Ingested microplastics: Do humans eat one credit card per week?

IF 6.6 Q1 ENGINEERING, ENVIRONMENTAL Journal of hazardous materials letters Pub Date : 2022-11-01 DOI:10.1016/j.hazl.2022.100071
Martin Pletz
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引用次数: 7

Abstract

Ingested Microplastic (MP) particles can harm the human body. Estimations of the total mass of ingested MP particles correspond to 50 plastic bags per year (Bai et al., 2022), one credit card per week (Gruber et al., 2022), or a median value of 4.1 μg/week for adults (Mohamed Nor et al., 2021). The first two estimations are based on an analysis (Senathirajah et al., 2021) that predicts a total ingested mass of MP particles mi,MP of 0.1–5 g/week. This work revisits and evaluates this calculation and compares its results and methods to Mohamed Nor et al. (2021). Senathirajah combines data of averaged MP particle masses m¯MP from papers that reported MP particle sizes and MP particle counts nMP in shellfish, salt, beer, and water based on other papers that detected MP particles. Combined with the estimated weekly consumption of those consumables, they compute mi,MP. This work raises some serious issues of Senathirajah in the way they combine data and they obtained particle sizes. It concludes that Senathirajah overestimates mi,MP by several orders of magnitude and that mi,MP can be considered as a rather irrelevant factor for the toxic effects of MP particles on the human body.

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摄入的微塑料:人类每周吃掉一张信用卡吗?
摄入的微塑料(MP)颗粒会对人体造成伤害。估计摄入的MP颗粒的总质量相当于每年50个塑料袋(Bai等人,2022年),每周一张信用卡(Gruber等人,2022年),或者成年人的中位数为4.1 μg/周(Mohamed Nor等人,2021年)。前两个估计是基于一项分析(Senathirajah et al., 2021),该分析预测MP颗粒的总摄入质量为0.1-5 g/周。这项工作重新审视和评估了这一计算,并将其结果和方法与Mohamed Nor等人(2021)进行了比较。Senathirajah结合了来自报告MP颗粒大小的论文的平均MP颗粒质量m¯MP和基于检测到MP颗粒的其他论文的贝类,盐,啤酒和水中的MP颗粒计数nMP的数据。结合这些消耗品的每周估计消费量,他们计算出mi和MP。这项工作提出了Senathirajah在结合数据和获得颗粒大小的方式上的一些严重问题。它的结论是,Senathirajah高估了mmp数个数量级,mmp可被视为与mmp颗粒对人体的毒性作用相当无关的因素。
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来源期刊
Journal of hazardous materials letters
Journal of hazardous materials letters Pollution, Health, Toxicology and Mutagenesis, Environmental Chemistry, Waste Management and Disposal, Environmental Engineering
CiteScore
10.30
自引率
0.00%
发文量
0
审稿时长
20 days
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