Does polyester fabric degrade when exposed to ozone in polluted urban areas?

Polyester fabric, a widely used synthetic material, is known for its durability and resistance to many environmental factors. However, when exposed to high levels of ozone in polluted urban areas, polyester can undergo degradation over time. Ozone, a reactive gas present in smog, can break down the polymer chains in polyester, leading to weakened fibers, discoloration, and reduced tensile strength.

Studies show that prolonged exposure to ozone accelerates the aging process of polyester, particularly in densely populated cities with high pollution levels. While polyester is more resistant to ozone than natural fibers like cotton or rubber, it is not entirely immune. Factors such as fabric thickness, UV exposure, and humidity can further influence the rate of degradation.

To mitigate ozone damage, manufacturers often apply protective coatings or blend polyester with other materials. Regular maintenance, such as washing and storing fabrics properly, can also extend their lifespan. Understanding these effects helps consumers make informed choices about textile use in urban environments.