Analysis of microbeads in cosmetic products in the United Arab Emirates

被引：61

作者：

Habib, Rana Zeeshan ^{[1
]}

Abdoon, Morog Mohammed Salim ^{[1
]}

Al Meqbaali, Reem Mohartimed ^{[1
]}

Ghebremedhin, Furtuna ^{[2
]}

Elkashlan, Marim ^{[2
]}

Kittaneh, Wajeeh Faris ^{[3
]}

Cherupurakal, Nizamudeen ^{[4
]}

Mourad, Abdel-Hamid Ismail ^{[2
]}

Thiemann, Thies ^{[2
]}

Al Kindi, Ruwaya ^{[1
]}

机构：

[1] United Arab Emirates Univ, Dept Biol, POB 15551, Al Ain, U Arab Emirates

[2] United Arab Emirates Univ, Dept Chem, POB 15551, Al Ain, U Arab Emirates

[3] United Arab Emirates Univ, Dept Geol, POB 15551, Al Ain, U Arab Emirates

[4] United Arab Emirates Univ, Dept Mech Engn, POB 15551, Al Ain, U Arab Emirates

来源：

ENVIRONMENTAL POLLUTION | 2020年 / 258卷

关键词：

Facial and body scrubs; Microplastics; Microbeads; WASTE-WATER; SURFACE WATERS; MICROCRYSTALLINE CELLULOSE; MICROPLASTIC PARTICLES; ESTIMATED EMISSIONS; MARINE-ENVIRONMENT; PLASTIC POLLUTION; PERSONAL CARE; SPECTROSCOPY; SEDIMENTS;

D O I：

10.1016/j.envpol.2019.113831

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The microparticle content of 37 common facial and body scrubs commercially available in the United Arab Emirates was analyzed. The chemical composition, ash content, physical characteristics, loading, particle size and shape of the microparticles were determined. Only 11 out of 37 products were found to have microplastic content. Many of the remaining products exhibited microparticles composed of microcrystalline cellulose and crushed walnut shells. Differential scanning calorimetry showed that microplastic products had softening points as low as 84 degrees C. Plastic microbeads of 2 products were found to fuse at 100 degrees C. The fusion altered the flotation characteristics of the microbeads of one product. Heat treatment of the product at 100 degrees C in the presence of silica gel led to entrainment of the silica and partial fragmentation of the beads upon cooling. This may be understood as one mechanism of fragmentation of a microplastic with a low softening point in the presence of hard soil particles under temperature cycling. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页数：9

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