Why are asbestos fibres particularly harmful to workers' health?

Asbestos fibres are particularly harmful to workers' health primarily because these microscopic fibres can become lodged in the lungs, where they can remain for extended periods. The unique structure of asbestos fibres contributes significantly to this harmful effect. They are often described as having hook-like barbs, which allow them to easily penetrate lung tissue and adhere to cellular structures. Once inhaled, these fibres do not break down easily, leading to chronic irritation and inflammation.

The persistent presence of asbestos fibres in the lungs can result in serious health issues over time, including asbestosis, lung cancer, and mesothelioma. The body's attempts to remove these fibres can lead to further complications, as they trigger an immune response that can result in scarring and fibrosis of lung tissue, severely affecting respiratory function.

Understanding this mechanism is crucial for recognizing why asbestos poses such a significant risk to individuals exposed to it, particularly in occupational settings where these fibres are more prevalent.