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How can toluene diisocyanate exposure cause occupational asthma?

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Asbestosis — occupational disease The lung disease asbestosis is caused primarily by prolonged inhalation of asbestos fibers. It occurs mainly among workers whose occupations involve exposure to asbestos and people who live near mines, factories, and construction sites.

Toluene diisocyanate is a chemical compound primarily utilized in the production of polyurethane foam. In the context of occupational health, exposure to this substance can lead to the development of asthma in susceptible individuals, even when concentrations are very low.1

When exposure occurs at higher concentrations—such as during an accidental industrial spillage—it can trigger a transient, flulike illness characterized by airflow obstruction. Because of these respiratory risks, the recognition of this syndrome has prompted significant modifications to industrial manufacturing processes to better protect workers.1

Ensuring a safe working environment is a fundamental ethical obligation; employers have a moral responsibility to implement rigorous safety standards and protective measures to prevent workers from being exposed to hazardous substances that cause chronic or acute respiratory harm.