Common sources of metal exposure include industrial processes, mining activities, and the use of metal-containing products. Lead exposure can occur from old paint, contaminated soil, and plumbing systems. Mercury exposure is often linked to the consumption of contaminated fish and occupational exposure in industries such as chlor-alkali production. Cadmium can be found in batteries, pigments, and as a byproduct of smelting processes. Arsenic exposure is primarily associated with contaminated drinking water in certain regions.
