Chemical characterization of microplastic particles formed in airborne waste discharged from sewer pipe repairs
Rattachement africain : us. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Microplastic particles are of increasing environmental concern due to the widespread uncontrolled degradation of various commercial products made of plastic and their associated waste disposal. Recently, common technology used to repair sewer pipes was reported as one of the emission sources of airborne microplastics in urban areas. This research presents results of the multi-modal comprehensive chemical characterization of the microplastic particles related to waste discharged in the pipe repair process and compares particle composition with the components of uncured resin and cured plastic composite used in the process. Analysis of these materials employs complementary use of surface-enhanced Raman spectroscopy, scanning transmission X-ray spectro-microscopy, single particle mass spectrometry, and direct analysis in real-time high-resolution mass spectrometry. It is shown that the composition of the relatively large (100 μm) microplastic particles resembles components of plastic material used in the process. In contrast, the composition of the smaller (micrometer and sub-micrometer) particles is significantly different, suggesting their formation from unintended polymerization of water-soluble components occurring in drying droplets of the air-discharged waste. In addition, resin material type influences the composition of released microplastic particles. Results are further discussed to guide the detection and advanced characterization of airborne microplastics in future field and laboratory studies pertaining to sewer pipe repair technology.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Chemical characterization of microplastic particles formed in airborne waste discharged from sewer pipe repairs
- Date Crossref
- 01/01/2023
- Éditeur
- Royal Society of Chemistry (RSC)
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Purdue University West Lafayette Department of Chemistry pays non établi dans la noticeUniversité ou école supérieure
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Pacific Northwest National Laboratory Chemical Physics & Analysis pays non établi dans la noticeStructure de recherche
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Environmental Molecular Sciences Laboratory pays non établi dans la noticeStructure de recherche
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Sonoma Technology (United States) pays non établi dans la noticeEntreprise
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Fraund Consulting pays non établi dans la noticeInstitution
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Lyles School of Civil Engineering pays non établi dans la noticeUniversité ou école supérieure
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Inc. Sonoma Technology pays non établi dans la noticeEntreprise
Department of Chemistry — Purdue University West Lafayette, Chemical Physics & Analysis — Pacific Northwest National Laboratory et Environmental Molecular Sciences Laboratory, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.