Dichloromethane is an industrial solvent used in paint strippers and manufacturing. It enters water via industrial discharge and can evaporate. It's a potential carcinogen.

Dichloromethane, also known as methylene chloride, is a widely used industrial solvent. It's commonly found in paint strippers, pharmaceuticals, and various manufacturing processes. This volatile organic compound (VOC) can enter water supplies through industrial discharge or improper disposal of products containing it. The EPA regulates dichloromethane in drinking water, measuring it in parts per billion (ppb). While it can evaporate from water, its presence in drinking sources remains a concern due to potential health risks.