近年来，不少城市在冬季降雪后不再大规模使用融雪剂，引发公众关注。其实，这一变化背后有多重原因。首先，传统氯化钠类融雪剂虽能快速融雪，但对道路、桥梁钢筋结构具有腐蚀性，长期使用会缩短基础设施寿命。其次，融雪剂随雪水流入土壤和水体，可能污染环境，影响植物生长甚至危害地下水安全。此外，部分城市通过优化除雪机制，如提前部署机械除雪车辆、加强人工清扫，提高了物理除雪效率，减少了对化学融雪剂的依赖。一些地区还试点使用环保型融雪材料，如醋酸钙镁（CMA）等，虽成本较高，但对环境更友好。因此，‘今年下雪为啥不撒融雪剂了’并非疏忽，而是城市管理理念向绿色、可持续方向转变的体现。
In recent years, many cities have stopped using large amounts of de-icing agents after snowfall, drawing public attention. This shift stems from several key reasons. First, traditional sodium chloride-based de-icers, while effective at melting snow quickly, are highly corrosive to road surfaces and the steel reinforcement in bridges, shortening infrastructure lifespans over time. Second, when snow melts, these chemicals can seep into soil and waterways, potentially contaminating the environment, harming vegetation, and even threatening groundwater safety. Additionally, many cities have improved their snow removal strategies—deploying mechanical plows earlier and enhancing manual clearing—making physical snow removal more efficient and reducing reliance on chemical agents. Some regions are also piloting eco-friendly alternatives like calcium magnesium acetate (CMA), which, though more expensive, are far less damaging to the environment. Therefore, the absence of de-icing agents this winter isn’t neglect—it reflects a broader shift toward greener, more sustainable urban management practices.
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