Chromium-6, also known as hexavalent chromium, is a toxic form of the element chromium. It is commonly found in industrial processes, such as metal plating, leather tanning, and the production of pigments. Exposure to chromium-6 can occur through inhalation, ingestion, or skin contact, and it is known to pose serious health risks, including respiratory issues and cancer. Regulations have been established to limit chromium-6 levels in drinking water and workplace environments. The Environmental Protection Agency (EPA) and other health organizations monitor its presence to protect public health. Efforts are ongoing to reduce chromium-6 emissions and find safer alternatives in industrial applications.