On November 28, 2024, the Division of Resource Conservation and Environmental Protection of the Beijing Municipal Commission of Development and Reform successfully held the project conclusion meeting of the "Evaluation of the Occurrence Status of Microplastics in the Water of Important River Basins and Farmland Soils of Typical Ecologically Sensitive Areas in Beijing". This project focused on water in important river basins and farmland soils of typical ecologically sensitive areas in Beijing. Through in-depth research and monitoring, the occurrence status of microplastics in the water of important river basins and that of residual plastic film and microplastics in farmland soils was analyzed. And by comparing it with the microplastic pollution in similar water bodies and soils at home and abroad, preliminarily clarifying the level of microplastic pollution in the water and soils in Beijing. At the conclusion meeting, Dr. Chen Yuan, Chief of Regional Chemicals Management Branch of the Basel Convention Regional Centre for Asia and the Pacific/Stockholm Convention Regional Centre for Capacity-building and the Transfer of Technology in Asia and the Pacific (hereinafter referred to as "BCRC China"), presented a detailed report on the project's achievements, covering key aspects such as the occurrence characteristics of microplastics in water and soils, source-tracing analysis based on mathematical models, and targeted policy recommendations. The participating leaders and experts highly appraised the project and suggested optimizing the results in the future to contribute more to the prevention and control of pollution in Beijing. The successful conclusion of this project has provided an important scientific basis for in-depth understanding and controlling microplastic pollution in Beijing and has also laid a solid foundation for subsequent research and policy formulation.