1,2,3-Trichlorobenzene is a synthetic chemical used in industry as a solvent. It can enter water through industrial discharges and may cause liver and kidney damage.

1,2,3-Trichlorobenzene is primarily produced for industrial purposes. It's a colorless liquid with a strong odor, used as a solvent and in the manufacture of pesticides and dyes. This chemical can enter water sources through improper disposal or industrial runoff. Environmental agencies typically measure its presence in parts per billion (ppb) using gas chromatography. While not naturally occurring, it persists in the environment due to its slow biodegradation. Proper industrial waste management is crucial to prevent water contamination.