In recent years, Beijing has gradually reduced and even ceased using traditional de-icing agents on roads during winter. This shift is driven by multiple concerns. Firstly, while conventional de-icers—primarily composed of sodium chloride and calcium chloride—effectively melt snow and ice, they severely corrode urban infrastructure such as bridges, roads, and underground pipelines, significantly increasing maintenance costs. Secondly, when melted snow containing these chemicals flows into soil and water bodies, it harms the ecological environment, inhibits plant growth, and can even contaminate groundwater. The high salt content also damages roadside trees and green belts, often causing vegetation to turn yellow or die after snowfall. To address these issues, Beijing has turned to mechanical snow removal, eco-friendly alternatives like calcium magnesium acetate, and more precise snow-clearing operations. Although these methods may be costlier or slightly less efficient, they align better with sustainable development goals. During the 2022 Winter Olympics, Beijing extensively deployed green snow-removal technologies, showcasing its commitment to eco-conscious urban management. Thus, saying ‘goodbye’ to traditional de-icing agents represents not just a technical upgrade, but a crucial step toward a greener, low-carbon city.
近年来，北京逐步减少甚至停止在冬季道路除雪中使用传统融雪剂，这一举措背后有多重考量。首先，传统融雪剂（主要成分为氯化钠、氯化钙等）虽能快速融化冰雪，但对城市基础设施造成严重腐蚀，包括桥梁、道路、地下管线等，大幅增加维护成本。其次，融雪剂随雪水流入土壤和水体后，会破坏生态环境，影响植物生长，甚至污染地下水。此外，高盐分还会伤害行道树和绿化带，导致‘雪后枯黄’现象频发。为应对这些问题，北京市转而推广机械除雪、环保型融雪材料（如醋酸钙镁）以及精细化除雪作业。这些替代方案虽然成本较高或效率略低，但更符合可持续发展理念。2022年冬奥会期间，北京就大规模采用绿色除雪技术，展示了城市治理的生态优先导向。因此，与传统融雪剂‘说再见’，不仅是技术升级，更是城市迈向绿色低碳发展的关键一步。
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