Polycyclic aromatic compounds (PAC) in leaf lettuce
- 1 September 1986
- journal article
- research article
- Published by Springer Science and Business Media LLC in Zeitschrift für Lebensmittel-Untersuchung und Forschung
- Vol. 183 (3), 182-185
- https://doi.org/10.1007/bf01027443
Abstract
23 Pfüicksalatproben (Lactuca sativa var.crispa) aus südfinnischen Hausgärten wurden auf polycyclische aromatische Kohlenwasserstoffe (PAH) und deren Derivate untersucht. Die Gesamt-PAH-Gehalte variierten zwischen 4,8 und 94 μg/kg Frischgewicht. PAH-Nitroabkömmlinge wurden lediglich in fünf Proben festgestellt. Eine der Salatproben wurde auch auf PAH-Sauerstoffdrivate untersucht. An der Probe wurden 9H-Fluoren-9-on (1,3 μg/kg) und 6H-Benzo(cd)pyren-6-on (0,3 μg/kg) festgestellt. Die PAH-Profile der Salatproben wurden an PAH-Profilen der freien Luft verglichen. Auf diese Weise konnte festgestellt werden, daß die PAH-Verbindungen von PAH-Verbindungen enthaltenden Partikeln der freien Luft stammen. Twentythree samples of leaf lettuce (Lactuca sativa var.crispa) cultivated in private gardens in southern Finland were analyzed for polycyclic aromatic hydrocarbons (PAH) and derivatives. The total PAH concentrations varied from 4.8 to 94 μg/kg fresh weight. Nitro derivatives of PAH were detected in only five samples. One lettuce sample was also analyzed for PAH oxy-derivatives. 9H-Fluoren-9-one (1.3 μg/kg) and 6H-benzo[cd]pyren-6-one (0.3 μg/kg) were found. The profiles of PAH in lettuce were compared with those in ambient air. It was concluded that PAH in lettuce originate from deposition of PAH-containing particles present in ambient air.Keywords
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