Are synthetic fabrics like polyester prone to degradation in smoggy areas?

Yes, synthetic fabrics like polyester are prone to degradation in smoggy areas. While polyester is generally more resistant to environmental damage than natural fibers, prolonged exposure to urban air pollution significantly accelerates its breakdown. Smog contains complex mixtures of ozone, nitrogen oxides, sulfur dioxide, and particulate matter that initiate chemical reactions on fabric surfaces. These pollutants catalyze photo-oxidative degradation, particularly when combined with solar UV radiation. The process breaks down polymer chains, leading to surface pitting, reduced tensile strength, color fading, and increased brittleness. Particulate matter embeds in fibers, causing abrasive damage during movement and cleaning. Industrial areas with higher ozone concentrations present the greatest risk, as ozone directly attacks molecular bonds. To mitigate damage, experts recommend regular gentle washing to remove pollutants, application of UV-protective sprays, indoor drying when pollution levels are high, and proper storage in sealed containers. Compared to cotton, polyester shows slower initial degradation but undergoes more catastrophic failure once protective surface layers are compromised. Understanding this vulnerability helps consumers in polluted regions make informed choices about clothing care and replacement cycles.