Concentration and flux profiles of PCBs, DDTs and PAHs in a dated sediment core from the lagoon of Venice
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Cited by (54)
Vertical distribution profiles and diagenetic fate of synthetic surfactants in marine and freshwater sediments
2013, Science of the Total EnvironmentCitation Excerpt :It is often assumed, not only for surfactants but also for many other organic contaminants, that they may be preserved during years due to their low bioavailability and the absence of oxygen a few millimeters below the surface. There are some reports describing historical profiles of regulated contaminants such as polycyclic aromatic hydrocarbons (PAHs) or polychlorinated biphenyls (PCBs) (Eganhouse et al., 2000; Li et al., 2001; Lima et al., 2003; Pavoni et al., 1987; Rinawati et al., 2012; Santschi et al., 2001; Yamashita et al., 2000) in sediments. In some occasions, however, disappearance of contaminants by means of mechanisms such as reductive dechlorination has been observed in chlorinated chemicals such as chlorinated hydrocarbons and chlorofluorocarbons (CFCs).
Assessment of the Mediterranean sediments contamination by persistent organic pollutants
2007, Environmental PollutionCitation Excerpt :In the Adriatic Sea, the contamination in the Venice Lagoon (Italy) mainly originates from the activities of the industrial district of Porto Marghera and from the freshwater streams flowing into the lagoon, particularly domestic sewage from the city of Venice (Pavoni et al., 1998). DDT inputs in the lagoon have occurred in the past and are mainly attributed to industrial activities developed in the area (Pavoni et al., 1987). Although high levels of contamination are reported inside the lagoon (3–5600 ng g−1 for PCBs in Aroclor eq and 0.3–2400 ng g−1 for HCB), these generally decrease along the continental shelf (Cousteau, 1979; Donazzolo et al., 1982; Galassi et al., 1993; SIDIMAR, 2005).
Organic carbon changes in the surface sediments of the Venice lagoon
2005, Environment InternationalCompound-specific radiocarbon analysis of polycyclic aromatic hydrocarbons (PAHs) in sediments from an urban reservoir
2004, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and AtomsCitation Excerpt :Because of their toxicity and genotoxicity, many researchers have focused on the source apportionment of PAHs accumulated in riverine, lacustrine and marine sediments (e.g. [1–4]). In addition, to reconstruct the historical trend of the PAH burden, several researchers have investigated vertical profiles of PAH concentrations and their depositional fluxes using sediment cores [5–8]. Although a variety of criteria may be used to distinguish petroleum (petrogenic) from combustion (pyrogenic) sources of PAHs in environmental samples, it is much more difficult to distinguish PAHs derived from modern (e.g. biomass burning) vs. fossil fuel (e.g. petroleum and coal combustion) sources.