Abstract：
:Artificial particles, specifically a diverse selection of chromatographical resins, have been recommended and used as a useful experimental model to predict the bioavailability and bioaccumulation of sediment-bound organic chemicals. In this work the same experimental model was adopted to investigate the bioavailability and bioaccumulation of lead by the freshwater oligochaete Lumbriculus variegatus. Particle-water partition coefficients were also determined. Sand particles and the anionic exchange resin promoted a similar uptake and bioaccumulation of lead. Instead, in the presence of the cationic exchanger the metal was not detected in the animals. For neutral particles, the uptake and accumulation depended on the chemistry of the functional groups at the active sites. In addition, a significant negative correlation was found between bioaccumulation and the particle-water partition coefficients. These studies may help to develop alternative methods for chemical remediation of lead-contaminated aquatic systems.
journal_name
Chemospherejournal_title
Chemosphereauthors
Miño LA,Folco S,Pechén de D'Angelo AM,Verrengia Guerrero NRdoi
10.1016/j.chemosphere.2005.07.061subject
Has Abstractpub_date
2006-04-01 00:00:00pages
261-8issue
2eissn
0045-6535issn
1879-1298pii
S0045-6535(05)00965-3journal_volume
63pub_type
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