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Tremolada P, Saliu F, Winkler A, Carniti CP, Castelli M, Lasagni M, Andò S, Leandri-Breton DJ, Gatt MC, Obiol JF, Parolini M, Nakajima C, Whelan S, Shoji A, Hatch SA, Elliott KH, Cecere JG, Rubolini D. Indigo-dyed cellulose fibers and synthetic polymers in surface-feeding seabird chick regurgitates from the Gulf of Alaska. Mar Pollut Bull 2024; 203:116401. [PMID: 38713925 DOI: 10.1016/j.marpolbul.2024.116401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 05/09/2024]
Abstract
We provide evidence of anthropogenic materials ingestion in seabirds from a remote oceanic area, using regurgitates obtained from black-legged kittiwake (Rissa tridactyla) chicks from Middleton Island (Gulf of Alaska, USA). By means of GPS tracking of breeding adults, we identified foraging grounds where anthropogenic materials were most likely ingested. They were mainly located within the continental shelf of the Gulf of Alaska and near the Alaskan coastline. Anthropogenic cellulose fibers showed a high prevalence (85 % occurrence), whereas synthetic polymers (in the micro- and mesoplastics dimensional range) were less frequent (20 %). Most fibers (60 %) were blue and we confirmed the presence of indigo-dyed cellulosic fibers, characteristic of denim fabrics. In terms of mass, contamination levels were 0.077 μg g-1 wet weight and 0.009 μg g-1 wet weight for anthropogenic microfibers and synthetic polymers, respectively. These results represent the only recent report of contamination by anthropogenic fibers in seabirds from the Gulf of Alaska.
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Affiliation(s)
- Paolo Tremolada
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, via Celoria 26, I-20133, Milano, Italy.
| | - Francesco Saliu
- Dipartimento di Scienze dell'Ambiente e della Terra, Università degli Studi di Milano-Bicocca, p.zza della Scienza 1, I-20126 Milano, Italy
| | - Anna Winkler
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, via Celoria 26, I-20133, Milano, Italy
| | - Cecilia P Carniti
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, via Celoria 26, I-20133, Milano, Italy
| | - Melisa Castelli
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, via Celoria 26, I-20133, Milano, Italy
| | - Marina Lasagni
- Dipartimento di Scienze dell'Ambiente e della Terra, Università degli Studi di Milano-Bicocca, p.zza della Scienza 1, I-20126 Milano, Italy
| | - Sergio Andò
- Dipartimento di Scienze dell'Ambiente e della Terra, Università degli Studi di Milano-Bicocca, p.zza della Scienza 1, I-20126 Milano, Italy
| | - Don-Jean Leandri-Breton
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, via Celoria 26, I-20133, Milano, Italy
| | - Marie Claire Gatt
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, via Celoria 26, I-20133, Milano, Italy
| | - Joan Ferrer Obiol
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, via Celoria 26, I-20133, Milano, Italy
| | - Marco Parolini
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, via Celoria 26, I-20133, Milano, Italy
| | - Chinatsu Nakajima
- Department of Life and Environmental Science, University of Tsukuba, Tsukuba, Japan
| | - Shannon Whelan
- Institute for Seabird Research and Conservation, Anchorage, AK, USA
| | - Akiko Shoji
- Department of Life and Environmental Science, University of Tsukuba, Tsukuba, Japan
| | - Scott A Hatch
- Institute for Seabird Research and Conservation, Anchorage, AK, USA
| | - Kyle H Elliott
- Department of Natural Resource Sciences, McGill University, Ste-Anne-de-Bellevue, Quebec, Canada
| | | | - Diego Rubolini
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, via Celoria 26, I-20133, Milano, Italy
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2
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Becchi A, Mantovani M, Lasagni M, Collina E, Montano S, Galli P, Saliu F. Application of non-lethal bioSPME-LC-MS/MS for the detection of human pharmaceuticals in soft corals: A survey at the North Nilandhe atoll (Maldives). Chemosphere 2024; 356:141781. [PMID: 38554875 DOI: 10.1016/j.chemosphere.2024.141781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 03/10/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
At present the information regarding the occurrence of human pharmaceuticals (PhaCs) in coral reefs and their potential impacts on the associated fauna is limited. To optimize the collection of data in these delicate environments, we employed a solid-phase microextraction (bioSPME) and liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) procedure that enabled in vivo determinations in soft corals. Specifically, we researched the antibiotics Ofloxacin Sulfamethoxazole and Clarithromycin, the anti-inflammatory Diclofenac Propyphenazone Ketoprofen and Amisulpride, the neuroactive compounds Gabapentin-lactam, the beta-blocker Metoprolol and the antiepileptic Carbamazepine. Reproducibility was between 2.1% and 9.9% and method detection limits LODs) were between 0.2 and 1.6 ng/g and LOQs between 0.8 and 5.4 mg/g. The method was then applied to establish a baseline for the occurrence of these compounds in the Maldivian archipelago. Colonies of Sarcophyton sp. and Sinularia sp. were sampled along an inner-outer reef transect. Five of the ten targeted PhaCs were identified, and 40% of the surveyed coral colonies showed the occurrence of at least one of the selected compounds. The highest concentrations were found inside the atoll rim. Oxoflacin (9.5 ± 3.9 ng/g) and Ketoprofen (4.5 ± 2.3 ng/g) were the compounds with the highest average concentrations. Outside the atoll rim, only one sample showed contamination levels above the detection limit. No significant differences were highlighted among the two surveyed soft coral species, both in terms of average concentrations and bioconcentration factors (BCFs).
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Affiliation(s)
- Alessandro Becchi
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Marco Mantovani
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Elena Collina
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Simone Montano
- MaRHE Center (Marine Research and High Education Centre), Magoodhoo Island, Faafu Atoll, Maldives
| | - Paolo Galli
- University of Dubai, PO Box: 14143, Dubai Academic City, United Arab Emirates
| | - Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
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3
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Vencato S, Montano S, Saliu F, Coppa S, Becchi A, Liotta I, Valente T, Cocca M, Matiddi M, Camedda A, Massaro G, Seveso D, Lasagni M, Galli P, de Lucia GA. Phthalate levels in common sea anemone Actinia equina and Anemonia viridis: A proxy of short-term microplastic interaction? Mar Pollut Bull 2024; 200:116125. [PMID: 38359481 DOI: 10.1016/j.marpolbul.2024.116125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/19/2024] [Accepted: 02/01/2024] [Indexed: 02/17/2024]
Abstract
Phthalates are widely employed plasticizers blended to plastic polymers that, during plastic aging and weathering are prone to leach in the surrounding environment. Thus, phthalates were proposed to indirectly evaluate MPs contamination in marine environments, with still uncertain and scarce data, particularly for wildlife. This study investigates simultaneously microplastics (MPs) and phthalates (PAEs) occurrence in wild Actinia equina and Anemonia viridis, two common and edible sea anemone species. Both species had a 100 % frequency of MPs occurrence, with similar average concentrations. PAEs were detected in 70 % of samples, with concentrations up to 150 ng/g in A. equina and 144.3 ng/g for A. viridis. MPs and PAEs present in sea anemone tissues appear to reflect seawater plastic contamination conditions in the study area. Given the rapid biodegradation of PAEs, occurrence and concentrations of both these additives and their metabolites could be useful tracers of short-term plastic debris-biota interactions.
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Affiliation(s)
- Sara Vencato
- CNR-IAS, National Research Council - Institute of Anthropic Impact and Sustainability in Marine Environment, Oristano Section, Località Sa Mardini, 09170 Torregrande, Oristano, Italy; DISAT, Department of Earth and Environmental Science, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Simone Montano
- DISAT, Department of Earth and Environmental Science, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Republic of Maldives
| | - Francesco Saliu
- DISAT, Department of Earth and Environmental Science, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Stefania Coppa
- CNR-IAS, National Research Council - Institute of Anthropic Impact and Sustainability in Marine Environment, Oristano Section, Località Sa Mardini, 09170 Torregrande, Oristano, Italy.
| | - Alessandro Becchi
- DISAT, Department of Earth and Environmental Science, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Immacolata Liotta
- CNR-IPCB, National Research Council - Institute of Polymers, Composites and Biomaterials, Via Campi Flegrei, 34-80078 Pozzuoli, Napoli, Italy; DICMaPI, Department of Chemical, Materials and Production Engineering, University of Naples "Federico II", Piazzale Tecchio, 80, 80125 Napoli, Italy
| | - Tommaso Valente
- ISPRA, Italian National Institute for Environmental Protection and Research, Via del Fosso di Fiorano 64, 00143 Roma, Italy; La Sapienza' University of Rome, Department of Environmental Biology, Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Mariacristina Cocca
- CNR-IPCB, National Research Council - Institute of Polymers, Composites and Biomaterials, Via Campi Flegrei, 34-80078 Pozzuoli, Napoli, Italy
| | - Marco Matiddi
- ISPRA, Italian National Institute for Environmental Protection and Research, Via del Fosso di Fiorano 64, 00143 Roma, Italy
| | - Andrea Camedda
- CNR-IAS, National Research Council - Institute of Anthropic Impact and Sustainability in Marine Environment, Oristano Section, Località Sa Mardini, 09170 Torregrande, Oristano, Italy
| | - Giorgio Massaro
- CNR-IAS, National Research Council - Institute of Anthropic Impact and Sustainability in Marine Environment, Oristano Section, Località Sa Mardini, 09170 Torregrande, Oristano, Italy
| | - Davide Seveso
- DISAT, Department of Earth and Environmental Science, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Republic of Maldives
| | - Marina Lasagni
- DISAT, Department of Earth and Environmental Science, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Paolo Galli
- DISAT, Department of Earth and Environmental Science, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Republic of Maldives
| | - Giuseppe Andrea de Lucia
- CNR-IAS, National Research Council - Institute of Anthropic Impact and Sustainability in Marine Environment, Oristano Section, Località Sa Mardini, 09170 Torregrande, Oristano, Italy
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Gobbato J, Becchi A, Bises C, Siena F, Lasagni M, Saliu F, Galli P, Montano S. Occurrence of phthalic acid esters (PAEs) and active pharmaceutical ingredients (APIs) in key species of anthozoans in Mediterranean Sea. Mar Pollut Bull 2024; 200:116078. [PMID: 38290362 DOI: 10.1016/j.marpolbul.2024.116078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 02/01/2024]
Abstract
The Mediterranean Sea's biodiversity is declining due to climate change and human activities, with plastics and emerging contaminants (ECs) posing significant threats. This study assessed phthalic acid esters (PAEs) and active pharmaceutical ingredients (APIs) occurrence in four anthozoan species (Cladocora caespitosa, Eunicella cavolini, Madracis pharensis, Parazoanthus axinellae) using solid phase microextraction (SPME) and liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). All specimens were contaminated with at least one contaminant, reaching maximum values of 57.3 ng/g for the ∑PAEs and 64.2 ng/g (wet weight) for ∑APIs, with dibutyl phthalate and Ketoprofen being the most abundant. P. axinellae was the most contaminated species, indicating higher susceptibility to bioaccumulation, while the other three species showed two-fold lower concentrations. Moreover, the potential adverse effects of these contaminants on anthozoans have been discussed. Investigating the impact of PAEs and APIs on these species is crucial, given their key role in the Mediterranean benthic communities.
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Affiliation(s)
- J Gobbato
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives.
| | - A Becchi
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy
| | - C Bises
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives
| | - F Siena
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives
| | - M Lasagni
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy
| | - F Saliu
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy
| | - P Galli
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives; University of Dubai, P.O. Box 14143, Dubai Academic City, United Arab Emirates; NBFC (National Biodiversity Future Center), 90133 Palermo, Italy
| | - S Montano
- Department of Earth and Environmental Sciences (DISAT), University of Milan - Bicocca, Piazza della Scienza, 20126 Milan, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, 12030 Faafu Atoll, Maldives; NBFC (National Biodiversity Future Center), 90133 Palermo, Italy
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5
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Mantovani M, Rossi S, Ficara E, Collina E, Marazzi F, Lasagni M, Mezzanotte V. Removal of pharmaceutical compounds from the liquid phase of anaerobic sludge in a pilot-scale high-rate algae-bacteria pond. Sci Total Environ 2024; 908:167881. [PMID: 37865249 DOI: 10.1016/j.scitotenv.2023.167881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 10/23/2023]
Abstract
This study evaluates the effectiveness of a pilot-scale high-rate algae-bacteria pond (HRAP) to remove pharmaceutical compounds (PhACs) from municipal centrate. The studied PhACs belonged to different classes of synthetic active compounds: antihypertensives, antiepileptics, antidepressants, neuroprotectors, and anti-inflammatory drugs. The HRAP, growing a mixed microalgal consortium made of Chlorella spp. and Scenedesmus spp., was operated in continuous mode (6 days hydraulic retention time) from May to November 2021. Removal efficiencies were high (>85 %) for Sulfamethoxazole and Lamotrigine, promising (65-70 %) for Metoprolol, Fluoxetine, and Diclofenac but low (30-40 %) for Amisulpride, Ofloxacin, Carbamazepine, and Clarithromycin. Propyphenazone and Irbesartan were not removed, and their concentrations increased after the treatment. The combination of abiotic and biotic drivers (mostly global radiation and the synergy between microalgae and bacteria metabolisms) fostered photo and biodegradation processes. Overall, results suggest that microalgae-based systems can be a valuable solution to remove PhACs from wastewater.
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Affiliation(s)
- Marco Mantovani
- Università degli Studi di Milano - Bicocca, Department of Earth and Environmental Sciences (DISAT), P.zza della Scienza 1, 20126 Milano, Italy
| | - Simone Rossi
- Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), P.zza L. da Vinci 32, 20133 Milano, Italy
| | - Elena Ficara
- Politecnico di Milano, Department of Civil and Environmental Engineering (DICA), P.zza L. da Vinci 32, 20133 Milano, Italy
| | - Elena Collina
- Università degli Studi di Milano - Bicocca, Department of Earth and Environmental Sciences (DISAT), P.zza della Scienza 1, 20126 Milano, Italy
| | - Francesca Marazzi
- Università degli Studi di Milano - Bicocca, Department of Earth and Environmental Sciences (DISAT), P.zza della Scienza 1, 20126 Milano, Italy
| | - Marina Lasagni
- Università degli Studi di Milano - Bicocca, Department of Earth and Environmental Sciences (DISAT), P.zza della Scienza 1, 20126 Milano, Italy
| | - Valeria Mezzanotte
- Università degli Studi di Milano - Bicocca, Department of Earth and Environmental Sciences (DISAT), P.zza della Scienza 1, 20126 Milano, Italy.
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6
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Saliu F, Lasagni M, Clemenza M, Chubarenko I, Esiukova E, Suaria G. The interactions of plastic with tar and other petroleum derivatives in the marine environment: A general perspective. Mar Pollut Bull 2023; 197:115753. [PMID: 37952374 DOI: 10.1016/j.marpolbul.2023.115753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/14/2023]
Abstract
Plastic and oil pollution are closely linked to our dependence on petroleum derivatives. Their excessive use and inefficiencies in their management, have led to negative impacts on marine ecosystems since their very introduction. Agglomerates of tar, plastic, paraffins, and other petrochemicals and oil derivatives with naturally occurring materials, are increasingly widespread in coastal environments, stalling as an iconic and readable sign of environmental degradation. Starting from a historical review of the available reports on the occurrence of similar aggregates dating back to 1971, we highlight how most of these observations are based on the morphological description of the petroleum residues with no chemical fingerprinting and are mainly related to materials stranded on the coastline, with few and unclear indications for the open sea. We discuss here a list of scientific questions and knowledge gaps, that need to be examined by future studies.
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Affiliation(s)
- Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Massimiliano Clemenza
- National Institute of Nuclear Physic (INFN) Milano Bicocca branch, Piazza della Scienza 2, 20126 Milano, Italy
| | - Irina Chubarenko
- Shirshov Institute of Oceanology, Russian Academy of Sciences, 36 Nakhimovsky Prosp., Moscow 117997, Russia
| | - Elena Esiukova
- Shirshov Institute of Oceanology, Russian Academy of Sciences, 36 Nakhimovsky Prosp., Moscow 117997, Russia
| | - Giuseppe Suaria
- CNR-ISMAR, Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine, Pozzuolo di Lerici, 19032 La Spezia, Italy
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7
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Saliu F, Compa M, Becchi A, Lasagni M, Collina E, Liconti A, Suma E, Deudero S, Grech D, Suaria G. Plastitar in the Mediterranean Sea: New records and the first geochemical characterization of these novel formations. Mar Pollut Bull 2023; 196:115583. [PMID: 37769405 DOI: 10.1016/j.marpolbul.2023.115583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/16/2023] [Accepted: 09/21/2023] [Indexed: 09/30/2023]
Abstract
A new geological formation consisting of plastic debris admixed to petroleum oil residue, termed "plastitar", has been recently described in the Canary Islands. Here, we report its widespread occurrence across the Mediterranean coast and new insights into its biogeochemical composition. Specifically, we found marked differences in the diagenetic stable indicator profiles, suggesting a heterogeneous seeps provenance. Moreover, the 801 plastic particles found in the 1372 g of tar surveyed, with a maximum concentration of 2.0 items/g, showed interesting patterns in the tar mat, with nurdles predominantly layered in the external of the tar mat and lines in the inner core. Overall, the collected observation suggests that tar entraps plastics through a stepwise process and is a sink for them.
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Affiliation(s)
- Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Montserrat Compa
- Centro Oceanográfico de Baleares, (IEO, CSIC), Muelle de Poniente s/n, 07015 Mallorca, Spain
| | - Alessandro Becchi
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Elena Collina
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Arianna Liconti
- OutBe SRL, Genova, Italy; MBA, The Marine Biological Association, The Laboratory, Citadel Hill, Plymouth PL1 2PB, United Kingdom
| | | | - Salud Deudero
- Centro Oceanográfico de Baleares, (IEO, CSIC), Muelle de Poniente s/n, 07015 Mallorca, Spain
| | - Daniele Grech
- IMC - International Marine Centre, Loc. Sa Mardini, 09170, Torregrande, Oristano, Italy
| | - Giuseppe Suaria
- CNR-ISMAR, Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine, Pozzuolo di Lerici, 19032 La Spezia, Italy
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8
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Pellegrini C, Saliu F, Bosman A, Sammartino I, Raguso C, Mercorella A, Galvez DS, Petrizzo A, Madricardo F, Lasagni M, Clemenza M, Trincardi F, Rovere M. Hotspots of microplastic accumulation at the land-sea transition and their spatial heterogeneity: The Po River prodelta (Adriatic Sea). Sci Total Environ 2023; 895:164908. [PMID: 37385497 DOI: 10.1016/j.scitotenv.2023.164908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/07/2023] [Accepted: 06/13/2023] [Indexed: 07/01/2023]
Abstract
Deltas are the locus of river-borne sediment accumulation, however, their role in sequestering plastic pollutants is still overlooked. By combining geomorphological, sedimentological, and geochemical analyses, which include time-lapse multibeam bathymetry, sediment provenance, and μFT-IR analyses, we investigate the fate of plastic particles after a river flood event providing an unprecedented documentation of the spatial distribution of sediment as well as of microplastics (MPs), including particles fibers, and phthalates (PAEs) abundances in the subaqueous delta. Overall sediments are characterized by an average of 139.7 ± 80 MPs/kg d.w., but display spatial heterogeneity of sediment and MPs accumulation: MPs are absent within the active sandy delta lobe, reflecting dilution by clastic sediment (ca. 1.3 Mm3) and sediment bypass. The highest MP concentration (625 MPs/kg d.w.) occurs in the distal reaches of the active lobe where flow energy dissipates. In addition to MPs, cellulosic fibers are relevant (of up to 3800 fibers/kg d.w.) in all the analyzed sediment samples, and dominate (94 %) with respect to synthetic polymers. Statistically significant differences in the relative concentration of fiber fragments ≤0.5 mm in size were highlighted between the active delta lobe and the migrating bedforms in the prodelta. Fibers were found to slightly follow a power law size distribution coherent with a one-dimensional fragmentation model and thus indicating the absence of a size dependent selection mechanism during burial. Multivariate statistical analysis suggests traveling distance and bottom-transport regime as the most relevant factors controlling particle distribution. Our findings suggest that subaqueous prodelta should be considered hot spots for the accumulation of MPs and associated pollutants, albeit the strong lateral heterogeneity in their abundances reflects changes in the relative influence of fluvial and marine processes.
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Affiliation(s)
- C Pellegrini
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Scienze Marine (ISMAR-CNR), Italy.
| | - F Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Milano, Italy
| | - A Bosman
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Geologia Ambientale e Geoingegneria (IGAG), Italy
| | - I Sammartino
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Scienze Marine (ISMAR-CNR), Italy
| | - C Raguso
- Earth and Environmental Science Department, University of Milano Bicocca, Milano, Italy
| | - A Mercorella
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Scienze Marine (ISMAR-CNR), Italy
| | - D S Galvez
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Scienze Marine (ISMAR-CNR), Italy
| | - A Petrizzo
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Scienze Marine (ISMAR-CNR), Italy
| | - F Madricardo
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Scienze Marine (ISMAR-CNR), Italy
| | - M Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Milano, Italy
| | - M Clemenza
- INFN Sezione di Milano-Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
| | - F Trincardi
- Consiglio Nazionale delle Ricerche (CNR), Dipartimento di Scienze del Sistema Terra e Tecnologie per l'Ambiente (DSSTTA), Rome, Italy
| | - M Rovere
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Scienze Marine (ISMAR-CNR), Italy
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9
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Saliu F, Lasagni M, Andò S, Ferrero L, Pellegrini C, Calafat A, Sanchez-Vidal A. A baseline assessment of the relationship between microplastics and plasticizers in sediment samples collected from the Barcelona continental shelf. Environ Sci Pollut Res Int 2023; 30:36311-36324. [PMID: 36547830 DOI: 10.1007/s11356-022-24772-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
It has been suggested that the seafloor may be a sink for the plastic debris that enters the ocean. Therefore, the collection of data in the seafloor sediments regarding the co-presence of microplastics (MPs) and contaminants associated to plastic is considered a relevant topic. However, the number of studies addressing their possible correlation in this environment is still limited, and very little is known about the mechanisms that determine the release of plastic additives from plastic items. Starting from this basis, we investigated the presence of MPs and eleven phthalic acid esters (PAEs) in the continental shelf offshore Barcelona. Following a shelf-slope continuum approach, we sampled sediments from five stations, and we performed analysis by means of infrared micro spectroscopy (µFTIR) and liquid chromatography tandem mass spectrometry (LC-MS/MS). MPs were found to range from 62.0 to 931.1 items/kg d.w. with maximum concentration in the submarine canyon Besòs and at the highest depth. Moreover, different trends in the size distribution of fibers and non-fibers were observed, indicating the occurrence of a size dependent selection mechanism during transport and accumulation. PAEs resulted comprised between 1.35 to 2.41 mg/kg with Di(2-ethylhexyl)phthalate (DEHP) the most abundant congeners (1.04 mg/kg). Statistical analysis revealed no correlation between the Σ11PAEs and the total MPs concentration, but correlation between DEHP and fibers (σ = 0.667, p = 0,037), that resulted both correlated to the distance to the coast (ρ = 0.941 with p = 0,008 and ρ = 0.673 with p = 0.035, respectively).
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Affiliation(s)
- Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy.
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | - Sergio Andò
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | - Luca Ferrero
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | - Claudio Pellegrini
- Consiglio Nazionale Delle Ricerche (CNR), Istituto Di Scienze Marine (ISMAR), Venice, Italy
| | - Antoni Calafat
- Department of Earth and Ocean Dynamics, Faculty of Earth Sciences, University of Barcelona, 08028, Barcelona, Spain
| | - Anna Sanchez-Vidal
- Department of Earth and Ocean Dynamics, Faculty of Earth Sciences, University of Barcelona, 08028, Barcelona, Spain
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10
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Mantovani M, Collina E, Lasagni M, Marazzi F, Mezzanotte V. Production of microalgal-based carbon encapsulated iron nanoparticles (ME-nFe) to remove heavy metals in wastewater. Environ Sci Pollut Res Int 2023; 30:6730-6745. [PMID: 36008581 PMCID: PMC9894965 DOI: 10.1007/s11356-022-22506-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
The integration of microalgae-bacteria consortia within existing wastewater treatment plants as alternative biological treatment could be an interesting option to improve the sustainability of these facilities. However, the fate of the produced biomass is decisive to make that option economically attractive. The present study aimed to valorize the microalgae grown at a pilot scale and used for the treatment of the centrate from municipal sewage sludge, producing microalgal-based iron nanoparticles (ME-nFe), by hydrothermal carbonization. The final product had high carbon content, strong sorbent power, and reducing properties, due to the presence of zerovalent iron. Different synthesis conditions were tested, comparing iron (III) nitrate nonahydrate (Fe (NO3)3·9H2O) and ammonium iron (III) sulfate dodecahydrate (NH4 Fe (SO4)2·12 H2O) as iron sources, four different Fe/C molar ratios (0.02, 0.05, 0.1, 0.2), and three process temperatures (180, 200, 225 °C). Based on the characterization of all the prototypes, the best one (having a specific area of 110 m2g-1) was chosen and tested for the removal of selected heavy metals by Jar tests. The removal of copper, zinc, cadmium, and nickel from the treated effluent from the wastewater treatment plant was 99.6%, 97.8%, 96.4%, and 80.3%, respectively, also for very low starting concentrations (1 mg L-1). The removal of total chromium, on the contrary, was only 12.4%. Thanks to the magnetic properties, the same batch of ME-nFe was recovered and used effectively for three consecutive Jar tests.
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Affiliation(s)
- Marco Mantovani
- Department of Earth and Environmental Sciences (DISAT), Università degli Studi di Milano-Bicocca, P.zza della Scienza 1, 20126, Milano, Italy.
| | - Elena Collina
- Department of Earth and Environmental Sciences (DISAT), Università degli Studi di Milano-Bicocca, P.zza della Scienza 1, 20126, Milano, Italy
| | - Marina Lasagni
- Department of Earth and Environmental Sciences (DISAT), Università degli Studi di Milano-Bicocca, P.zza della Scienza 1, 20126, Milano, Italy
| | - Francesca Marazzi
- Department of Earth and Environmental Sciences (DISAT), Università degli Studi di Milano-Bicocca, P.zza della Scienza 1, 20126, Milano, Italy
| | - Valeria Mezzanotte
- Department of Earth and Environmental Sciences (DISAT), Università degli Studi di Milano-Bicocca, P.zza della Scienza 1, 20126, Milano, Italy
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11
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De Giani A, Oldani M, Forcella M, Lasagni M, Fusi P, Di Gennaro P. Synergistic Antioxidant Effect of Prebiotic Ginseng Berries Extract and Probiotic Strains on Healthy and Tumoral Colorectal Cell Lines. Int J Mol Sci 2022; 24:373. [PMID: 36613815 PMCID: PMC9820163 DOI: 10.3390/ijms24010373] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Oxidative stress caused by reactive oxygen species (ROS, O2•−, HO•, and H2O2) affects the aging process and the development of several diseases. A new frontier on its prevention includes functional foods with both specific probiotics and natural extracts as antioxidants. In this work, Panax ginseng C.A. Meyer berries extract was characterized for the presence of beneficial molecules (54.3% pectin-based polysaccharides and 12% ginsenosides), able to specifically support probiotics growth (OD600nm > 5) with a prebiotic index of 0.49. The administration of the extract to a probiotic consortium induced the production of short-chain fatty acids (lactic, butyric, and propionic acids) and other secondary metabolites derived from the biotransformation of Ginseng components. Healthy and tumoral colorectal cell lines (CCD841 and HT-29) were then challenged with these metabolites at concentrations of 0.1, 0.5, and 1 mg/mL. The cell viability of HT-29 decreased in a dose-dependent manner after the exposition to the metabolites, while CCD841 vitality was not affected. Regarding ROS production, the metabolites protected CCD841 cells, while ROS levels were increased in HT-29 cells, potentially correlating with the less functionality of glutathione S-transferase, catalase, and total superoxide dismutase enzymes, and a significant increase in oxidized glutathione.
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Affiliation(s)
- Alessandra De Giani
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy
| | - Monica Oldani
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy
| | - Matilde Forcella
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy
| | - Marina Lasagni
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126 Milano, Italy
| | - Paola Fusi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy
| | - Patrizia Di Gennaro
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy
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12
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Chubarenko I, Lazaryuk A, Orlova T, Lobchuk O, Raguso C, Zyubin A, Lasagni M, Saliu F. Microplastics in the first-year sea ice of the Novik Bay, Sea of Japan. Mar Pollut Bull 2022; 185:114236. [PMID: 36257245 DOI: 10.1016/j.marpolbul.2022.114236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Sea ice is heavily contaminated with microplastics particles (MPs, <5 mm). First-year sea ice cores (38-41 cm thick) were taken in the beginning of spring in a narrow populated bay of the Sea of Japan. Two ice cores were examined (layer-by-layer, excluding surface) for MPs content: one using μ-FTIR for 25-300 μm (SMPs), and another one - with visual+Raman identification for 300-5000 μm particles (LMPs). The integral (25-5000 μm) bulk mean abundance of MPs was found to be 428 items/L of meltwater, with fibers making 19 % in SMPs size range and 59 % in LMPs. Integral mean mass of MPs was estimated in 34.6 mg/L, with 99.6 % contribution from fragments of LMPs. Comparison with simple fragmentation models confirms deficit of SMPs (especially of fibers in size range 150-300 μm), suggested to result from their leakage with brine. Multivariate statistical analysis indicates strong positive correlation of large fiber (>300 μm) counts and ice salinity.
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Affiliation(s)
- Irina Chubarenko
- Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia.
| | - Alexander Lazaryuk
- Il'ichev Pacific Oceanological Institute, Russian Academy of Sciences, Vladivostok, Russia
| | - Tatiana Orlova
- Zhirmunsky National Scientific Center of Marine Biology, Russian Academy of Sciences, Vladivostok, Russia
| | - Olga Lobchuk
- Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia
| | - Clarissa Raguso
- Earth and Environmental Science Department (DISAT), University of Milano Bicocca, Piazza Della Scienza 1, 20126 Milano, Italy
| | - Andrey Zyubin
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Marina Lasagni
- Earth and Environmental Science Department (DISAT), University of Milano Bicocca, Piazza Della Scienza 1, 20126 Milano, Italy
| | - Francesco Saliu
- Earth and Environmental Science Department (DISAT), University of Milano Bicocca, Piazza Della Scienza 1, 20126 Milano, Italy
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13
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Raguso C, Grech D, Becchi A, Ubaldi PG, Lasagni M, Guala I, Saliu F. Detection of microplastics and phthalic acid esters in sea urchins from Sardinia (Western Mediterranean Sea). Mar Pollut Bull 2022; 185:114328. [PMID: 36368079 DOI: 10.1016/j.marpolbul.2022.114328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/26/2022] [Accepted: 10/29/2022] [Indexed: 06/16/2023]
Abstract
The occurrence of microplastics (MPs) and phthalic acid esters (PAEs) in wild purple sea urchins (Paracentrotus lividus) of Sardinia (Italy, Western Mediterranean Sea) was surveyed. Specifically, MPs were analyzed in the digestive tract by μFTIR and PAEs in the gonads by SPME-LC-MS/MS. 9 out of 22 specimens resulted contaminated with MPs and 20 displayed levels of PAEs over the quantification limit. A total of 23 MPs were detected with a maximum concentration of 4 microplastics/individual in the commercially undersized specimens. PAEs displayed average concentration of 32 ng/g, σ = 5.3 with maximum value of 77 ng/g. The most abundant congeners were DEHP (17 ng/g, σ = 4.3) and DBP (10 ng/g, σ = 2.5). Statistical analysis showed correlation between DEHP and fiber concentrations and among the concentration of MEP, DEP, DBP and BBzP. Due to local use of sea urchin gonads as gourmet delicacy, the potential human exposition to MPs and PAEs by consumption is also discussed.
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Affiliation(s)
- Clarissa Raguso
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Daniele Grech
- IMC - International Marine Centre, 09170 Loc.tà Sa Mardini, Torregrande, Oristano, Italy
| | - Alessandro Becchi
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Paolo Giuseppe Ubaldi
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Ivan Guala
- IMC - International Marine Centre, 09170 Loc.tà Sa Mardini, Torregrande, Oristano, Italy
| | - Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
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14
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Nessi A, Winkler A, Tremolada P, Saliu F, Lasagni M, Ghezzi LLM, Balestrieri A. Microplastic contamination in terrestrial ecosystems: A study using barn owl (Tyto alba) pellets. Chemosphere 2022; 308:136281. [PMID: 36064015 DOI: 10.1016/j.chemosphere.2022.136281] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/24/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) are recognised as an emerging environmental problem that needs to be carefully monitored. So far, MPs have been widely recorded in marine and freshwater ecosystems. Still, few studies have focused on MP occurrence in terrestrial ecosystems, although soils are suspected to be one of the main MP reservoirs. To test a non-invasive method for assessing MP contamination in terrestrial ecosystems, we analysed the pellets of a top terrestrial predator, the barn owl (Tyto alba). Sixty pellets were collected from three agricultural areas (20 pellets each) and analysed to assess both barn owl diet and MP content. Thirty-four MPs were confirmed by micro-Fourier Transform Infrared Spectroscopy (μ-FTIR) analysis in 33% of the pellets (min-max 1-5 MPs per pellet). Most of the detected items were microfibres (88.2%). Polyethylene terephthalate, polyacrylonitrile and polyamide were the most abundant polymers. One of the three sites was significantly less contaminated. In the two sites with the highest MP occurrences, barn owl diet was characterised by predation on synanthropic rodents, particularly brown rats (Rattus norvegicus), which may indicate habitat degradation and increased exposure to MPs. Analyses also suggest that Savi's pine vole (Microtus savii) is the prey least at risk of MP contamination, probably due to its strictly herbivorous diet. We argue that the analysis of barn owl pellets may represent a cost-effective method for monitoring MP contamination in terrestrial ecosystems.
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Affiliation(s)
- Alessandro Nessi
- Department of Environmental Science and Policy, University of Milan, 20133, Milan, Italy.
| | - Anna Winkler
- Department of Environmental Science and Policy, University of Milan, 20133, Milan, Italy
| | - Paolo Tremolada
- Department of Environmental Science and Policy, University of Milan, 20133, Milan, Italy
| | - Francesco Saliu
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milan, Italy
| | - Marina Lasagni
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milan, Italy
| | | | - Alessandro Balestrieri
- Department of Environmental Science and Policy, University of Milan, 20133, Milan, Italy
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15
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Raguso C, Saliu F, Lasagni M, Galli P, Clemenza M, Montano S. First detection of microplastics in reef-building corals from a Maldivian atoll. Mar Pollut Bull 2022; 180:113773. [PMID: 35623215 DOI: 10.1016/j.marpolbul.2022.113773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 05/14/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
The presence of microplastics in the world's oceans and their effects on marine habitats are highly concerning. As suspension-feeders, corals are very exposed to microplastics, compromising the health of coral reef ecosystems. In this study we surveyed for the first time the presence of microplastics in Maldivian reef-building corals. Aiming to determine the influence of exposure and depth on microplastic distribution, analyses were carried out on 38 individuals belonging to three different species. 58% of the investigated colonies resulted contaminated with particles within the 25-150 μm size range. The maximum concentration was encountered in a Pocillopora verrucosa colony sampled from a shallow inner reef (8.9 particles/g of coral). No significant differences in microplastic concentration were observed between different depths, exposures, sites and species. Overall, this study confirmed microplastic presence in coral reefs of the Maldivian archipelago including foundation species.
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Affiliation(s)
- Clarissa Raguso
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Paolo Galli
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Maldives
| | - Massimiliano Clemenza
- Dipartimento di Fisica "G. Occhialini", University of Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy; INFN Sezione di Milano-Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
| | - Simone Montano
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Maldives
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16
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Isa V, Saliu F, Bises C, Vencato S, Raguso C, Montano S, Lasagni M, Lavorano S, Clemenza M, Galli P. Phthalates bioconcentration in the soft corals: Inter- and intra- species differences and ecological aspects. Chemosphere 2022; 297:134247. [PMID: 35259364 DOI: 10.1016/j.chemosphere.2022.134247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
The bioconcentration of dimethyl phthalate (DMP) diethyl phthalate (DEP) dibutyl phthalate (DBP) butyl benzyl phthalate (BBzP), di-(2-ethy hexyl) phthalates (DEHP), mono-butyl phthalate (MBP), mono-benzyl phthalate (MBzP), mono-(2-ethy hexyl) phthalate (MEHP) in the soft corals Coelogorgia palmosa, Sinularia sp., Sarcophyton glaucum, and Lobophytum sp. was investigated. Specimens were cultured in a microcosm environment built-up at the Genova Aquarium and analyses were carried out by in vivo SPME-LC-MS/MS. The distributions of the phthalates among the four surveyed species resulted significantly different. Calculated bioconcentration factors (BCFs) showed values spanning over two orders of magnitude, from a minimum of log10 BCFDEP = 1.0 in Sarcophyton glaucum to a maximum of log10 BCFDBP = 3,9 calculated for Coelogorgia palmosa. Moreover, the calculated BCFs of the long chain phthalates resulted up to three orders of magnitude lower than theoretically predicted (from logKow), whereas BCF of short chain phthalates resulted higher. This, together with the detection of phthalic acid monoesters, suggests the presence of species-specific different metabolic transformation among the surveyed soft coral species that involve DEHP.
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Affiliation(s)
- Valerio Isa
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy
| | - Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy.
| | - Chiara Bises
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy
| | - Sara Vencato
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy
| | - Clarissa Raguso
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy
| | - Simone Montano
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Republic of, Maldives
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy
| | - Silvia Lavorano
- Costa Edutainment SpA - Acquario di Genova, Area Porto Antico, Ponte Spinola, 16128, Genoa, Italy
| | | | - Paolo Galli
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Republic of, Maldives
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17
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Saliu F, Biale G, Raguso C, La Nasa J, Degano I, Seveso D, Galli P, Lasagni M, Modugno F. Detection of plastic particles in marine sponges by a combined infrared micro-spectroscopy and pyrolysis-gas chromatography-mass spectrometry approach. Sci Total Environ 2022; 819:152965. [PMID: 35016940 DOI: 10.1016/j.scitotenv.2022.152965] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/21/2021] [Accepted: 01/04/2022] [Indexed: 06/14/2023]
Abstract
Plastic pollution threatens the marine environment, especially due to the adverse effects caused by micro and nano particles interacting with the marine biota. In order to provide reliable data regarding micro and nanoplastic contamination and the related impacts, efficient analytical solutions are needed. We developed a new analysis workflow that uses marine sponges to monitor plastic pollution by characterizing the plastic particles accumulated in their tissue. Specimens of cf. Haliclona (Haplosclerida) were sampled in the Maldivian archipelago. The aim was to optimize the method and to carry out a pilot study of the contamination of the related reef habitat. Particles were isolated, size fractioned, counted and submitted to morphological and chemical characterization. The constituting polymer was identified by infrared microspectroscopy for particles >25 μm, and by pyrolysis coupled with gas chromatography mass spectrometry for those <25 μm. Method recoveries were between 87 and 83% and limits of quantitation (LOQs) were between 6.6 and 30.2 ng/g. Analyses showed that 70% of the sponges presented plastic contamination, with an average of 1.2 particles/g tissue for the 25-150 μm size range, and a total plastic concentration of up to 4.8 μg/g in the 0.2-25 μm size range, with polyolefin being the most represented polymer in both size ranges. Overall, the study demonstrated the reliability of the proposed analytical workflow and of the use of sponges as biosamplers for plastic particles.
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Affiliation(s)
- Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Greta Biale
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, Pisa, Italy
| | - Clarissa Raguso
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Jacopo La Nasa
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, Pisa, Italy.
| | - Ilaria Degano
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, Pisa, Italy; Center for Instrument Sharing of the University of Pisa (CISUP), University of Pisa, Italy
| | - Davide Seveso
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island Faafu Atoll, Maldives
| | - Paolo Galli
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island Faafu Atoll, Maldives
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Francesca Modugno
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, Pisa, Italy; Center for Instrument Sharing of the University of Pisa (CISUP), University of Pisa, Italy.
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18
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Cerri F, Saliu F, Maggioni D, Montano S, Seveso D, Lavorano S, Zoia L, Gosetti F, Lasagni M, Orlandi M, Taglialatela-Scafati O, Galli P. Cytotoxic Compounds from Alcyoniidae. An Overview of the Last 30 Years. Mar Drugs 2022; 20:md20020134. [PMID: 35200663 PMCID: PMC8874409 DOI: 10.3390/md20020134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/29/2022] [Accepted: 02/10/2022] [Indexed: 11/30/2022] Open
Abstract
The octocoral family Alcyoniidae represents a rich source of bioactive substances with intriguing and unique structural features. This review aims to provide an updated overview of the compounds isolated from Alcyoniidae and displaying potential cytotoxic activity. In order to allow a better comparison among the bioactive compounds, we focused on molecules evaluated in vitro by using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay, by far the most widely used method to analyze cell proliferation and viability. Specifically, we surveyed the last thirty years of research, finding 153 papers reporting on 344 compounds with proven cytotoxicity. The data were organized in tables to provide a ranking of the most active compounds, to be exploited for the selection of the most promising candidates for further screening and pre-clinical evaluation as anti-cancer agents. Specifically, we found that (22S,24S)-24-methyl-22,25-epoxyfurost-5-ene-3β,20β-diol (16), 3β,11-dihydroxy-24-methylene-9,11-secocholestan-5-en-9-one (23), (24S)-ergostane-3β,5α,6β,25 tetraol (146), sinulerectadione (227), sinulerectol C (229), and cladieunicellin I (277) exhibited stronger cytotoxicity than their respective positive control and that their mechanism of action has not yet been further investigated.
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Affiliation(s)
- Federico Cerri
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Piazza della Scienza 2, 20126 Milano, Italy;
| | - Francesco Saliu
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- Correspondence: ; Tel.: +39-0264482813
| | - Davide Maggioni
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- MaRHE Centre (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll 12030, Maldives
| | - Simone Montano
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- MaRHE Centre (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll 12030, Maldives
| | - Davide Seveso
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- MaRHE Centre (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll 12030, Maldives
| | - Silvia Lavorano
- Costa Edutainment SpA—Acquario di Genova, Area Porto Antico, Ponte Spinola, 16128 Genoa, Italy;
| | - Luca Zoia
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
| | - Fabio Gosetti
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
| | - Marina Lasagni
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
| | - Marco Orlandi
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
| | | | - Paolo Galli
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- MaRHE Centre (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll 12030, Maldives
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Reinold S, Herrera A, Stile N, Saliu F, Hernández-González C, Martinez I, Ortega Z, Marrero MD, Lasagni M, Gómez M. An annual study on plastic accumulation in surface water and sediment cores from the coastline of Tenerife (Canary Island, Spain). Mar Pollut Bull 2021; 173:113072. [PMID: 34700151 DOI: 10.1016/j.marpolbul.2021.113072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 05/06/2023]
Abstract
Sediment core samples from high tide lines and in submerged zones as well as surface water samples from eight beaches of Tenerife were analysed. Sampling was conducted over a period of one year in intervals of 5 weeks. The majority of particles were found in the high tide sediment (66%), followed by water samples (23%) and finally in sediment from submerged zones (11%). Regarding the particle amount per volume (items/L), accumulation in sediment samples was statistically higher compared to water samples. Mean values of items/L were higher in high tide sediments. In high tide and water samples, mostly white and transparent particles >1 mm were found. More than 70% were represented by fragments. In sediments from submerged zones, yellow and blue microparticles (<1 mm) were predominant and 61.9% consisted of fibres. Larger particles were mainly identified as PP, PE, PS, PTFE and PVC, while polymer types of smaller particles were more variable.
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Affiliation(s)
- Stefanie Reinold
- Marine Ecophysiology Group (EOMAR), Iu-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017, Canary Islands, Spain.
| | - Alicia Herrera
- Marine Ecophysiology Group (EOMAR), Iu-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017, Canary Islands, Spain.
| | - Nicolò Stile
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Carlos Hernández-González
- Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Santa Cruz de Tenerife, Canary Islands, Spain.
| | - Ico Martinez
- Marine Ecophysiology Group (EOMAR), Iu-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017, Canary Islands, Spain.
| | - Zaida Ortega
- Departamento de Ingeniería de Procesos, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017, Canary Islands, Spain.
| | - María Dolores Marrero
- Departamento de Ingeniería de Procesos, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017, Canary Islands, Spain.
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - May Gómez
- Marine Ecophysiology Group (EOMAR), Iu-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017, Canary Islands, Spain.
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20
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Stile N, Raguso C, Pedruzzi A, Cetojevic E, Lasagni M, Sanchez-Vidal A, Saliu F. Extraction of microplastic from marine sediments: A comparison between pressurized solvent extraction and density separation. Mar Pollut Bull 2021; 168:112436. [PMID: 33964667 DOI: 10.1016/j.marpolbul.2021.112436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
Due to the ecotoxicological effects, microplastics are considered a threat for the marine environment. Recent reports indicate their presence not only in subsurface water and in coastal beach sediments, but also in the deep-sea. Notwithstanding, there is still not a scientific consensus about the analytical procedure to be applied for their determination. In this work we compared the performance of two extraction methods: pressurized solvent extraction (PSE) and density separation. Sea sand and seafloor sediments were spiked with known amounts of polystyrene (PS), polyethylene (PE) and polypropylene (PP) microplastics and submitted to both the extraction procedures. Results showed that the PSE ensured higher recoveries for the smaller size particle fractions (89,2 ± 1.1% in the 50-150 μm range) whereas the density separation enabled precise recoveries for the larger size particles (SD = 1,5%). No significant differences in terms of blanks control were highlighted.
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Affiliation(s)
- Nicolo' Stile
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Clarissa Raguso
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Alice Pedruzzi
- BÜCHI Labortechnik AG, Meierseggstr. 40, Postfach, CH-9230 Flawil 1, Switzerland
| | - Emir Cetojevic
- BÜCHI Labortechnik AG, Meierseggstr. 40, Postfach, CH-9230 Flawil 1, Switzerland
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Anna Sanchez-Vidal
- Department of Earth and Ocean Dynamics, Faculty of Earth Sciences, University of Barcelona, 08028 Barcelona, Spain
| | - Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
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21
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Reinold S, Herrera A, Saliu F, Hernández-González C, Martinez I, Lasagni M, Gómez M. Evidence of microplastic ingestion by cultured European sea bass (Dicentrarchus labrax). Mar Pollut Bull 2021; 168:112450. [PMID: 33991989 DOI: 10.1016/j.marpolbul.2021.112450] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/12/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
The presence of microplastics (MPs) in the marine environment is a concerning topic due to the ecotoxicological effects and possible seafood contamination. Data is needed to evaluate human exposure and assess risks, in the context of a healthy and beneficial seafood consumption. While microplastic ingestion by wild fish has been reported since the early 70's, farmed fish are rarely investigated. Here, for the first time the presence of microplastics in fish cultivated in the coastal water of Tenerife (Canary Island, Spain) was evaluated. From 83 examined individuals, 65% displayed microplastics in their gastrointestinal tracts, with averages between 0.6 ± 0.8 (SD) and 2.7 ± 1.85 (SD) particles per fish. The total number of microplastics detected was 119. Fibres (81%) and fragments (12%) were the predominant shapes. FTIR analysis showed that fibres were mostly composed by Cellulose (55%) and Nylon (27%), whereas fragments by PE (25%) and PP (25%).
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Affiliation(s)
- Stefanie Reinold
- Marine Ecophysiology Group (EOMAR), Iu-ECOAQUA, Universidad de Las Palmas de Gran Canaria, 35017 Campus Universitario de Tafira, Canary Islands, Spain.
| | - Alicia Herrera
- Marine Ecophysiology Group (EOMAR), Iu-ECOAQUA, Universidad de Las Palmas de Gran Canaria, 35017 Campus Universitario de Tafira, Canary Islands, Spain.
| | - Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Carlos Hernández-González
- Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Santa Cruz de Tenerife, Canary Islands, Spain.
| | - Ico Martinez
- Marine Ecophysiology Group (EOMAR), Iu-ECOAQUA, Universidad de Las Palmas de Gran Canaria, 35017 Campus Universitario de Tafira, Canary Islands, Spain.
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - May Gómez
- Marine Ecophysiology Group (EOMAR), Iu-ECOAQUA, Universidad de Las Palmas de Gran Canaria, 35017 Campus Universitario de Tafira, Canary Islands, Spain.
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22
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Panio A, Fabbri Corsarini S, Bruno A, Lasagni M, Labra M, Saliu F. Determination of phthalates in fish fillets by liquid chromatography tandem mass spectrometry (LC-MS/MS): A comparison of direct immersion solid phase microextraction (SPME) versus ultrasonic assisted solvent extraction (UASE). Chemosphere 2020; 255:127034. [PMID: 32679634 DOI: 10.1016/j.chemosphere.2020.127034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/20/2020] [Accepted: 05/08/2020] [Indexed: 06/11/2023]
Abstract
Due to the increasing presence of plastic and plastic associated contaminants in the aquatic environments, the monitoring of this contamination in fish products and the understanding of possible human health implications is considered urgent. However, data are still relatively scarce, mostly due to the methodological challenges in the chemical analysis: these contaminants are ubiquitous and procedural contamination from the laboratory is frequent. In this work, we compared solid-phase microextraction (SPME) to ultrasonic assisted solvent extraction (UASE) as sample preparation methods for the liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) determination of phthalates in fish fillets. UASE was carried out with an acetone-hexane (1:1) solution and according to a reference procedure aimed to obtain the exhaustive extraction of the target analytes. SPME was carried out by applying C18 fibers in direct immersion mode and by using water/methanol 20:80 mixture to desorb the aliquot required for the analysis. Overall, SPME displayed an improved control of the background contamination and enabled lower LOQs. Precision, calculated as relative standard deviation (RSD) on replicates of a reference sample, was below 24% for both the method. Analysis of real samples purchased from Italian supermarkets showed that SPME might be an efficient tool for estimating the risk associated with fish consumption.
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Affiliation(s)
- Antonella Panio
- Earth and Environmental Sciences Department, University of Milano-Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | - Stefano Fabbri Corsarini
- Biotechnologies and Biosciences Department University of Milano-Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | - Antonia Bruno
- Earth and Environmental Sciences Department, University of Milano-Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | - Marina Lasagni
- Biotechnologies and Biosciences Department University of Milano-Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | - Massimo Labra
- Earth and Environmental Sciences Department, University of Milano-Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | - Francesco Saliu
- Biotechnologies and Biosciences Department University of Milano-Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy.
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Saliu F, Magoni C, Torelli A, Cozza R, Lasagni M, Labra M. Omega-3 rich oils from microalgae: A chitosan mediated in situ transesterification method. Food Chem 2020; 337:127745. [PMID: 32795855 DOI: 10.1016/j.foodchem.2020.127745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 07/17/2020] [Accepted: 07/30/2020] [Indexed: 12/27/2022]
Abstract
Microalgae are a precious source of polyunsaturated fatty acids (PUFA), however extraction is difficult due to the peculiar microalgae cell structure. Here we describe a new method based on the application of chitosan nanoaggregates as CO2 responsive emulsifier, used to promote the swelling of algae cell wall and the formation of a large oil - ethanol interphase area during the ethanolysis. Tests were carried out with Pseudokirchneriella subcapitata and Nannochloropsis sp. at different biomass/ethanol/chitosan ratios. CO2 was added to trigger demulsification to promote an easy recovery of the lipid fraction. The highest yields in PUFA were obtained with Nannochloropsis sp. (207.9 mg/g of oil) using 0.4% wt of chitosan and 1:10 biomass:ethanol ratio; 43.6 mg/g of linolenic acid were obtained from Pseudokirchneriella subcapitata. Overall, because the method employs ethanol, a generally recognized as safe (GRAS) solvent, and food grade additives, it is suited for the preparation of PUFA supplements.
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Affiliation(s)
- Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Chiara Magoni
- Bioscience Department, University of Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
| | - Anna Torelli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, University of Parma, Viale delle Scienze, 11/A 43124, Parma, Italy
| | - Radiana Cozza
- Laboratory of Plant Biology, Department of Biology, Ecology and Earth Science, University of Calabria, Arcavacata di Rende, 87030 Cosenza, Italy
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Massimo Labra
- Bioscience Department, University of Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
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Saliu F, Montano S, Lasagni M, Galli P. Biocompatible solid-phase microextraction coupled to liquid chromatography triple quadrupole mass spectrometry analysis for the determination of phthalates in marine invertebrate. J Chromatogr A 2020; 1618:460852. [DOI: 10.1016/j.chroma.2020.460852] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/03/2020] [Indexed: 10/25/2022]
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Saliu F, Magoni C, Lasagni M, Della Pergola R, Labra M. Multi-analytical characterization of perigonadal fat in bluefin tuna: from waste to marine lipid source. J Sci Food Agric 2019; 99:4571-4579. [PMID: 30883753 DOI: 10.1002/jsfa.9696] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 02/05/2019] [Accepted: 03/14/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Marine lipids are widely recognized as supplements beneficial to health in the human diet. Bluefin tuna, as most migrating fish, may have high and variable marine lipid contents in their tissues. The viscera of the specimens caught in the Mediterranean Sea are generally discarded. Only ovaries are (locally) used for artisanal seafood preparations. RESULTS A multi-analytical approach carried out using infrared (IR), nuclear magnetic resonance (NMR) and mass spectrometry (MS) revealed that the perigonadal fats usually discarded during bluefin tuna evisceration are characterized by a high relative abundance of polyunsaturated triacylglycerols (76.2% of dry mass), with docosahexaenoic (DHA, 22:6) and eicosapentaenoic (EPA, 20:5) acids preferentially located at the sn-2 position of the glycerol backbone. By contrast, in fats from the ovarian tissues, no wax esters and phospholipids were evidenced. Cholesterol was found in very low amounts (84 mg/100 g ovarian tissue). In vitro assays showed that this fatty material is rapidly hydrolyzed by lipase and is prone to auto-oxidation, especially if compared to the stable wax esters contained in the ovary. CONCLUSION The results show that the perigonadal fats of bluefin tuna, traditionally wasted after evisceration, may be an interesting source for the preparation of marine lipid supplements that do not require complex fractionation processes. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Milan, Italy
| | - Chiara Magoni
- Department of Biotechnology and Bioscience, University of Milano Bicocca, Milan, Italy
| | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Milan, Italy
| | - Roberto Della Pergola
- Earth and Environmental Science Department, University of Milano Bicocca, Milan, Italy
| | - Massimo Labra
- Department of Biotechnology and Bioscience, University of Milano Bicocca, Milan, Italy
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Saliu F, Montano S, Garavaglia MG, Lasagni M, Seveso D, Galli P. Microplastic and charred microplastic in the Faafu Atoll, Maldives. Mar Pollut Bull 2018; 136:464-471. [PMID: 30509830 DOI: 10.1016/j.marpolbul.2018.09.023] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/12/2018] [Accepted: 09/14/2018] [Indexed: 05/23/2023]
Abstract
Microplastics are recognized as a growing threat for the marine environment that may even affect areas generally considered pristine. In this work we surveyed the microplastic contamination in the Faafu Atoll (Maldives, Indian Ocean) across twelve sampling station, located either inside or outside the reef rim. Sediments and seawater samples were collected. Despite the remoteness of the atoll, the scarce local population and low touristic annual afflux, the detected average abundance were 0.32 ± 0.15 particles/m3 in the surface water and 22.8 ± 10.5 particles/m2 in the beach sediments. Polymers identified through Fourier-Transform Infrared spectroscopy were mostly polyethylene, polypropylene, polystyrene, polyvinylchloride, polyethyleneterephtalate, and polyamide. Elastomeric residues and charred microparticles were also found. In particular, the charred microparticles were prevalently located nearby the inhabited island and they might be considered a peculiarity of the area, related to local practice of burning plastic waste at the shoreline.
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Affiliation(s)
- Francesco Saliu
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Simone Montano
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island Faafu Atoll, Maldives
| | | | - Marina Lasagni
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Davide Seveso
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island Faafu Atoll, Maldives
| | - Paolo Galli
- Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; MaRHE Center (Marine Research and High Education Center), Magoodhoo Island Faafu Atoll, Maldives
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Collina E, Bortolami M, Franzoni F, Lasagni M, Piccinelli E, Pitea D. PCDD/F and dioxin-like PCB minimization: A 13-year experimental study along the flue gas cleaning system of a secondary aluminium refining plant. Chemosphere 2017; 181:409-417. [PMID: 28458216 DOI: 10.1016/j.chemosphere.2017.04.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/24/2017] [Accepted: 04/21/2017] [Indexed: 06/07/2023]
Abstract
A 13-years study shows that a careful design of the flue gas cleaning system of a full scale secondary aluminium refining plant results in a minimized and very stable emission of Polychlorinated Dibenzo-p-Dioxins (PCDD), Polychlorinated Dibenzo Furans (PCDF) and dioxin-like Polychlorinated Biphenyls (PCB). The value of equivalent toxicity of PCDD/F in the emission was definitely of an order of magnitude less than the regulation limit. In the initial flue gas cleaning system, the PCB mean fingerprint after the slow cooling of the flue gas was typical of de novo synthesis. Instead, in the presence of quenching, there was evidence that the fast cooling of flue gas prevented the PCB de novo synthesis. In fact, the PCB profile was similar to that in the air collected from the aspiration hoods for the quenching. The gas-phase and solid-phase partitioning of PCBs, before and after the fabric filters, highlights the predominant role of the vapor phase with respect to the total removal efficiency. The polycyclic aromatic hydrocarbons breakdown could be an additional de novo formation pathway even in industrial plants.
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Affiliation(s)
- Elena Collina
- Department of Earth and Environmental Sciences, Università di Milano Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | | | | | - Marina Lasagni
- Department of Earth and Environmental Sciences, Università di Milano Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy.
| | - Elsa Piccinelli
- Department of Earth and Environmental Sciences, Università di Milano Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
| | - Demetrio Pitea
- Department of Earth and Environmental Sciences, Università di Milano Bicocca, Piazza Della Scienza 1, 20126, Milano, Italy
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28
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Anzano M, Collina E, Piccinelli E, Lasagni M. Lab-scale pyrolysis of the Automotive Shredder Residue light fraction and characterization of tar and solid products. Waste Manag 2017; 64:263-271. [PMID: 28318960 DOI: 10.1016/j.wasman.2017.03.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 01/26/2017] [Accepted: 03/07/2017] [Indexed: 06/06/2023]
Abstract
The general aim of this study is the recovery of Automotive Shredder Residue (ASR). The ASR light fraction, or car fluff, that was collected at an Italian shredding plant was pyrolysed at various temperatures (500-800°C) in a lab-scale reactor. The condensable gases (tar) and solid residue yields increased with decreasing temperature, and these products were characterized to suggest a potential use to reclaim them. The higher heating value (HHV) of tar was 34-37MJ/kg, which is comparable with those of fossil fuels. Furthermore, the ash content was low (0.06-4.98%). Thus, tar can be used as an alternative fuel. With this prospect, the concentrations of polychlorinated dibenzodioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in tar were determined. The toxicity of tar changes with temperature (1-5ng I-TEQ/g), and the PCDFs significantly contribute to tar toxicity, which was 75-100% with a maximum of 99.6% at 700°C. Regarding the characterization of the solid residue, the low HHV (2.4-3.3MJ/kg) does not make it suitable for energy recovery. Regarding material recovery, we considered its use as a filler in construction materials or a secondary source for metals. It shows a high metal concentration (280,000-395,000mg/kg), which is similar at different pyrolysis temperatures. At 500°C, polycyclic aromatic hydrocarbons (PAHs) were not detected in the solid residue, whereas the maximum total PAH concentration (19.41ng/g, 700°C) was lower than that in fly ash from MSWI. In conclusion, 500°C is a suitable pyrolysis temperature to obtain valuable tar and solid residue.
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Affiliation(s)
- Manuela Anzano
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Italy.
| | - Elena Collina
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Italy.
| | - Elsa Piccinelli
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Italy.
| | - Marina Lasagni
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Italy.
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Boriati L, Fraschini E, Lasagni M, Pitea D. A comparative analysis of molecular electrostatic potentials of chlorinated dibenzo-p-dioxins in relation to their biological activity. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp/1991882631] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Bonaiti S, Calderon B, Collina E, Lasagni M, Mezzanotte V, Saez NA, Fullana A. Nitrogen activation of carbon-encapsulated zero-valent iron nanoparticles and influence of the activation temperature on heavy metals removal. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1755-1315/64/1/012070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Collina E, Lasagni M, Piccinelli E, Anzano MN, Pitea D. The rate-determining step in a low temperature PCDD/F formation from oxidative breakdown of native carbon in MSWI fly ash. Chemosphere 2016; 165:110-117. [PMID: 27639466 DOI: 10.1016/j.chemosphere.2016.09.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 09/02/2016] [Accepted: 09/06/2016] [Indexed: 06/06/2023]
Abstract
We developed a phenomenological approach to explain the kinetic experimental data of PCDD/F formation/destruction based on a reaction mechanism model at the congener group level. In the present work, we investigated the formation and destruction of PCDD/F on fly ash as a function of time at 280 °C, chlorine mass balance, evolution of the total equivalent toxicity and kinetic modelling. We determined that the volatilization process is negligible and that the reactive processes at short reaction times only become important above 300 °C. The results provide a substantial improvement on existing studies. We experimentally demonstrated, for the first time, that there is a correlation between the oxidative breakdown of native carbon and PCDD/F de novo synthesis. Data processing by our kinetic model showed that the formation of oxygen complexes C(O) was the determining step for de novo synthesis of PCDD/F. Indeed, the calculated reaction time at which the PCDD/F concentration was at a maximum (850 min) was greater than that calculated for the oxygen complexes C(O) (435 min). Moreover, the experimental carbon conversion efficiency for PCDD/F production (0.0032% at 600 min maximum) was in a very good agreement with the theoretical conversion (0.0041%).
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Affiliation(s)
- Elena Collina
- Dept. of Earth and Environmental Sciences, Università degli Studi di Milano - Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Marina Lasagni
- Dept. of Earth and Environmental Sciences, Università degli Studi di Milano - Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
| | - Elsa Piccinelli
- Dept. of Earth and Environmental Sciences, Università degli Studi di Milano - Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Manuela Nadia Anzano
- Dept. of Earth and Environmental Sciences, Università degli Studi di Milano - Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
| | - Demetrio Pitea
- Dept. of Earth and Environmental Sciences, Università degli Studi di Milano - Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
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Tatangelo V, Mangili I, Caracino P, Anzano M, Najmi Z, Bestetti G, Collina E, Franzetti A, Lasagni M. Biological devulcanization of ground natural rubber by Gordonia desulfuricans DSM 44462T strain. Appl Microbiol Biotechnol 2016; 100:8931-42. [DOI: 10.1007/s00253-016-7691-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/13/2016] [Accepted: 06/15/2016] [Indexed: 10/21/2022]
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Mangili I, Lasagni M, Anzano M, Collina E, Tatangelo V, Franzetti A, Caracino P, Isayev AI. Mechanical and rheological properties of natural rubber compounds containing devulcanized ground tire rubber from several methods. Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2015.10.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mangili I, Oliveri M, Anzano M, Collina E, Pitea D, Lasagni M. Corrigendum: “Full factorial experimental design to study the devulcanization of ground tire rubber in supercritical carbon dioxide” [J. Supercrit. Fluids 92 (2014) 249–256]. J Supercrit Fluids 2015. [DOI: 10.1016/j.supflu.2015.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mezzanotte V, Anzano M, Collina E, Marazzi FA, Lasagni M. Distribution and Removal of Polycyclic Aromatic Hydrocarbons in Two Italian Municipal Wastewater Treatment Plants in 2011–2013. Polycycl Aromat Compd 2015. [DOI: 10.1080/10406638.2014.957409] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Zampolli J, Collina E, Lasagni M, Di Gennaro P. Biodegradation of variable-chain-length n-alkanes in Rhodococcus opacus R7 and the involvement of an alkane hydroxylase system in the metabolism. AMB Express 2014; 4:73. [PMID: 25401074 PMCID: PMC4230829 DOI: 10.1186/s13568-014-0073-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 09/05/2014] [Indexed: 01/31/2023] Open
Abstract
Rhodococcus opacus R7 is a Gram-positive bacterium isolated from a polycyclic aromatic hydrocarbon contaminated soil for its versatile metabolism; indeed the strain is able to grow on naphthalene, o-xylene, and several long- and medium-chain n-alkanes. In this work we determined the degradation of n-alkanes in Rhodococcus opacus R7 in presence of n-dodecane (C12), n-hexadecane (C16), n-eicosane (C20), n-tetracosane (C24) and the metabolic pathway in presence of C12. The consumption rate of C12 was 88%, of C16 was 69%, of C20 was 51% and of C24 it was 78%. The decrement of the degradation rate seems to be correlated to the length of the aliphatic chain of these hydrocarbons. On the basis of the metabolic intermediates determined by the R7 growth on C12, our data indicated that R. opacus R7 metabolizes medium-chain n-alkanes by the primary alcohol formation. This represents a difference in comparison with other Rhodococcus strains, in which a mixture of the two alcohols was observed. By GC-MSD analysis we also identified the monocarboxylic acid, confirming the terminal oxidation. Moreover, the alkB gene cluster from R. opacus R7 was isolated and its involvement in the n-alkane degradation system was investigated by the cloning of this genomic region into a shuttle-vector E. coli-Rhodococcus to evaluate the alkane hydroxylase activity. Our results showed an increased biodegradation of C12 in the recombinant strain R. erythropolis AP (pTipQT1-alkR7) in comparison with the wild type strain R. erythropolis AP. These data supported the involvement of the alkB gene cluster in the n-alkane degradation in the R7 strain.
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Mangili I, Oliveri M, Anzano M, Collina E, Pitea D, Lasagni M. Full factorial experimental design to study the devulcanization of ground tire rubber in supercritical carbon dioxide. J Supercrit Fluids 2014. [DOI: 10.1016/j.supflu.2014.06.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mangili I, Collina E, Anzano M, Pitea D, Lasagni M. Characterization and supercritical CO2 devulcanization of cryo-ground tire rubber: Influence of devulcanization process on reclaimed material. Polym Degrad Stab 2014. [DOI: 10.1016/j.polymdegradstab.2014.02.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lasagni M, Collina E, Piccinelli E, Anzano MN, Piazzalunga A, Pitea D. Kinetic modeling of the formation and destruction of polychlorinated dibenzo-p-dioxin and dibenzofuran from fly ash native carbon at 300 °C. Environ Sci Technol 2013; 47:4349-4356. [PMID: 23528048 DOI: 10.1021/es304902f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The kinetics for the oxidative breakdown of native carbon in raw fly ash samples (RFA) and for the formation and destruction of polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF), abbreviated PCDD/F, were investigated using a flow-over solid system in which the RFA samples were thermally treated at 300 °C under synthetic air. This study investigated the correlation between the disappearance of the reagent and the formation of the products to gain insight into the underlying mechanisms that govern these reactions at congener groups level. The detailed analyses of the experimental concentration-time data revealed significant differences in the behavior between the 2,3,7,8-substituted PCDD and the 2,3,7,8-substituted PCDF, non-2,3,7,8-substituted PCDD and PCDF. The chlorine balance for the former was always negative, that is, chlorine was released regardless of reaction time and primarily resulted from the dechlorination of the hepta- and octa-homologues. However, for the others, the balance was substantially positive up to approximately 240 min and became negative at longer intervals when the dechlorination reactions took over. The processes involving PCDD and PCDF in which the thermal destruction was only partial were found to increase the total equivalent toxicity (TEQ) levels rather than reduce them.
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Affiliation(s)
- Marina Lasagni
- Department of Earth and Environmental Sciences, Università degli Studi di Milano - Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
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Anzano M, Tosti A, Lasagni M, Campiglio A, Pitea D, Collina E. Antimicrobial activity of thin metallic silver flakes, waste products of a manufacturing process. J Environ Sci (China) 2011; 23:1570-1577. [PMID: 22432296 DOI: 10.1016/s1001-0742(10)60586-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The aim of the research was to develop new products and processes from a manufacturing waste from an Italian metallurgic company. The company produced thin silver metallic films and the production scraps were silver flakes. The possibility to use the silver flakes in water disinfection processes was studied. The antimicrobial activity of the flakes was investigated in batch using Escherichia coli as Gram-negative microorganism model. The flakes did not show any antimicrobial activity, so they were activated with two different processes: thermal activation in reducing atmosphere and chemical activation, obtaining, respectively, reduced flakes (RF) and chemical flakes (CF). The flakes, activated with either treatment, showed antimicrobial activity against E. coli. The kill rate was dependent on the type of activated flakes. The chemical flakes were more efficient than reduced flakes. The kill rate determined for 1 g of CF, 1.0 +/- 0.2 min(-1), was greater than the kill rate determined for 1 g of RF, 0.069 +/- 0.004 min(-1). This was confirmed also by the minimum inhibitory concentration values. It was demonstrated that the antimicrobial capability was dependent on flakes amount and on the type of aqueous medium. Furthermore, the flakes maintained their properties also when used a second time. Finally, the antimicrobial activities of flakes were tested in an effluent of a wastewater treatment plant where a variety of heterotrophic bacteria were present.
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Affiliation(s)
- Manuela Anzano
- Department of Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, I-20126 Milano, Italy.
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Lasagni M, Collina E, Grandesso E, Piccinelli E, Pitea D. Kinetics of carbon degradation and PCDD/PCDF formation on MSWI fly ash. Chemosphere 2009; 74:377-383. [PMID: 18996567 DOI: 10.1016/j.chemosphere.2008.09.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2008] [Revised: 07/25/2008] [Accepted: 09/22/2008] [Indexed: 05/27/2023]
Abstract
The native carbon oxidation and PolyChloroDibenzo-p-Dioxins and PolyChloroDibenzoFurans, PCDD/F, formation were simultaneously studied at different temperatures (230-350 degrees C) and times (0-1440 min) in order to establish a direct correlation between the disappearance of the reagent and the formation of the products. The kinetic runs were conducted in an experimental set up where conditions were chosen to gain information on the role of fly ash deposits in cold zones of municipal solid waste incinerators in PCDD/F formation reaction. The carbon oxidation measured as the decrease of total organic carbon of fly ash was in agreement with the carbon evolved as sum of CO and CO(2). The carbon mass balance indicated an increase in the efficiency of carbon conversion in CO and CO(2) with temperature. The CO and CO(2) formation was the result of two parallel pseudo first order reactions thus giving significant information about the reaction mechanism. PCDD/F formation as a function of temperature showed that the maximum formation was achieved in a narrow range around 280 degrees C; the time effect at 280 degrees C was a progressive formation increase at least up to 900 min. The PCDF:PCDD molar ratio increased with temperature and time, and the most abundant homologues were HxCDD, HpCDD, OCDD for PCDD, and HxCDF, HpCDF within PCDF. These experimental results supported the hypothesis that the formation mechanism was the de novo synthesis.
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Affiliation(s)
- Marina Lasagni
- Dipartimento di Scienze dell'Ambiente e del Territorio, Università di Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
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Pitea D, Bortolami M, Collina E, Cortili G, Franzoni F, Lasagni M, Piccinelli E. Prevention of PCDD/F formation and minimization of their emission at the stack of a secondary aluminum casting plant. Environ Sci Technol 2008; 42:7476-7481. [PMID: 18939589 DOI: 10.1021/es800976s] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Results of an extensive 5 year study on a full-scale plant with the specific aim to investigate polychlorinated dibenzo-p-dioxin (PCDD) and polychlorinated dibenzo furan (PCDF) formation and release in a secondary aluminum casting plant are reported. PCDD and PCDF concentrations were evaluated for all the gaseous and solid streams (no liquid stream was present) as well as for the flue gas upstream and downstream of every single unit of the flue gas cleaning system. The study highlights PCDD and PCDF formation particularly in the narrow 320-360 degrees C range. To prevent formation reactions and/or minimize PCDD and PCDF concentration at the stack, effects of the fabric filter substitution, a quenching chamber and a postcombustor installation together with working conditions are investigated. The flue gas cleaning system results in PCDD and PCDF emission at stack of 0.1-0.2 ng I-TEQ/N m3 and in a mass flow of 250-550 nmol/h. The total PCDD and PCDF release into the environment is 0.06 g I-TEQ/yr and the corresponding emission factor, 0.35 microg I-TEQ/ton. It is shown that the global effects of the technological innovation on the reaction mechanisms are the prevention of PCDD/F formation by de novo synthesis and the minimization of their emission.
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Affiliation(s)
- Demetrio Pitea
- Dipartimento di Scienze dell'Ambiente e del Territorio, Università di Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy.
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Grandesso E, Ryan S, Gullett B, Touati A, Collina E, Lasagni M, Pitea D. Kinetic modeling of polychlorinated dibenzo-p-dioxin and dibenzofuran formation based on carbon degradation reactions. Environ Sci Technol 2008; 42:7218-7224. [PMID: 18939549 DOI: 10.1021/es8012479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Combustion experiments in a laboratory-scale fixed bed reactor were performed to determine the role of temperature and time in polychlorinated dibenzo-p-dioxin (PCDD) and polychlorinated dibenzofuran (PCDF) formation, allowing a global kinetic expression to be written for PCDD/F formation due to soot oxidation in fly ash deposits. Rate constants were calculated for the reactions of carbon degradation, PCDD/F formation, desorption, and degradation. For the first time, values for activation and thermodynamic parameters for the overall reactions have been calculated for PCDD/F formation, desorption, and destruction reactions. Good agreement was found between the calculated rate constants for carbon degradation and for PCDD/F formation, indicating that the two processes have a common rate-determining step. Moreover, PCDD/F formation was found to be still active after long reaction times (24 h). These results points out the importance of carbon deposits in the postcombustion stages that can account for emissions long after their formation (memory effects). The calculated formation rates were 7-15 times higher than those reported in the literature from fly ash-only experiments, indicating the importance of both soot and a continuous source of chlorine. A comparison between full-scale incinerator rates and model calculated rates indicates that our model based on carbon degradation kinetic can be a tool to estimate emissions.
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Affiliation(s)
- Emanuela Grandesso
- Office of Research and Development, National Risk Management Research Laboratory (E305-01), U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA.
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Fermo P, Delnevo E, Lasagni M, Polla S, de Vos M. Application of chemical and chemometric analytical techniques to the study of ancient ceramics from Dougga (Tunisia). Microchem J 2008. [DOI: 10.1016/j.microc.2007.11.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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46
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Di Gennaro P, Franzetti A, Bestetti G, Lasagni M, Pitea D, Collina E. Slurry phase bioremediation of PAHs in industrial landfill samples at laboratory scale. Waste Manag 2008; 28:1338-45. [PMID: 17851065 DOI: 10.1016/j.wasman.2007.06.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2006] [Revised: 04/16/2007] [Accepted: 06/05/2007] [Indexed: 05/17/2023]
Abstract
The effect of Tween 80 and selected bacteria additions on the bioremediation of PAH contaminated landfill soil (70.38mgkg(-1)) was evaluated in a slurry phase bioreactor. A phenanthrene-degrading consortium was selected by enrichment cultures and used as autochthonous inoculum. The Tween 80 addition increased the aqueous concentration of both high and low molecular weight PAHs. In the experiment with Tween 80 and inoculum addition, added microorganisms improved (>90%) the biodegradation of two- and three-ring PAHs as well as of the four-ring PAHs pyrene and fluoranthene. Biodegradation of the higher molecular weight PAHs was about 30% in experiments with Tween 80 addition, with and without inoculum addition.
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Affiliation(s)
- P Di Gennaro
- Department of Environmental Sciences, University of Milano-Bicocca, P.zza della Scienza 1, 20126 Milano, Italy
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Collina E, Lasagni M, Pitea D, Franzetti A, Di Gennaro P, Bestetti G. Bioremediation of Diesel Fuel Contaminated Soil: Effect of Non Ionic Surfactants and Selected Bacteria Addition. ACTA ACUST UNITED AC 2007; 97:799-805. [DOI: 10.1002/adic.200790065] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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48
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Di Gennaro P, Conforti P, Lasagni M, Bestetti G, Bernasconi S, Orsini F, Sello G. Dioxygenation of naphthalene byPseudomonas fluorescens N3 dioxygenase: Optimization of the process parameters. Biotechnol Bioeng 2006; 93:511-8. [PMID: 16193519 DOI: 10.1002/bit.20736] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The bioconversion of naphthalene to the 1,2-dihydro-1,2-dihydroxy derivative was performed in good yield using an Escherichia coli recombinant strain carrying Pseudomonas fluorescens N3 dioxygenase. However, the efficiency of such transformation is affected by many process parameters, and their optimization is essential to the scaling up of the process. The following process parameters were considered for optimization: cell concentration together with the corresponding glucose concentration (DCW/L); pH of medium; temperature; stirring speed; air flow; substrate concentration; Fe(2+) concentration; microelements concentration; reaction volume. We used a two-step multivariate experimental design to select important variables and assign them optimal values. The most significant parameters were selected by adopting a Plackett-Burman design, and were then correlated, using a full factorial design, with the experimental results. The experimental results illustrate that the optimized process of recombinant whole cell biotransformation in two-liquid phase systems enhances the naphthalene dihydrodiol yield threefold. This biotransformation opens the way to future experiments involving different substrates.
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Affiliation(s)
- P Di Gennaro
- Department of Environmental Sciences, University of Milano-Bicocca, Italy
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Collina E, Bestetti G, Di Gennaro P, Franzetti A, Gugliersi F, Lasagni M, Pitea D. Naphthalene biodegradation kinetics in an aerobic slurry-phase bioreactor. Environ Int 2005; 31:167-171. [PMID: 15661278 DOI: 10.1016/j.envint.2004.09.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The research was focused on the slurry-phase biodegradation of naphthalene in soil. Among ex situ techniques, the slurry phase offers the advantage of increased availability of contaminants to bacteria. From naphthalene contaminated soil, a Pseudomonas putida M8 strain capable to degrade naphthalene was selected. Experiments were performed in a stirred and oxygenated reactor. In this study, the influence of air flow rate and agitation rate on volatilisation and biodegradation of naphthalene was investigated. The hydrocarbon disappearance, the carbon dioxide production, and the ratio of total heterotrophic and naphthalene-degrading bacteria was monitored. The results obtained confirm that the selected bioremediation technology is successful in the treatment of contaminated soils.
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Affiliation(s)
- E Collina
- Dip. Scienze dell'Ambiente e del Territorio, Università di Milano-Bicocca, p. della Scienza 1, 20126 Milano, Italy.
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Di Gennaro P, Collina E, Franzetti A, Lasagni M, Luridiana A, Pitea D, Bestetti G. Bioremediation of diethylhexyl phthalate contaminated soil: a feasibility study in slurry- and solid-phase reactors. Environ Sci Technol 2005; 39:325-330. [PMID: 15667113 DOI: 10.1021/es035420d] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The aim of the research was to verify the possibility of applying bioremediation as a treatment strategy on a poly(vinyl chloride) (PVC) manufacturing site in the north of Italy contaminated by diethylhexyl phthalate (DEHP) at a concentration of 5.51 mg/g of dry soil. Biodegradation kinetic experiments with DEHP contaminated soil samples were performed in both slurry- and solid-phase systems. The slurry-phase results showed that the cultural conditions, such as N and P concentrations and the addition of a selected DEHP degrading strain, increased the natural DEHP degradation rate. On the basis of these data, experiments to simulate bioventing on contaminated soil columns were performed. The DEHP concentration reached 0.63 mg/g of dry soil in 76 days (89% of degradation). A kinetic equation was developed to fit the experimental data and to predict the concentration of contaminant after treatment. The data obtained are encouraging for a future in situ application of the bioventing technology.
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Affiliation(s)
- P Di Gennaro
- Dipartimento di Scienze dell'Ambiente e del Territorio, Università di Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, Italy
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