs were located in the aquifer by using wide-scope analytical target methodologies (>2000 chemicals). Among them, the perfluoroalkyl and polyfluoroalkyl substances (PFAS), along with the pharmaceuticals carbamazepine and topiramate, were revealed to be good markers for tracing anthropogenic contamination in ground- and seawater, in concrete situations (e. g. , highly contaminated sites). Additionally, non-target analysis expanded the number of potential tracers, making it a promising tool for identifying both the source and the fate of pollutants. |
Ajuts: | Agencia Estatal de Investigación PID2019-110212RB-C21 Ministerio de Ciencia e Innovación RYC2019-027913-I Agència de Gestió d'Ajuts Universitaris i de Recerca 2019/BP-00241 |
Nota: | Unidad de excelencia María de Maeztu CEX2019-000940-M |
Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió publicada |
Matèria: | Coastal aquifer ; Emerging pollutants ; High-resolution mass spectrometry (HRMS) ; Non-target analysis ; Perfluoroalkyl and polyfluoroalkyl substances (PFAS) ; Submarine groundwater discharge (SGD) |
Publicat a: | Journal of hazardous materials, Vol. 448 (April 2023) , art. 130876, ISSN 1873-3336 |
11 p, 5.8 MB |