What is a notable effect of heavy exposure to vanadium?

Heavy exposure to vanadium can lead to the notable effect of a green tongue due to the formation of vanadium compounds in the mouth. This coloration occurs when vanadium salts react with salivary proteins, changing the pigment of the tongue to a green hue. Vanadium is often encountered in industrial settings, particularly in the production of steel and other alloys, and its exposure can manifest in various ways. The green tongue can serve as a visual indicator of vanadium exposure, prompting further investigation into safety measures and potential health risks.

Other effects of vanadium exposure can include respiratory issues and stomach discomfort, but the specific manifestation of a green tongue stands out as a unique condition associated with high levels of exposure. Ensuring proper industrial hygiene practices can minimize the risk of such effects.