title: The determination of halogenated alkanes and alkenes in air. Introduction.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000473:Alkanes / Q000032:analysis*; D000475:Alkenes / Q000032:analysis*; D002606:Charcoal; D006846:Hydrocarbons, Halogenated / Q000032:analysis*; D007202:Indicators and Reagents; D008722:Methods
chemical_list: D000393:Air Pollutants; D000473:Alkanes; D000475:Alkenes; D006846:Hydrocarbons, Halogenated; D007202:Indicators and Reagents; D002606:Charcoal