期刊
PROGRESS IN EARTH AND PLANETARY SCIENCE
卷 8, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1186/s40645-020-00405-4
关键词
Adsorption; Bioaccumulation; Contaminant; Microplastic; Pollutant; Vector
资金
- Postgraduate Research Grant (PGRG), Universiti Malaysia Terengganu (UMT) [55193/1]
- Specific-Topic Research Projects by the Ministry of Science and Technology (MOST), Taiwan [MOST 109-2621-M-019-001]
Microplastic pollution has environmental and ecological impacts on plants, animals, and humans globally. It acts as a vector for pollutants, particularly in marine ecosystems, leading to bioaccumulation. Further research is needed to understand the potential effects on human health and factors influencing pollutant sorption and bioaccumulation by microplastic.
Microplastic pollutes water, land, air, and groundwater environments not only visually but also ecologically for plants, animals, and humans. Microplastic has been reported to act as vectors by sorbing pollutants and contributing to the bioaccumulation of pollutants, particularly in marine ecosystems, organisms, and subsequently food webs. The inevitable exposure of microplastic to humans emphasises the need to review the potential effects, exposure pathways, and toxicity of microplastic toward human health. Therefore, this review was aimed to reveal the risks of pollutant sorption and bioaccumulation by microplastic toward humans, as well as the dominant types of pollutants sorbed by microplastic, and the types of pollutants that are bioaccumulated by microplastic in the living organisms of the marine ecosystem. The possible factors influencing the sorption and bioaccumulation of pollutants by microplastic in marine ecosystems were also reviewed. The review also revealed the prevailing types of microplastic, abundance of microplastic, and geographical distribution of microplastic in the aquatic environment globally. The literature review revealed that microplastic characteristics, chemical interactions, and water properties played a role in the sorption of pollutants by microplastic. The evidence of microplastic posing a direct medical threat to humans is still lacking albeit substantial literature has reported the health hazards of microplastic-associated monomers, additives, and pollutants. This review recommends future research on the existing knowledge gaps in microplastic research, which include the toxicity of microplastic, particularly to humans, as well as the factors influencing the sorption and bioaccumulation of pollutants by microplastic.
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