Inclusion of shape parameters increases the accuracy of 3D models for microplastics mass quantification

被引：18

作者：

Tanoiri, Hiraku ^{[1
]}

Nakano, Haruka ^{[1
,2
]}

Arakawa, Hisayuki ^{[1
]}

Hattori, Ricardo Shohei ^{[1
]}

Yokota, Masashi ^{[1
]}

机构：

[1] Tokyo Univ Marine Sci & Technol, Minato Ku, Konan 4-5-7, Tokyo 1088477, Japan

[2] Natl Inst Adv Ind Sci & Technol, Environm Management Res Inst, 16-1 Onogawa, Tsukuba, Ibaraki 3958569, Japan

来源：

MARINE POLLUTION BULLETIN | 2021年 / 171卷

关键词：

Microplastics; Quantification; Characterization; Image analysis; Mass estimation; Methodology; PLASTIC DEBRIS; ESTUARY SYSTEM; WATER; POLYSTYRENE; INGESTION; ABUNDANCE; SEA;

D O I：

10.1016/j.marpolbul.2021.112749

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

As microplastics may bring about adverse effects on living organisms, it is important to establish more precise quantification approaches to better understand their dynamics. One method to determine the concentration of microplastics is to estimate their mass using three-dimensional (3D) models, but its accuracy is not well known. In this study, we evaluated the shape of the particles and verified the accuracy of a 3D model-based mass estimation using samples from a tidal flat facing Tokyo Bay. The particle shape evaluation suggested that the microplastics were flat and irregular in shape; based on these data, we created two types of models to estimate their mass. As a result, an accuracy of mass estimation by our model was higher than other models that consider the slenderness and flatness of particles. The optimization of mass estimation methods based on 3D models may improve the reliability of microplastic evaluation in monitoring studies.

引用

页数：10

共 58 条

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