Why is marble often avoided for outdoor sculptures in polluted cities?
Marble, a classic material for sculptures, is often avoided for outdoor art in polluted urban areas due to its vulnerability to environmental damage. Acid rain, a common byproduct of urban pollution, reacts with the calcium carbonate in marble, causing erosion, pitting, and surface degradation. Additionally, airborne pollutants like sulfur dioxide and particulate matter can stain and discolor marble over time, diminishing its aesthetic appeal. Unlike more durable materials such as bronze or granite, marble requires frequent maintenance in polluted environments, making it impractical for long-term outdoor displays. This explains why many cities opt for alternative materials to preserve public art in harsh climates.
