Distribution of some organochlorine compounds in pine needles from Central and Northern Europe.
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.
Hellström
Anna
A
Department of Environmental Assessment, Swedish University of Agricultural Sciences, PO Box 7050, SE-750 07, Uppsala, Sweden.
Kylin
Henrik
H
Strachan
William M J
WM
Jensen
Sören
S
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
D000393:Air Pollutants; D007306:Insecticides; D006581:Hexachlorobenzene; D001556:Hexachlorocyclohexane; D003634:DDT