Generation of microplastics from the opening and closing of disposable plastic water bottles

There has recently been a significant increase in interest regarding the prevalence of microplastics in bottled water. Previous studies have shown that the composition of many of the microplastics in bottled water is consistent with the materials of the bottle and bottle cap. The focus of this study...

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Autor principal:	Tvisha Singh
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	abrasion bottled water drinking water generation mechanism microplastic nile red Public aspects of medicine RA1-1270
Acceso en línea:	https://doaj.org/article/f8a8d0774f8b46beb2c32939683f098e
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spelling	oai:doaj.org-article:f8a8d0774f8b46beb2c32939683f098e2021-11-06T06:05:16ZGeneration of microplastics from the opening and closing of disposable plastic water bottles1477-89201996-782910.2166/wh.2021.025https://doaj.org/article/f8a8d0774f8b46beb2c32939683f098e2021-06-01T00:00:00Zhttp://jwh.iwaponline.com/content/19/3/488https://doaj.org/toc/1477-8920https://doaj.org/toc/1996-7829There has recently been a significant increase in interest regarding the prevalence of microplastics in bottled water. Previous studies have shown that the composition of many of the microplastics in bottled water is consistent with the materials of the bottle and bottle cap. The focus of this study is to quantify microplastic particle generation from the cap and bottle interaction during open and close cycles. Nile Red dye was used for the detection of microplastics >4.7 μm in size. Microplastic contamination levels in the water were found to increase as the bottle cap is opened and closed repeatedly. The rate of generation of particles with bottle opening and closing cycles (553 ± 202 microplastics/L/cycle) is adequate to account for the total particle density in the water. This clearly demonstrates that the abrasion between the bottle cap and bottleneck is the dominant mechanism for the generation of microplastic contamination detected in bottled water. A large spread between the maximum and minimum levels of microplastic contamination for bottles from the same lot, regardless of the number of times the cap is opened and closed, suggests that mechanical tolerances in the manufacturing of bottles and caps might play an important role in microplastic generation. HIGHLIGHTS The opening and closing of the cap generates the majority of the microplastics in bottled water.; Improved repeatability of particle detection with Galaxy Count software.; Improved protocol for detecting microplastics in bottled water.;Tvisha SinghIWA Publishingarticleabrasionbottled waterdrinking watergeneration mechanismmicroplasticnile redPublic aspects of medicineRA1-1270ENJournal of Water and Health, Vol 19, Iss 3, Pp 488-498 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	abrasion bottled water drinking water generation mechanism microplastic nile red Public aspects of medicine RA1-1270
spellingShingle	abrasion bottled water drinking water generation mechanism microplastic nile red Public aspects of medicine RA1-1270 Tvisha Singh Generation of microplastics from the opening and closing of disposable plastic water bottles
description	There has recently been a significant increase in interest regarding the prevalence of microplastics in bottled water. Previous studies have shown that the composition of many of the microplastics in bottled water is consistent with the materials of the bottle and bottle cap. The focus of this study is to quantify microplastic particle generation from the cap and bottle interaction during open and close cycles. Nile Red dye was used for the detection of microplastics >4.7 μm in size. Microplastic contamination levels in the water were found to increase as the bottle cap is opened and closed repeatedly. The rate of generation of particles with bottle opening and closing cycles (553 ± 202 microplastics/L/cycle) is adequate to account for the total particle density in the water. This clearly demonstrates that the abrasion between the bottle cap and bottleneck is the dominant mechanism for the generation of microplastic contamination detected in bottled water. A large spread between the maximum and minimum levels of microplastic contamination for bottles from the same lot, regardless of the number of times the cap is opened and closed, suggests that mechanical tolerances in the manufacturing of bottles and caps might play an important role in microplastic generation. HIGHLIGHTS The opening and closing of the cap generates the majority of the microplastics in bottled water.; Improved repeatability of particle detection with Galaxy Count software.; Improved protocol for detecting microplastics in bottled water.;
format	article
author	Tvisha Singh
author_facet	Tvisha Singh
author_sort	Tvisha Singh
title	Generation of microplastics from the opening and closing of disposable plastic water bottles
title_short	Generation of microplastics from the opening and closing of disposable plastic water bottles
title_full	Generation of microplastics from the opening and closing of disposable plastic water bottles
title_fullStr	Generation of microplastics from the opening and closing of disposable plastic water bottles
title_full_unstemmed	Generation of microplastics from the opening and closing of disposable plastic water bottles
title_sort	generation of microplastics from the opening and closing of disposable plastic water bottles
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/f8a8d0774f8b46beb2c32939683f098e
work_keys_str_mv	AT tvishasingh generationofmicroplasticsfromtheopeningandclosingofdisposableplasticwaterbottles
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Generation of microplastics from the opening and closing of disposable plastic water bottles

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