Assessing sources and fractions of metals associated with environmental plastics: a case study in Lake Como (Italy)

Carnati, Stefano; Pozzi, Andrea; Spanu, Davide; Monticelli, Damiano; Bettinetti, Roberta; Boldrocchi, Ginevra; Nizzetto, Luca; Binda, Gilberto

doi:10.1039/d3va00254c

Cited by 3 publications

(3 citation statements)

References 97 publications

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“…Actually, the aging process does not significantly affect the total Sb content in PET plastics, whereas it increases its leaching. The latter may be ascribed to a higher surface area and lower hydrophobicity of environmental samples, favoring water-polymer interactions, as observed in other studies with metallic additives [47,51]. Among the environmental samples, blue PET (PET-B-E) leaches the most total Sb, followed by orange (PET-O-E) and transparent (PET-T-E) PET.…”

Section: Evaluation Of the Greenness Of The Analytical Protocolsupporting

confidence: 57%

“…Seven plastic samples were selected for this study: three differently colored environmental samples (blue, orange, and transparent), three differently colored virgin materials (blue, orange, and transparent), and one recycled PET sample (see additional details and sample label details in the Materials and Methods section). The polymer type was preliminary verified by an attenuated total reflectance infrared spectroscopy (ATR-IR) analysis ( Figure S3 ) showing the characteristic peaks of C=O stretching (at 1715 cm −1 ), C-O stretching of aromatic esters (1245 cm −1 ), C-O stretching of aliphatic esters (1100 cm −1 ), and C-H bending (720 cm −1 ) [ 47 ].…”

Section: Resultsmentioning

confidence: 99%

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Optimizing Antimony Speciation Analysis via Frontal Chromatography–ICP-MS to Explore the Release of PET Additives

López,

Binda,

Roncoroni

et al. 2024

Molecules

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Antimony (Sb) contamination poses significant environmental and health concerns due to its toxic nature and widespread presence, largely from anthropogenic activities. This study addresses the urgent need for an accurate speciation analysis of Sb, particularly in water sources, emphasizing its migration from polyethylene terephthalate (PET) plastic materials. Current methodologies primarily focus on total Sb content, leaving a critical knowledge gap for its speciation. Here, we present a novel analytical approach utilizing frontal chromatography coupled with inductively coupled plasma mass spectrometry (FC-ICP-MS) for the rapid speciation analysis of Sb(III) and Sb(V) in water. Systematic optimization of the FC-ICP-MS method was achieved through multivariate data analysis, resulting in a remarkably short analysis time of 150 s with a limit of detection below 1 ng kg−1. The optimized method was then applied to characterize PET leaching, revealing a marked effect of the plastic aging and manufacturing process not only on the total amount of Sb released but also on the nature of leached Sb species. This evidence demonstrates the effectiveness of the FC-ICP-MS approach in addressing such an environmental concern, benchmarking a new standard for Sb speciation analysis in consideration of its simplicity, cost effectiveness, greenness, and broad applicability in environmental and health monitoring.

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Section: Evaluation Of the Greenness Of The Analytical Protocolsupporting

confidence: 57%

Section: Resultsmentioning

confidence: 99%

Optimizing Antimony Speciation Analysis via Frontal Chromatography–ICP-MS to Explore the Release of PET Additives

López,

Binda,

Roncoroni

et al. 2024

Molecules

Self Cite

View full text Add to dashboard Cite

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“…Consequently, they can also reshape the potential exposure pathways and toxicological effects on zooplankton organisms [ 93 ]. In addition, ageing of MPs can favor the leaching of (toxic) chemicals present in the fragments, enhancing negative effects on organisms [ 94 , 95 ].…”

Section: Zooplankton and Microplastics In Lab Studies: Assessing Haza...mentioning

confidence: 99%

Freshwater Lacustrine Zooplankton and Microplastic: An Issue to Be Still Explored

Lawrence,

Santolini,

Binda

et al. 2023

Toxics

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Lakes are essentially interlinked to humans as they provide water for drinking, agriculture, industrial and domestic purposes. The upsurge of plastic usage, its persistence, and potential detrimental effects on organisms cause impacts on the trophic food web of freshwater ecosystems; this issue, however, still needs to be explored. Zooplankton worldwide is commonly studied as an indicator of environmental risk in aquatic ecosystems for several pollutants. The aim of the review is to link the existing knowledge of microplastic pollution in zooplankton to assess the potential risks linked to these organisms which are at the first level of the lacustrine trophic web. A database search was conducted through the main databases to gather the relevant literature over the course of time. The sensitivity of zooplankton organisms is evident from laboratory studies, whereas several knowledge gaps exist in the understanding of mechanisms causing toxicity. This review also highlights insufficient data on field studies hampering the understanding of the pollution extent in lakes, as well as unclear trends on ecosystem–level cascading effects of microplastics (MPs) and mechanisms of toxicity (especially in combination with other pollutants). Therefore, this review provides insight into understanding the overlooked issues of microplastic in lake ecosystems to gain an accurate ecological risk assessment.

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The interaction between plastics and microalgae affects community assembly and nutrient availability

Binda,

Carnati,

Costa

et al. 2024

Commun Earth Environ

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The presence of plastics and microplastics in water environments has raised concerns for potential negative impacts. The broader ecological implications for ecosystem functioning are, however, still unknown. The interaction between phytoplankton community and plastics has, for example, been overlooked. Here, we investigated the role of plastic as a substrate for biofilm growth and how this affects the dispersal of terrestrial microalgae, potentially altering the assembly of pelagic communities. When exposing an artificially assembled microalgae community to pristine and biofouled plastic under laboratory-controlled conditions, we found that only biofouled plastic affected the final community structure and the content of available nutrients in water. This is due to the exchanged algal species between the biofilm and the pelagic community. The results from this batchwise pilot scale study indicate that plastic can act as a substrate for benthic and pelagic species, potentially affecting ecosystem functions, which have been overlooked so far.

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Assessing sources and fractions of metals associated with environmental plastics: a case study in Lake Como (Italy)

Abstract: We applied a multi-tiered analytical approach to assess the sources of metals in environmental plastic samples. This approach permits evaluation of the impact of plastic pollution on metal bioavailability.

Cited by 3 publications

References 97 publications

Optimizing Antimony Speciation Analysis via Frontal Chromatography–ICP-MS to Explore the Release of PET Additives

Optimizing Antimony Speciation Analysis via Frontal Chromatography–ICP-MS to Explore the Release of PET Additives

Freshwater Lacustrine Zooplankton and Microplastic: An Issue to Be Still Explored

The interaction between plastics and microalgae affects community assembly and nutrient availability

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