What are the effects of acid fog on polished aluminum outdoor sculptures?

Acid fog can significantly harm polished aluminum outdoor sculptures by accelerating corrosion and oxidation. The acidic moisture reacts with the aluminum surface, leading to pitting, discoloration, and loss of shine. Over time, this weakens the metal, making it more susceptible to further environmental damage. Regular cleaning and protective coatings can help mitigate these effects, preserving the sculpture's appearance and structural integrity. Understanding these risks is crucial for artists and collectors to maintain their outdoor aluminum artworks.