Abstract：Micro/nano-plastics are becoming a research hotspot due to the characteristics of wide distribution, small particle size, difficulty in degradation, and can adsorb toxic substances, etc. However, the information on the status of environmental contamination and removal is rare. In this review, the research status of micro/nano-plastics in drinking water distribution systems (DWDS) was discussed, which was from the perspectives of the sources, migration characteristics and safety hazards of water quality. The results showed that residual micro/nano-plastics can be carried into DWDS by the effluent of water treatment plants. Besides, pipe material, flow velocity, mechanical wear and residual chlorine may affect the release of micro/nano-plastics. The spatial and temporal variation of micro/nano-plastics was affected by the inherent characteristics (e.g., density and charge) in DWDS. In the process of drinking water transmission and distribution, the water quality and safety of the DWDS has been considered that is relevant to the reaction between micro/nano-plastics with organics, microorganisms and other substances. Therefore, the review makes a prospect for the future research direction, in order to provide theory basis for further understanding of the impact of micro/nano-plastics on the drinking water safety, in addition to the control of micro/nano-plastics.
郑莹莹, 张可佳, 岑程, 毛如寅, 张土乔. 供水管网中微/纳米塑料的赋存及污染特性[J]. 中国环境科学, 2022, 42(4): 1610-1617.
ZHENG Ying-ying, ZHANG Ke-jia, CEN Cheng, MAO Ru-yin, ZHANG Tu-qiao. The abundance and contamination characteristics of micro/nano-plastics in drinking water distribution systems. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(4): 1610-1617.
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