Do poly(lactic acid) microplastics instigate a threat? A perception for their dynamic towards environmental pollution and toxicity

Ainali, Nina Maria; Kalaronis, Dimitrios; Εvgenidou, Εleni; Kyzas, George Z.; Bobori, Dimitra; Kaloyianni, Martha; Yang, Xin; Bikiaris, Dimitrios N.; Lambropoulou, Dimitra A.

doi:10.1016/j.scitotenv.2022.155014

Cited by 105 publications

(43 citation statements)

References 80 publications

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“…The biodegradation of PLA is greatly influenced by environmental factors [ 176 ]. The start of hydrolysis at room temperature takes six months, while biodegradation takes one year, and microorganisms play almost no role in the beginning of hydrolysis, which is one of the characteristics of PLA [ 176 , 177 ].…”

Section: Biodegradable Film Materialsmentioning

confidence: 99%

Progress in the Degradability of Biodegradable Film Materials for Packaging

Guo

2022

Membranes

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In today’s world, the problem of “white pollution” is becoming more and more serious, and many countries have paid special attention to this problem, and it has become one of the most important tasks to reduce polymer waste and to protect the environment. Due to the degradability, safety, economy and practicality of biodegradable packaging film materials, biodegradable packaging film materials have become a major trend in the packaging industry to replace traditional packaging film materials, provided that the packaging performance requirements are met. This paper reviews the degradation mechanisms and performance characteristics of biodegradable packaging film materials, such as photodegradation, hydrodegradation, thermo-oxidative degradation and biodegradation, focuses on the research progress of the modification of biodegradable packaging film materials, and summarizes some challenges and bottlenecks of current biodegradable packaging film materials.

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Section: Biodegradable Film Materialsmentioning

confidence: 99%

Progress in the Degradability of Biodegradable Film Materials for Packaging

Guo

2022

Membranes

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“…Subsequently, when bioplastics are disposed of or leaked into the open environment, they may accumulate, persisting for an unknown but significant amount of time in the form of fragments and/or microplastics (i.e., particles <5 mm). , Although experimental evidence is limited, bioplastics will likely disintegrate into larger quantities of micro-bioplastics due to their widely accepted susceptibility to hydrolysis than the common nondegradable plastics, within the same exposure time . Studies have already shown that micro-bioplastics generated from bioplastics, in a similar fashion to their nondegradable counterparts, have diverse negative impacts on organisms from exposure to ecosystem functioning and are vectors for transport of other contaminants such as harmful chemicals. ,,− …”

Section: Introductionmentioning

confidence: 99%

“…As global bioplastic production and consumption continue to increase, there is growing concern regarding the potential for environmental pollution as well as the release of associated harmful chemicals (particularly additives) from micro-bioplastics in the environment. ,,,− Understanding the fate of micro-bioplastics in different environmental compartments is therefore of utmost importance. The occurrence of micro-bioplastic residues (i.e., PCL, PLA, PBS, PHB, starch-based plastic (SBP)) in environmental samples, specifically in air, soil, ice cores, WWTP effluents, and rivers , and the tissues of aquatic organisms have been reported.…”

Section: Introductionmentioning

confidence: 99%

Identification and Quantification of Micro-Bioplastics in Environmental Samples by Pyrolysis–Gas Chromatography–Mass Spectrometry

Okoffo

Chan

Rauert

et al. 2022

Environ. Sci. Technol.

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Bioplastics are materials that are biobased and/or biodegradable, but not necessarily both. Concerns about environmental plastic pollution are constantly growing with increasing demand for substituting fossil-based plastics with those made using renewable resource feedstocks. For many conventional bioplastics to completely decompose/degrade, they require specific environmental conditions that are rarely met in natural ecosystems, leading to rapid formation of micro-bioplastics. As global bioplastic production and consumption/use continue to increase, there is growing concern regarding the potential for environmental pollution from micro-bioplastics. However, the actual extent of their environmental occurrence and potential impacts remains unclear, and there is insufficient mass concentration-based quantitative data due to the lack of quantitative analytical methods. This study developed and validated an analytical method coupling pressurized liquid extraction and pyrolysis–gas chromatography–mass spectrometry combined with thermochemolysis to simultaneously identify and quantify five targeted micro-bioplastics (i.e., polylactic acid (PLA), polyhydroxyalkanoate, polybutylene succinate, polycaprolactone, and polybutylene adipate terephthalate (PBAT)) in environmental samples on a polymer-specific mass-based concentration. The recovery of spiked micro-bioplastics in environmental samples (biosolids) ranged from 74 to 116%. The limits of quantification for the target micro-bioplastics were between 0.02 and 0.05 mg/g. PLA and PBAT were commonly detected in wastewater, biosolids, and sediment samples at concentrations between 0.07 and 0.18 mg/g. The presented analytical method enables the accurate identification, quantification, and monitoring of micro-bioplastics in environmental samples. This study quantified five micro-bioplastic types in complex environmental samples for the first time, filling in gaps in our knowledge about bioplastic pollution and providing a useful methodology and important reference data for future research.

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“…On the one hand, there are few answers about the impact of government trust on environmental governance satisfaction, especially the relationship between government trust and environmental governance satisfaction at different levels, while government trust is an important source of modern government legitimacy. On the other hand, the influence of the perception of environmental pollution on the satisfaction of environmental governance is rarely discussed from the perspective of subjective and objective relationships, while the perception of environmental pollution can directly reflect the current situation of the government’s environmental governance [ 28 ]. Based on this, this study will explore the impact of government trust and environmental pollution perception on environmental governance satisfaction.…”

Section: Introductionmentioning

confidence: 99%

Government Trust, Environmental Pollution Perception, and Environmental Governance Satisfaction

Ruan

Liu

et al. 2022

IJERPH

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Environmental governance is related to the healthy living standard of human beings and the sustainable development of an economic society. It is of great significance to explore the influence of government trust and environmental pollution perception on environmental governance satisfaction to improve the performance of government environmental governance. Based on the CSS2019 survey data, 3872 survey samples were statistically analyzed, and the optimal scale regression model was used to analyze the relationship between government trust, environmental pollution perception, and environmental governance satisfaction. The results showed that 52.27% of the respondents believed that the satisfaction of environmental governance was good, and both government trust and environmental pollution perception had significant positive effects on the satisfaction of environmental governance. The trust level of the central government, district and county governments, and township governments shows a “differential government trust” state, which is pyramidal. However, the impact of government trust on environmental governance satisfaction shows an inverted pyramid structure, and the township government has the largest effect, which is not matched with the distribution of government trust level. The influence effect of air pollution perception is relatively large, and the public is sensitive to air pollution. Government trust has an impact on the satisfaction of environmental governance through the “expectation-response” path. People are close to the township government and have the opportunity to contact and interact with the township government and its staff. They can directly observe the governance performance and share the public goods of environmental governance. Therefore, it is necessary to further improve the trust level of township governments, strengthen the control of air pollution and improve the township government's environmental governance ability.

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Do poly(lactic acid) microplastics instigate a threat? A perception for their dynamic towards environmental pollution and toxicity

Cited by 105 publications

References 80 publications

Progress in the Degradability of Biodegradable Film Materials for Packaging

Progress in the Degradability of Biodegradable Film Materials for Packaging

Identification and Quantification of Micro-Bioplastics in Environmental Samples by Pyrolysis–Gas Chromatography–Mass Spectrometry

Government Trust, Environmental Pollution Perception, and Environmental Governance Satisfaction

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