Abstract The aim of this study is to evaluate a new configuration of the passive sampler Chemcatcher as probe for predicting the bioavailability of persistent organic pollutants in marine sediments. In the new configuration the sampler can work with the principles of measurement of Diffusive Gradient in Thin film (DGT) technique. The present study examines the kinetic of desorption and degradation of three Polycyclic Aromatic Hydrocarbons (PAHs), anthracene, pyrene and benzo[a]pyrene, in two different marine sediments. The free dissolved PAHs in the sediment pore water were also determined. The results suggest that the kinetically labile solid-phase pool of the PAHs, perceived by the DGT measurement, plays an important role in biodegradation processes along with the free dissolved PAHs in the sediment pore water.
In-Situ Assessment of PAHs in Contaminated Marine Sediments / Prokofyeva, Evgeniya; E., Frapiccini; M., Marini; A., Bondarenko; Ruello, Maria Letizia. - In: Journal of IPCBEE. - STAMPA. - (2014). (Intervento presentato al convegno 6th International Conference on Chemical, Biological and Environmental Engineering tenutosi a Paris, France nel 15 -16 September 2014).
In-Situ Assessment of PAHs in Contaminated Marine Sediments
PROKOFYEVA, EVGENIYA;RUELLO, Maria Letizia
2014-01-01
Abstract
Abstract The aim of this study is to evaluate a new configuration of the passive sampler Chemcatcher as probe for predicting the bioavailability of persistent organic pollutants in marine sediments. In the new configuration the sampler can work with the principles of measurement of Diffusive Gradient in Thin film (DGT) technique. The present study examines the kinetic of desorption and degradation of three Polycyclic Aromatic Hydrocarbons (PAHs), anthracene, pyrene and benzo[a]pyrene, in two different marine sediments. The free dissolved PAHs in the sediment pore water were also determined. The results suggest that the kinetically labile solid-phase pool of the PAHs, perceived by the DGT measurement, plays an important role in biodegradation processes along with the free dissolved PAHs in the sediment pore water.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
