Nanoplastics: Status and Knowledge Gaps in the Finalization of Environmental Risk Assessments

Nanoplastics (NPs) are particles ranging in size between 1 and 1000 nm, and they are a form of environmental contaminant of great ecotoxicological concern. Although NPs are widespread across ecosystems, they have only recently garnered growing attention from both the scientific community and regulat...

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Main Authors: Andrea Masseroni, Cristiana Rizzi, Chiara Urani, Sara Villa
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Toxics
Subjects:
Online Access:https://www.mdpi.com/2305-6304/10/5/270
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author Andrea Masseroni
Cristiana Rizzi
Chiara Urani
Sara Villa
author_facet Andrea Masseroni
Cristiana Rizzi
Chiara Urani
Sara Villa
author_sort Andrea Masseroni
collection DOAJ
description Nanoplastics (NPs) are particles ranging in size between 1 and 1000 nm, and they are a form of environmental contaminant of great ecotoxicological concern. Although NPs are widespread across ecosystems, they have only recently garnered growing attention from both the scientific community and regulatory bodies. The present study reviews scientific literature related to the exposure and effects of NPs and identifies research gaps that impede the finalization of related environmental risk assessments (ERAs). Approximately 80 articles published between 2012 and 2021 were considered. Very few studies (eight articles) focused on the presence of NPs in biotic matrices, whereas the majority of the studies (62 articles) assessed the lethal and sublethal effects of NPs on aquatic and terrestrial organisms. Whilst many studies focused on nude NPs, only a few considered their association with different aggregates. Amongst NPs, the effects of polystyrene are the most extensively reported to date. Moreover, the effects of NPs on aquatic organisms are better characterized than those on terrestrial organisms. NP concentrations detected in water were close to or even higher than the sublethal levels for organisms. An ERA framework specifically tailored to NPs is proposed.
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spelling doaj.art-940a631db5f341e1b42ed28b20190f8d2023-11-23T13:22:15ZengMDPI AGToxics2305-63042022-05-0110527010.3390/toxics10050270Nanoplastics: Status and Knowledge Gaps in the Finalization of Environmental Risk AssessmentsAndrea Masseroni0Cristiana Rizzi1Chiara Urani2Sara Villa3Department of Earth and Environmental Sciences DISAT, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, ItalyDepartment of Earth and Environmental Sciences DISAT, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, ItalyDepartment of Earth and Environmental Sciences DISAT, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, ItalyDepartment of Earth and Environmental Sciences DISAT, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, ItalyNanoplastics (NPs) are particles ranging in size between 1 and 1000 nm, and they are a form of environmental contaminant of great ecotoxicological concern. Although NPs are widespread across ecosystems, they have only recently garnered growing attention from both the scientific community and regulatory bodies. The present study reviews scientific literature related to the exposure and effects of NPs and identifies research gaps that impede the finalization of related environmental risk assessments (ERAs). Approximately 80 articles published between 2012 and 2021 were considered. Very few studies (eight articles) focused on the presence of NPs in biotic matrices, whereas the majority of the studies (62 articles) assessed the lethal and sublethal effects of NPs on aquatic and terrestrial organisms. Whilst many studies focused on nude NPs, only a few considered their association with different aggregates. Amongst NPs, the effects of polystyrene are the most extensively reported to date. Moreover, the effects of NPs on aquatic organisms are better characterized than those on terrestrial organisms. NP concentrations detected in water were close to or even higher than the sublethal levels for organisms. An ERA framework specifically tailored to NPs is proposed.https://www.mdpi.com/2305-6304/10/5/270nanoplasticsenvironmental risk assessmenteffectsexposurepolystyrene
spellingShingle Andrea Masseroni
Cristiana Rizzi
Chiara Urani
Sara Villa
Nanoplastics: Status and Knowledge Gaps in the Finalization of Environmental Risk Assessments
Toxics
nanoplastics
environmental risk assessment
effects
exposure
polystyrene
title Nanoplastics: Status and Knowledge Gaps in the Finalization of Environmental Risk Assessments
title_full Nanoplastics: Status and Knowledge Gaps in the Finalization of Environmental Risk Assessments
title_fullStr Nanoplastics: Status and Knowledge Gaps in the Finalization of Environmental Risk Assessments
title_full_unstemmed Nanoplastics: Status and Knowledge Gaps in the Finalization of Environmental Risk Assessments
title_short Nanoplastics: Status and Knowledge Gaps in the Finalization of Environmental Risk Assessments
title_sort nanoplastics status and knowledge gaps in the finalization of environmental risk assessments
topic nanoplastics
environmental risk assessment
effects
exposure
polystyrene
url https://www.mdpi.com/2305-6304/10/5/270
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