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Seaweeds as a major source of dietary microplastics exposure in East Asia

Food Chemistry 2024 10 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Lianzhen Li, Lianzhen Li, Xiangyang Xiao, Xiangyang Xiao, Willie J.G.M. Peijnenburg Xiangyang Xiao, Ruijie Li, Ruijie Li, Ruijie Li, Yongming Luo, Yongming Luo, Yongming Luo, Shaochong Liu, Lianzhen Li, Lianzhen Li, Shaochong Liu, Xiangyang Xiao, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Lianzhen Li, Lianzhen Li, Lianzhen Li, Lianzhen Li, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Shaochong Liu, Shaochong Liu, Shaochong Liu, Yongming Luo, Yongming Luo, Yongming Luo, Ruijie Li, Lianzhen Li, Willie J.G.M. Peijnenburg Xiangyang Xiao, Willie J.G.M. Peijnenburg Ruijie Li, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Lianzhen Li, Lianzhen Li, Lianzhen Li, Lianzhen Li, Lianzhen Li, Lianzhen Li, Yongming Luo, Willie J.G.M. Peijnenburg Lianzhen Li, Ruijie Li, Ruijie Li, Willie J.G.M. Peijnenburg Ruijie Li, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Xiangyang Xiao, Willie J.G.M. Peijnenburg Na Yin, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Lianzhen Li, Lianzhen Li, Lianzhen Li, Ruijie Li, Ruijie Li, Ruijie Li, Ruijie Li, Yongming Luo, Yongming Luo, Yongming Luo, Yongming Luo, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Xiaoyu Zhao, Willie J.G.M. Peijnenburg Xiangyang Xiao, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Shaochong Liu, Shaochong Liu, Willie J.G.M. Peijnenburg Yongming Luo, Yongming Luo, Xiaoyu Zhao, Lianzhen Li, Willie J.G.M. Peijnenburg Ruijie Li, Willie J.G.M. Peijnenburg Lianzhen Li, Xilin She, Ruijie Li, Yongming Luo, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Xilin She, Xilin She, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Na Yin, Na Yin, Na Yin, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Xilin She, Lianzhen Li, Xilin She, Yongming Luo, Yongming Luo, Willie J.G.M. Peijnenburg Yongming Luo, Yongming Luo, Willie J.G.M. Peijnenburg Yongming Luo, Xilin She, Lianzhen Li, Willie J.G.M. Peijnenburg Lianzhen Li, Xilin She, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Xilin She, Xilin She, Lianzhen Li, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Yongming Luo, Xilin She, Lianzhen Li, Yongming Luo, Yongming Luo, Yongming Luo, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Yongming Luo, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Xiumin Cui, Yongming Luo, Xiumin Cui, Yongming Luo, Xiumin Cui, Xiumin Cui, Lianzhen Li, Yongming Luo, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Xilin She, Xilin She, Yongming Luo, Yongming Luo, Lianzhen Li, Yongming Luo, Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Willie J.G.M. Peijnenburg Yongming Luo, Yongming Luo, Yongming Luo, Lianzhen Li, Willie J.G.M. Peijnenburg

Summary

This study found that seaweed is a major and previously overlooked source of dietary microplastic exposure in East Asia, with Chinese consumers estimated to ingest over 17,000 microplastic particles per year through seaweed alone. Seaweed-derived exposure accounted for up to 45.5% of total dietary microplastic intake, surpassing all other food sources. These findings are important for the millions of people in East Asian countries who regularly consume kelp and nori as dietary staples.

Models

Human

Microplastics (MPs) occurrence in marine ecosystems is well known, but their accumulation in seaweeds and subsequent human exposure remain understudied. This research quantifies MPs presence in two commonly consumed seaweeds, kelp (Saccharina japonica) and nori (Pyropia yezoensis), in East Asia, revealing widespread contamination dominated by microfibers (<500 μm). Based on dietary patterns, human uptake through seaweed consumption was estimated and quantified. Notably, Chinese people consume an estimated 17,034 MPs/person/year through seaweed consumption, representing 13.1% of their total annual MPs intake. This seaweeds-derived exposure surpasses all other dietary sources, contributing up to 45.5% of overall MPs intake. The highest intake was in South Korea, followed by North Korea, China, and Japan. This research identifies seaweeds as a major, previously overlooked route of dietary MPs exposure. These findings are crucial for comprehensive risk assessments of seaweed consumption and the development of mitigation strategies, particularly for populations in East Asian countries.

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