Dichlromethane and trichloromethane were used to extract residues from the soil and water.    From Wordnik.com.  [Chapter 6] Reference

The petrochemical conglomerate was guilty of not reporting a leakage of several types of toxins, including 1,2-dichloroethane, chloroethene, trichloromethane and benzene, when it occurred nearly four years ago.    From Wordnik.com.  [Taipei Times] Reference