期刊
REGIONAL STUDIES IN MARINE SCIENCE
卷 69, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.rsma.2023.103287
关键词
Microplastics; Pollution indexes evaluation; Tokyo Bay; Kuroshio-Oyashio contract area; East China Sea
This study evaluated the level of microplastic pollution in marine environments around Japan using the pollution load index, polymer risk index, and pollution risk index. The results showed low to moderate pollution levels in each area, but predicted an increase in pollution levels in the future. The study highlights the importance of taking action to prevent additional plastic pollution and the need for continued monitoring of microplastics in the environment.
Researchers have made a significant effort to reveal plastic pollution's presence and consequences worldwide; however, there are no standard methods to evaluate the level of microplastic pollution. In this context, pollution index assessment in the marine environments contributes to showing a criteria of pollutants. Therefore, the pollution load index (PLI), the polymer risk index (H), and the pollution risk index (PRI) were estimated based on the MPs abundance and polymer-type information in situ for five areas around Japan's sea. According to H values, the contamination due to MPs presented low to moderate pollution levels in each area. Whereas the PRI classified the pollution levels from low (offshore) to very high (coast). Based on MPs' predicted concentrations for 2030 and 2060, the PRI is expected to increase, reaching a very high-pollution level even for offshore areas. The results of this study emphasize the importance of action to prevent additional plastic pollution and the importance of continued monitoring of the MPs in the environment.
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