title: Occurrence of some chlorinated aliphatic hydrocarbons in the environment.
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D002251:Carbon Tetrachloride / Q000032:analysis; D002713:Chlorine / Q000032:analysis*; D002725:Chloroform / Q000032:analysis; D002849:Chromatography, Gas; D006846:Hydrocarbons, Halogenated / Q000032:analysis*; D012623:Seawater / Q000032:analysis; D013030:Spain; D013750:Tetrachloroethylene / Q000032:analysis; D014241:Trichloroethylene / Q000032:analysis; D014852:Wales; D014877:Water Pollution, Chemical / Q000032:analysis*
chemical_list: D006846:Hydrocarbons, Halogenated; D014241:Trichloroethylene; D002713:Chlorine; D002725:Chloroform; D002251:Carbon Tetrachloride; D013750:Tetrachloroethylene