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A catchment-wide microplastic pollution investigation of the Yangtze River: The pollution and ecological risk of tributaries are non-negligible

Journal of Hazardous Materials 2024 30 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Teng Wang, Feng Yuan, Teng Wang, Yongcheng Ding, Teng Wang, Teng Wang, Teng Wang, Feng Yuan, Yongcheng Ding, Feng Yuan, Feng Yuan, Feng Yuan, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Xinqing Zou Hongyu Chen, Hongyu Chen, Hongyu Chen, Hongyu Chen, Hongyu Chen, Teng Wang, Teng Wang, Teng Wang, Teng Wang, Yongcheng Ding, Feng Yuan, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Xinqing Zou Xinqing Zou Xinqing Zou Yongcheng Ding, Hongyu Chen, Xinqing Zou Xinqing Zou Xinqing Zou Hongyu Chen, Yongcheng Ding, Teng Wang, Xinqing Zou Xinqing Zou Xinqing Zou Yongcheng Ding, Teng Wang, Yongcheng Ding, Teng Wang, Teng Wang, Teng Wang, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Teng Wang, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Teng Wang, Teng Wang, Teng Wang, Feng Yuan, Xinqing Zou Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Feng Yuan, Feng Yuan, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Feng Yuan, Yongcheng Ding, Xinqing Zou Yongcheng Ding, Xinqing Zou Feng Yuan, Yongcheng Ding, Yongcheng Ding, Feng Yuan, Yongcheng Ding, Hongyu Chen, Teng Wang, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Teng Wang, Yongcheng Ding, Guanghe Fu, Yongcheng Ding, Yongcheng Ding, Teng Wang, Hexi Zhang, Hexi Zhang, Teng Wang, Yongcheng Ding, Yongcheng Ding, Xinqing Zou Yongcheng Ding, Hongyu Chen, Yongcheng Ding, Yuyang Song, Hexi Zhang, Yongcheng Ding, Yuyang Song, Teng Wang, Yongcheng Ding, Guanghe Fu, Hexi Zhang, Feng Yuan, Yongcheng Ding, Chenglong Wang, Feng Yuan, Yongcheng Ding, Teng Wang, Hongyu Chen, Teng Wang, Feng Yuan, Teng Wang, Feng Yuan, Feng Yuan, Guanghe Fu, Guanghe Fu, Feng Yuan, Yameng Wang, Guanghe Fu, Hongyu Chen, Guanghe Fu, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Guanghe Fu, Xinqing Zou Yameng Wang, Yameng Wang, Ying Wang, Yongcheng Ding, Yongcheng Ding, Yongcheng Ding, Teng Wang, Guanghe Fu, Guanghe Fu, Guanghe Fu, Guanghe Fu, Yuyang Song, Guanghe Fu, Guanghe Fu, Guanghe Fu, Guanghe Fu, Guanghe Fu, Yuyang Song, Guanghe Fu, Guanghe Fu, Guanghe Fu, Guanghe Fu, Xinqing Zou Yongcheng Ding, Yongcheng Ding, Guanghe Fu, Xinqing Zou Yuyang Song, Xinqing Zou Guanghe Fu, Yuyang Song, Guanghe Fu, Teng Wang, Guanghe Fu, Xinqing Zou Xinqing Zou Xinqing Zou Guanghe Fu, Teng Wang, Teng Wang, Xinqing Zou Guanghe Fu, Guanghe Fu, Xinqing Zou

Summary

Researchers conducted a large-scale survey of microplastic pollution across the entire Yangtze River catchment, including both the main river and its tributaries. They found that tributaries contributed significantly to the overall microplastic load and posed ecological risks that had been previously overlooked. The study emphasizes that effective pollution management for major river systems must account for contamination flowing in from smaller waterways.

Study Type Environmental

The Yangtze River is an important global channel for plastics and microplastics (MPs) to enter the sea. However, the existing research on MPs in the Yangtze River has primarily focused on the mainstream region, without regarding the occurrence, spatial distribution, and ecological risks associated with tributaries, as well as their relationship with the mainstream. To address this knowledge gap, we conducted a large-scale catchment-wide investigation of the surface water in the Yangtze River, encompassing MPs (48 µm-5 mm) of the mainstream and 15 important tributaries. Tributaries and upstream regions exhibited relatively higher levels of MPs compared with the mainstream and different sections of the river. The distribution of MPs is primarily influenced by the emission of arable land and the pH of water. Notably, the upstream tributary areas demonstrated the highest ecological risks associated with MPs. Further analysis highlighted that the tributaries accounted for a contribution ranging from 16% to 67% in quantity and from 14% to 90% in mass of the microplastics observed in the mainstream. Our results suggest that the pollution of tributaries and their associated ecological risk migration must be effectively regulated.

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