title: Distribution of some organochlorine compounds in pine needles from Central and Northern Europe.
abstract: Levels of selected organochlorine compounds in pine needles were measured in two sampling series. The first series collected in 1989 covered Southern Germany to Northern Scandinavia, and the second collected in 1990 covered Czechoslovakia to Estonia. The levels of alpha-hexachlorocyclohexane (alpha-HCH) and hexachlorobenzene (HCB) were relatively uniform throughout Europe, while the levels of gamma-hexachlorocyclohexane (gamma-HCH) and the DDT group show higher levels in the southern parts of the investigated area. The deposition patterns of all compounds except alpha-HCH indicate a dependence on fresh release from diffuse or point sources rather than global fractionation. The analytes accumulate in the needles until senescence starts and, generally, the oldest needles have the highest concentrations. The accumulation rate of the analytes in mountain pine needles is about half that of Scots pine needles indicating the importance of species differences.
authors.affiliation: Department of Environmental Assessment, Swedish University of Agricultural Sciences, PO Box 7050, SE-750 07, Uppsala, Sweden.
authors.forename: Anna
authors.initials: A
authors.lastname: Hellström
authors.forename: Henrik
authors.initials: H
authors.lastname: Kylin
authors.forename: William M J
authors.initials: WM
authors.lastname: Strachan
authors.forename: Sören
authors.initials: S
authors.lastname: Jensen
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D003634:DDT / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods*; D005060:Europe; D006581:Hexachlorobenzene / Q000032:analysis; D001556:Hexachlorocyclohexane / Q000032:analysis; D007306:Insecticides / Q000032:analysis*; D028223:Pinus; D018515:Plant Leaves / Q000737:chemistry*; D013045:Species Specificity
chemical_list: D000393:Air Pollutants; D007306:Insecticides; D006581:Hexachlorobenzene; D001556:Hexachlorocyclohexane; D003634:DDT