Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Environmental risk assessment of the anionic surfactant sodium lauryl ether sulphate in site-specific conditions arising from mechanized tunnelling |
| Abstract | Sodium lauryl ether sulphate (SLES) is the anionic surfactant commonly utilized as the main synthetic chemical component in most foaming agents used in mechanized tunnelling. This produces huge amounts of soil debris which can contain residual concentrations of SLES. The absence of environmental quality standards for soil and water and the limited information about SLES persistence in real excavated soils do not facilitate any re-use of soil debris as by-products. The environmental risk assessment (ERA) of foaming agents containing SLES can be a valid tool for this purpose. In this study, an ERA analysis of SLES in 12 commercial formulations (cf) used for tunnelling excavation was performed. Various soils from different tunnel excavation sites were conditioned with the selected foaming agents containing SLES. Predicted or measured environmental concentrations (PECs, MECs) were determined and then compared with the Predicted No Effect Concentrations (PNECs) for both the terrestrial and aquatic compartments. The results indicate a reduction of the potential risk over time for these ecosystems, with differences depending on both the commercial foaming formulation and the spoil material characteristics. However, because potential threats to the natural environment cannot be excluded, some risk management and mitigation actions are discussed. |
| Source | Journal of hazardous materials (Print) 383 |
| Keywords | SLESSoil debrisMeasured environmental concentrationsPredicted environmental concentrationERA |
| Journal | Journal of hazardous materials (Print) |
| Editor | Elsevier, New York ;, Paesi Bassi |
| Year | 2019 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.jhazmat.2019.121116 |
| Authors | Finizio A, Patrolecco L, Grenni P, Galli E, Muzzini VG, Rauseo J, Rizzi C, Barra Caracciolo A |
| Text | 407021 2019 10.1016/j.jhazmat.2019.121116 ISI Web of Science WOS 000502887900010 Scopus 2 s2.0 85071990854 SLES Soil debris Measured environmental concentrations Predicted environmental concentration ERA Environmental risk assessment of the anionic surfactant sodium lauryl ether sulphate in site specific conditions arising from mechanized tunnelling Finizio A, Patrolecco L, Grenni P, Galli E, Muzzini VG, Rauseo J, Rizzi C, Barra Caracciolo A Finizio A, Rizzi C Universita Bicocca Patrolecco L, Grenni P, Rauseo J, Barra Caracciolo A IRSA CNR Galli E, Muzzini VG IRET CNR Sodium lauryl ether sulphate SLES is the anionic surfactant commonly utilized as the main synthetic chemical component in most foaming agents used in mechanized tunnelling. This produces huge amounts of soil debris which can contain residual concentrations of SLES. The absence of environmental quality standards for soil and water and the limited information about SLES persistence in real excavated soils do not facilitate any re use of soil debris as by products. The environmental risk assessment ERA of foaming agents containing SLES can be a valid tool for this purpose. In this study, an ERA analysis of SLES in 12 commercial formulations cf used for tunnelling excavation was performed. Various soils from different tunnel excavation sites were conditioned with the selected foaming agents containing SLES. Predicted or measured environmental concentrations PECs, MECs were determined and then compared with the Predicted No Effect Concentrations PNECs for both the terrestrial and aquatic compartments. The results indicate a reduction of the potential risk over time for these ecosystems, with differences depending on both the commercial foaming formulation and the spoil material characteristics. However, because potential threats to the natural environment cannot be excluded, some risk management and mitigation actions are discussed. 383 Published version https //doi.org/10.1016/j.jhazmat.2019.121116 28/08/2019 Grenni P Joint first author. pdf_JHM JHM_Finizio_etal.pdf Articolo in rivista Elsevier 0304 3894 Journal of hazardous materials Print Journal of hazardous materials Print J. hazard. mater. Print Journal of hazardous materials. Print luisa.patrolecco PATROLECCO LUISA anna.barracaracciolo BARRA CARACCIOLO ANNA paola.grenni GRENNI PAOLA jasmin.rauseo RAUSEO JASMIN TA.P04.005.011 Vulnerabilita degli ecosistemi delle acque sotterranee e attenuazione naturale degli inquinanti nel suolo e nel sottosuolo |