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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Sign in to save

Dynamic signatures of microplastic distribution across the water column of Yangtze River Estuary: Complicated implication of tidal effects

Marine Environmental Research 2023 17 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Feng Zhang, Feng Zhang, Changjun Li, Mengyu Bai, Mengyu Bai, Changjun Li, Changjun Li, Daoji Li Lixin Zhu, Daoji Li Nian Wei, Daoji Li Nian Wei, Changjun Li, Peilin Jiang, Peilin Jiang, Xiaohui Wang, Nian Wei, Changjun Li, Changjun Li, Zhiwei Zhang, Feng Zhang, Kai Liu, Zhiwei Zhang, Mengyu Bai, Mengyu Bai, Daoji Li Daoji Li Daoji Li Xiaohui Wang, Xiaohui Wang, Xiaohui Wang, Xiaohui Wang, Xiaohui Wang, Xiaohui Wang, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Changjun Li, Changjun Li, Changjun Li, Nian Wei, Nian Wei, Tianning Wu, Mengyu Bai, Nian Wei, Nian Wei, Nian Wei, Changjun Li, Lixin Zhu, Nian Wei, Changjun Li, Lixin Zhu, Changjun Li, Lixin Zhu, Lixin Zhu, Nian Wei, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Lixin Zhu, Xiaohui Wang, Xiaohui Wang, Xiaohui Wang, Daoji Li Daoji Li Feng Zhang, Feng Zhang, Feng Zhang, Zhiwei Zhang, Yihe Wang, Yihe Wang, Peilin Jiang, Peilin Jiang, Lixin Zhu, Mengyu Bai, Lixin Zhu, Nian Wei, Daoji Li Lixin Zhu, Jinzhao Wang, Lixin Zhu, Lixin Zhu, Xiaohui Wang, Lixin Zhu, Lixin Zhu, Yihe Wang, Changjun Li, Changjun Li, Feng Zhang, Nian Wei, Changjun Li, Changjun Li, Changjun Li, Xiaohui Wang, Feng Zhang, Xiaohui Wang, Xiaohui Wang, Feng Zhang, Lixin Zhu, Nian Wei, Jinzhao Wang, Xiaohui Wang, Mengyu Bai, Nian Wei, Lixin Zhu, Xiaohui Wang, Changjun Li, Xiaohui Wang, Nian Wei, Nian Wei, Daoji Li Changjun Li, Changjun Li, Daoji Li Nian Wei, Daoji Li Lixin Zhu, Nian Wei, Nian Wei, Feng Zhang, Feng Zhang, Feng Zhang, Lixin Zhu, Lixin Zhu, Kai Liu, Zhiwei Zhang, Tianning Wu, Daoji Li Daoji Li Lixin Zhu, Daoji Li Daoji Li Daoji Li Xiaohui Wang, Daoji Li Daoji Li Nian Wei, Lixin Zhu, Nian Wei, Xiaohui Wang, Nian Wei, Changjun Li, Changjun Li, Xiaohui Wang, Daoji Li Daoji Li Daoji Li Daoji Li Daoji Li Feng Zhang, Daoji Li Zhiwei Zhang, Daoji Li Lixin Zhu, Xiaohui Wang, Tianning Wu, Xiaohui Wang, Daoji Li Tianning Wu, Daoji Li Zhiwei Zhang, Daoji Li Tianning Wu, Feng Zhang, Nian Wei, Daoji Li Daoji Li Changjun Li, Lixin Zhu, Daoji Li Changjun Li, Zhiwei Zhang, Changjun Li, Changjun Li, Daoji Li Lixin Zhu, Feng Zhang, Feng Zhang, Feng Zhang, Nian Wei, Jinzhao Wang, Hui Wu, Feng Zhang, Peilin Jiang, Peilin Jiang, Mengyu Bai, Peilin Jiang, Lixin Zhu, Daoji Li Peilin Jiang, Peilin Jiang, Lixin Zhu, Daoji Li Daoji Li Daoji Li

Summary

Seasonal sampling of microplastic concentrations throughout the Yangtze River Estuary water column found tidal dynamics strongly influenced distribution, with researchers developing a model estimating 2154 tons per year of microplastic flux into the East China Sea and a tide impact factor index of 38-58%.

Study Type Environmental

Riverine microplastic (MP) discharge into the ocean contributes greatly to global MP contamination, yet our understanding of this process remains primitive. To deepen our interpretation of the dynamic MP variation throughout the estuarine water columns, we sampled at Xuliujing, the saltwater intrusion node of the Yangtze River Estuary, over the course of ebb and flood tides in four seasons (July and October 2017, January and May 2018 respectively). We observed that the collision of downstream and upstream currents contributed to the high MP concentration and that the mean MP abundance fluctuated with the tide. A model of microplastics residual net flux (MPRF-MODEL), taking the seasonal abundance and vertical distribution of MP along with current velocity into consideration, was developed to predict the net flux of MP throughout the full water columns. 2154 ± 359.7 t/year of MP was estimated to flow into the East China Sea via the River in 2017-2018. Our study suggests that riverine MP flux can be overestimated due to reciprocating current carried MP from the estuary. Using the tidal and seasonal variation in MP distribution, we calculated the tide impact factor index (TIFI) for the Yangtze River Estuary to be between 38.11% and 58.05%. In summary, this study provides a baseline of MP flux research in the Yangtze River for similar tidal-controlled rivers and a contextual understanding of how to appropriately sample and accurately estimate in a dynamic estuary system. The redistribution of microplastics may be impacted by complex tide processes. Although not observed in this study, it may merit investigation.

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