Abstract During April 1989, needles from Scotch pine (Pinus sylvestris) trees were collected from a network of stations in West Germany, Denmark, Norway, and Sweden. Samples from selected stations were analyzed for hexachlorobenzene (HCB), pen-tachlorophenol (PCP), hexachlorocyclohexane isomers (α-HCH and γ-HCH [lindane]), DDT, and DDE. Accumulation of the investigated compounds was observed in up to four needle-year ...
