本报告基于“蔚蓝地图”App收集的“酒店减塑观察”众包数据以及多家环保社会组织在全国多地的实地调研，指出，尽管国家和地方已出台多项限制性政策法规，但住宿行业落实“不主动提供”规定的整体执行率依然偏低，违规现象普遍。本应率先合规、作为行业标杆的高端星级酒店，反而沦为政策执行的薄弱环节与“落后生”。报告归纳出导致“不主动提供”政策难以落地的四大痛点，提出了构建由政府主导、企业履责、平台引导、行业协同、公众参与的社会协作体系的四项建议。

Based on five years of large-scale public data gathered through Blue Map’s “Snapshot” (Suishoupai) feature, which enables users to take photos to identify and document waste sorting practices in their communities, this report provides a quantitative assessment of waste sorting performance in 104 prefecture-level and above cities across China. The findings show that, with accelerated progress during the 14th Five-Year Plan period, China’s municipal waste sorting has advanced from pilot exploration to more systematic development. Leading cities such as Suzhou and Shanghai have established world-class sorting systems, though challenges such as uneven regional progress and difficulties in recycling low-value recyclables remain.

2025年第二三季度水质指数和去年同期相比基本稳定，但受汛期影响，环比有所下降。

和上年同期相比， 2025年第一季度蔚蓝城市水环境指数等级为优良的城市占比从74.5%增加到82.4%，等级为一般的城市从19.9%减少到13.4%，较差的城市为2.2%，和上年同期持平，差的城市从3.3%减少到2.0%。

At around 8:00 p.m. on March 16, 2025, thallium (Tl) concentration at the Dahetan cross-city water monitoring section on the Leishui River (between Chenzhou and Leiyang) was detected at 0.13 μg/L—exceeding the national surface water quality standard limit of 0.1 μg/L for centralized drinking water sources. This posed a potential threat to downstream drinking water safety. Following the incident, both Chenzhou and Leiyang cities launched emergency environmental responses. Comprehensive actions were taken, including full-basin water sampling, source tracing, pollution interception, thallium removal measures, enhanced flow regulation, and real-time water quality monitoring along the river to safeguard public drinking water. According to public reports, thallium concentrations at downstream water plants remained below the national drinking water limit of 0.1 μg/L, and water supply safety was not compromised. Notably, the automated monitoring system played a key role by issuing an early warning when thallium exceeded limits at the Dahetan section, buying time for emergency response and supporting rapid environmental monitoring. This incident highlights the critical importance of robust water quality monitoring and pollution source management systems. In regions with high thallium pollution risks, further improvements to these systems remain essential.

From 2015 to 2025, from the "Ten Point Clean Water Action Plan" to the "Battle to Keep the Water Clear”, China has marked a decade of progress in water pollution control. Over this period, the implementation of the new Environmental Protection Law, nationwide central environmental inspections, the revision of the Water Pollution Prevention and Control Law, and the continuous refinement of the pollution permitting system have established a strong institutional framework for protecting water resources. As Chinese environmental organizations dedicated to water pollution prevention and public participation, the Institute of Public & Environmental Affairs (IPE) and Green Jiangnan (PECC) formed a joint research group to summarize the historic improvements in water quality, assess the effectiveness of public participation and innovative mechanisms, and analyze the role of multi-stakeholder engagement in advancing water pollution prevention.

This report reviews surface water quality data for 361 cities across China in the third and fourth quarters of 2024, along with changes in water quality trends since the fourth quarter of 2022. Overall, urban water environments in China continued to improve during the second half of 2024.