Chrysene and triphenylene in spruce from the Saarland Conurbation

Declining contamination since the mid 1980s

Chrysene and triphenylene are products of combustion of fossil fuels and other organic material. Furthermore, chrysene is used in chemical industry. Both compounds are environmentally persistent and accumulate in organisms. In the samples they are analysed as sum of both compounds.
Between the mid 1980s and early 1990s chrysene and triphenylene were quite high in spruce shoots from the Saarland conurbation sampling site Warndt. Thereafter concentrations decreased. In spruce shoots from the sampling site Oberes Steinbachtal chrysene and triphenylene levels were within the same range and also decreased in time. This indicates that atmospheric pollution has declined in the last years, which is probably due to improved emission protection in the nearby metal-working industry.

Chrysene and triphenylene in spruce shoots from the Saarland Conurbation (Saarländischer Verdichtungsraum)
Fig. 1: Chrysene and triphenylene in spruce shoots from the Saarland Conurbation (Saarländischer Verdichtungsraum) Zoom in

 

Recommended profiles

Specimen

Common spruce A major primary producer in semi-natural and anthropogenic affected ecosystems.

Analytes

Chrysene + Triphenylene Polycyclic aromatic hydrocarbon with four connected six-membered rings

Sampling area

Saarländischer Verdichtungsraum Important, old-industrialised conurbation in Germany.