Threat of plastic ageing in marine environment. Adsorption/desorption of micropollutants

Kedzierski, Mikaël; D'Almeida, Mélanie; Magueresse, Anthony; Grand, Adélaïde Le; Duval, Hélène; César, Guy; Sire, Olivier; Bruzaud, Stéphane; Tilly, Véronique Le

doi:10.1016/j.marpolbul.2017.12.059

Cited by 176 publications

(47 citation statements)

References 57 publications

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“…Another research approach would be to integrate the various programs developed during this study, as well as those previously developed (Kedzierski et al, 2019(Kedzierski et al, , 2018(Kedzierski et al, , 2017, into the POSEIDON software. Thus, POSEIDON would allow people working on microplastics to use a set of digital tools to facilitate their work.…”

Section: Resultsmentioning

confidence: 99%

A machine learning algorithm for high throughput identification of FTIR spectra: Application on microplastics collected in the Mediterranean Sea

et al. 2019

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The development of methods to automatically determine the chemical nature of microplastics by FTIR-ATR spectra is an important challenge. A machine learning method, named k-nearest neighbors classification, has been applied on spectra of microplastics collected during Tara Expedition in the Mediterranean Sea (2014). To realize these tests, a learning database composed of 969 microplastic spectra has been created. Results show that the machine learning process is very efficient to identify spectra of classical polymers such as poly(ethylene), but also that the learning database must be enhanced with less common microplastic spectra. Finally, this method has been applied on more than 4000 spectra of unidentified microplastics. The verification protocol showed less than 10% difference in the results between the proposed automated method and a human expertise, 75% of which can be very easily corrected. Highlights ► A machine learning algorithm was developed to determine the chemical nature of microplastics. ► This method allows a fast and reliable automated identification even when several thousand of FTIR spectra have to be studied.► This method is the first part of a software dedicated to the study of microplastics: POSEIDON.

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Section: Resultsmentioning

confidence: 99%

A machine learning algorithm for high throughput identification of FTIR spectra: Application on microplastics collected in the Mediterranean Sea

et al. 2019

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“…A high concentration of heavy metals causes cellular and tissue damage, leading to a variety of adverse effects and human diseases [84][85][86][87][88][89]. Among metals, Al, Sb, As, Ba, Cd, Cr (II), Co, Cu, Pb, Hg, Ni, Se, Sn and V are defined metal-estrogens showing high affinity to estrogen receptors because they can mimic estrogen activation; for this reason, they are considered harmful and potentially linked with breast cancer [89][90][91]. Cadmium has been suggested to take part in the promotion of cellular apoptosis and DNA methylation, in providing oxidative stress, in causing damage to DNA, in increasing bone fractures in postmenopausal women, and in lipid peroxidation [77,92,93].…”

Section: Heavy Metalsmentioning

confidence: 99%

A Detailed Review Study on Potential Effects of Microplastics and Additives of Concern on Human Health

Campanale

Massarelli

Savino

et al. 2020

IJERPH

1,166

451

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The distribution and abundance of microplastics into the world are so extensive that many scientists use them as key indicators of the recent and contemporary period defining a new historical epoch: The Plasticene. However, the implications of microplastics are not yet thoroughly understood. There is considerable complexity involved to understand their impact due to different physical–chemical properties that make microplastics multifaceted stressors. If, on the one hand, microplastics carry toxic chemicals in the ecosystems, thus serving as vectors of transport, they are themselves, on the other hand, a cocktail of hazardous chemicals that are added voluntarily during their production as additives to increase polymer properties and prolong their life. To date, there is a considerable lack of knowledge on the major additives of concern that are used in the plastic industry, on their fate once microplastics dispose into the environment, and on their consequent effects on human health when associated with micro and nanoplastics. The present study emphasizes the most toxic and dangerous chemical substances that are contained in all plastic products to describe the effects and implications of these hazardous chemicals on human health, providing a detailed overview of studies that have investigated their abundance on microplastics. In the present work, we conducted a capillary review of the literature on micro and nanoplastic exposure pathways and their potential risk to human health to summarize current knowledge with the intention of better focus future research in this area and fill knowledge gaps.

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“…Most plastics are durable and resistant to degradation; this result clearly differentiates biodegradation from oxidative and UV-promoted degradation processes, which could lead to the formation of microplastics (<5 mm) [33,34]. Microplastics pose a severe risk to marine ecosystems, as they can enter the food chain when they are ingested by different species [35,36], adsorb hydrophobic pollutants [37,38], and leach additives [39,40]. Besides their presence in the ocean, they have been found in freshwaters [41,42], soils [43,44], and in the atmosphere [45,46], giving evidence of their ubiquitous presence in the environment.…”

Section: Introductionmentioning

confidence: 99%

Degradation of Plastics under Anaerobic Conditions: A Short Review

et al. 2020

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Plastic waste is an issue of global concern because of the environmental impact of its accumulation in waste management systems and ecosystems. Biodegradability was proposed as a solution to overcome this problem; however, most biodegradable plastics were designed to degrade under aerobic conditions, ideally fulfilled in a composting plant. These new plastics could arrive to anaerobic environments, purposely or frequently, because of their mismanagement at the end of their useful life. This review analyzes the behavior of biodegradable and conventional plastics under anaerobic conditions, specifically in anaerobic digestion systems and landfills. A review was performed in order to identify: (a) the environmental conditions found in anaerobic digestion processes and landfills, as well as the mechanisms for degradation in those environments; (b) the experimental methods used for the assessment of biodegradation in anaerobic conditions; and (c) the extent of the biodegradation process for different plastics. Results show a remarkable variability of the biodegradation rate depending on the type of plastic and experimental conditions, with clearly better performance in anaerobic digestion systems, where temperature, water content, and inoculum are strictly controlled. The majority of the studied plastics showed that thermophilic conditions increase degradation. It should not be assumed that plastics designed to be degraded aerobically will biodegrade under anaerobic conditions, and an exact match must be done between the specific plastics and the end of life options that they will face.

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Threat of plastic ageing in marine environment. Adsorption/desorption of micropollutants

Cited by 176 publications

References 57 publications

A machine learning algorithm for high throughput identification of FTIR spectra: Application on microplastics collected in the Mediterranean Sea

A machine learning algorithm for high throughput identification of FTIR spectra: Application on microplastics collected in the Mediterranean Sea

A Detailed Review Study on Potential Effects of Microplastics and Additives of Concern on Human Health

Degradation of Plastics under Anaerobic Conditions: A Short Review

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