What are the effects of stratospheric ozone depletion on the degradation of metal outdoor sculptures?

Stratospheric ozone depletion has significant effects on the degradation of metal outdoor sculptures. The thinning ozone layer allows increased ultraviolet (UV) radiation to reach the Earth's surface, accelerating the corrosion and weathering of metal artworks. UV radiation breaks down protective coatings and paints, exposing the metal beneath to environmental elements like moisture and pollutants. This leads to oxidation, rust, and structural weakening over time. Additionally, temperature fluctuations exacerbated by ozone depletion can cause expansion and contraction, further damaging metal surfaces. Preventive measures, such as using UV-resistant coatings and regular maintenance, are essential to preserve these cultural assets. Understanding these impacts helps in developing strategies to mitigate long-term damage to outdoor metal sculptures.