Benzene is an organic compound frequently used in the manufacturing of rubber, paint, plastics, resins, drugs, pesticides, synthetics, and other products. Benzene is a colorless and highly flammable liquid with a sweet odor. Benzene can also be present in organic solvents, gasoline, and tobacco smoke.

Exposure to benzene is most likely to occur among workers in facilities that use the chemical in their products. Benzene exposure can cause acute myelogenous leukemia (AML), as well as other forms of leukemia and cancer. In addition, benzene can enter the environment through spills, accidental releases, volcanic eruptions, and forest fires.