CH<sub>4</sub> and CO<sub>2</sub> Emissions from the Decomposition of Microplastics in the Bottom Sediment—Preliminary Studies

In recent years, a significant new threat to the environment has emerged, namely contamination with microplastics and their degradation products. The decomposition products of microplastics include, among others, greenhouse gases that are responsible for climate change. The article analyzes the emis...

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Main Authors: Małgorzata Kida, Sabina Ziembowicz, Piotr Koszelnik
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Environments
Subjects:
Online Access:https://www.mdpi.com/2076-3298/9/7/91
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author Małgorzata Kida
Sabina Ziembowicz
Piotr Koszelnik
author_facet Małgorzata Kida
Sabina Ziembowicz
Piotr Koszelnik
author_sort Małgorzata Kida
collection DOAJ
description In recent years, a significant new threat to the environment has emerged, namely contamination with microplastics and their degradation products. The decomposition products of microplastics include, among others, greenhouse gases that are responsible for climate change. The article analyzes the emission of carbon dioxide and methane during the decomposition of various types of plastics in the form of microplastics in the bottom sediments in the presence of water. The research covers plastic materials made of polyvinyl chloride with a high and low content of plasticizers, polypropylene, and rubber. All analyzed microplastics generated the tested greenhouse gases. However, the quantity of gases generated depended on the type of polymer used. The highest concentration of methane, at 25,253 ppm after 180 days of incubation, was characterized by high plasticizer polyvinyl chloride, i.e., di (2-ethylhexyl) phthalate. In the case of carbon dioxide emissions, the values were comparable. The maximum value was obtained at 65,662 ppm for polypropylene microplastics. The influence of particle size on the amount of the emissions of these gases was also investigated. During the decomposition of microplastics in the bottom sediments in the presence of water, it was observed that the smaller the microplastic particles are, the greater the production of methane and carbon dioxide.
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spelling doaj.art-7e1cb5da0f3b4719990a2a96b6f1de392023-12-01T22:08:06ZengMDPI AGEnvironments2076-32982022-07-01979110.3390/environments9070091CH<sub>4</sub> and CO<sub>2</sub> Emissions from the Decomposition of Microplastics in the Bottom Sediment—Preliminary StudiesMałgorzata Kida0Sabina Ziembowicz1Piotr Koszelnik2Department of Environmental and Chemistry Engineering, Faculty of Civil and Environmental Engineering and Architecture, Rzeszow University of Technology, AVE Powstańców Warszawy 6, 35-959 Rzeszów, PolandDepartment of Environmental and Chemistry Engineering, Faculty of Civil and Environmental Engineering and Architecture, Rzeszow University of Technology, AVE Powstańców Warszawy 6, 35-959 Rzeszów, PolandDepartment of Environmental and Chemistry Engineering, Faculty of Civil and Environmental Engineering and Architecture, Rzeszow University of Technology, AVE Powstańców Warszawy 6, 35-959 Rzeszów, PolandIn recent years, a significant new threat to the environment has emerged, namely contamination with microplastics and their degradation products. The decomposition products of microplastics include, among others, greenhouse gases that are responsible for climate change. The article analyzes the emission of carbon dioxide and methane during the decomposition of various types of plastics in the form of microplastics in the bottom sediments in the presence of water. The research covers plastic materials made of polyvinyl chloride with a high and low content of plasticizers, polypropylene, and rubber. All analyzed microplastics generated the tested greenhouse gases. However, the quantity of gases generated depended on the type of polymer used. The highest concentration of methane, at 25,253 ppm after 180 days of incubation, was characterized by high plasticizer polyvinyl chloride, i.e., di (2-ethylhexyl) phthalate. In the case of carbon dioxide emissions, the values were comparable. The maximum value was obtained at 65,662 ppm for polypropylene microplastics. The influence of particle size on the amount of the emissions of these gases was also investigated. During the decomposition of microplastics in the bottom sediments in the presence of water, it was observed that the smaller the microplastic particles are, the greater the production of methane and carbon dioxide.https://www.mdpi.com/2076-3298/9/7/91greenhouse gasesmicroplasticsbottom sedimentsemission
spellingShingle Małgorzata Kida
Sabina Ziembowicz
Piotr Koszelnik
CH<sub>4</sub> and CO<sub>2</sub> Emissions from the Decomposition of Microplastics in the Bottom Sediment—Preliminary Studies
Environments
greenhouse gases
microplastics
bottom sediments
emission
title CH<sub>4</sub> and CO<sub>2</sub> Emissions from the Decomposition of Microplastics in the Bottom Sediment—Preliminary Studies
title_full CH<sub>4</sub> and CO<sub>2</sub> Emissions from the Decomposition of Microplastics in the Bottom Sediment—Preliminary Studies
title_fullStr CH<sub>4</sub> and CO<sub>2</sub> Emissions from the Decomposition of Microplastics in the Bottom Sediment—Preliminary Studies
title_full_unstemmed CH<sub>4</sub> and CO<sub>2</sub> Emissions from the Decomposition of Microplastics in the Bottom Sediment—Preliminary Studies
title_short CH<sub>4</sub> and CO<sub>2</sub> Emissions from the Decomposition of Microplastics in the Bottom Sediment—Preliminary Studies
title_sort ch sub 4 sub and co sub 2 sub emissions from the decomposition of microplastics in the bottom sediment preliminary studies
topic greenhouse gases
microplastics
bottom sediments
emission
url https://www.mdpi.com/2076-3298/9/7/91
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AT sabinaziembowicz chsub4subandcosub2subemissionsfromthedecompositionofmicroplasticsinthebottomsedimentpreliminarystudies
AT piotrkoszelnik chsub4subandcosub2subemissionsfromthedecompositionofmicroplasticsinthebottomsedimentpreliminarystudies