Creating metal sculptures for high-pollution urban areas presents unique challenges that test both artistic vision and material science. The primary issue is corrosion—pollutants like sulfur dioxide and particulate matter accelerate rust and degradation, shortening the artwork's lifespan. Artists must select corrosion-resistant materials such as stainless steel, bronze, or specially coated metals, though these options often come at a higher cost.

Another hurdle is maintenance. Urban sculptures require frequent cleaning and protective treatments to withstand pollution, adding long-term expenses. Additionally, aesthetic integrity is at risk; pollution can discolor surfaces or obscure intricate details, diminishing the sculpture's impact.

Beyond material concerns, urban environments demand structural resilience. Heavy foot traffic, vandalism, and extreme weather compound pollution-related wear. Artists and city planners must collaborate to balance artistic expression with practicality, ensuring sculptures remain visually striking and structurally sound for years.

Ultimately, the challenge lies in merging creativity with durability, transforming pollution-prone spaces into enduring showcases of public art.