G.D. Foster
Jessica A. Hopple
1996
<p><span>The potential for hydrophobic organochlorine contaminants to be sequestered in submersed aquatic vegetation was evaluated by determining the concentrations of </span><i>cis</i><span>- and </span><i>trans</i><span>-chlordane, dieldrin, and polychlorinated biphenyls (PCBs) in feral aquatic macrophytes (</span><i>Hydrilla verticillata</i><span> (L.f.) Royle) collected from the tidal Potomac River. Similarities in mean dry-weight concentrations of the identified organochlorine compounds in </span><i>H. verticillata</i><span> and surrounding alluvial sediments indicated that the extent of sequestration in </span><i>H. verticillata</i><span> was of the same magnitude as sorption of these compounds to river sediments, but some qualitative differences in PCB congener profiles existed. The results imply that to some degree </span><i>H. verticillata</i><span> can influence downstream fluxes of organic contaminants in fluvial transport in the Potomac River, and, furthermore, identify this species as a viable candidate organism for hydrophobic organochlorine contaminant biomonitoring in the Chesapeake Bay estuary.</span></p>
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10.1016/S0269-7491(96)00097-8
en
Elsevier
Hydrophobic organochlorine compounds sequestered in submersed aquatic macrophytes (Hydrilla yerticillata (L.f.) Royle) from the tidal Potomac River (USA)
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