What are the effects of prolonged exposure to industrial pollutants on PVC?

Prolonged exposure to industrial pollutants can significantly impact PVC (Polyvinyl Chloride), a widely used synthetic plastic polymer. Industrial pollutants such as acids, alkalis, solvents, and heavy metals can cause chemical degradation, leading to reduced mechanical strength, discoloration, and surface cracking. Over time, these effects compromise PVC's durability and structural integrity, making it brittle and prone to failure. Additionally, UV radiation combined with pollutants accelerates photo-oxidation, further weakening the material. Understanding these effects is crucial for industries relying on PVC for piping, construction, and electrical insulation, as it highlights the need for protective coatings or alternative materials in highly polluted environments.