Ethylbenzene is an organic compound found in gasoline and solvents. It enters water from industrial spills, leaking fuel tanks, and plastic pipes. It can cause dizziness and kidney issues.

Ethylbenzene is a colorless, flammable liquid with a gasoline-like odor. It's primarily used in the production of styrene, a key component in many plastics. Industrial activities, such as petroleum refining and chemical manufacturing, are major sources of ethylbenzene in the environment. It can seep into groundwater from contaminated soil or leaking underground storage tanks. The EPA measures ethylbenzene levels in parts per billion (ppb) and has set a maximum contaminant level of 700 ppb in drinking water to protect public health.