Which health condition results from long-term exposure to cobalt?

Long-term exposure to cobalt has been linked with the development of lung fibrosis, which is a condition characterized by the scarring and thickening of lung tissue. When inhaled over extended periods, cobalt can contribute to a chronic inflammatory response in the lungs, leading to damage and eventually resulting in fibrosis. This scarring reduces lung capacity and can lead to severe respiratory difficulties.

Other health conditions mentioned are associated with different types of exposures or factors. For example, asthma is typically linked to various allergens or irritants but not specifically to cobalt exposure. Kidney damage can occur due to different toxic exposures, but cobalt primarily affects pulmonary health. Vision impairment could be a concern with specific heavy metals but is not a commonly recognized effect of cobalt exposure. Therefore, lung fibrosis is the most relevant health condition associated with long-term exposure to cobalt.