Predicting bioavailability and bioaccumulation of arsenic by freshwater clam Corbicula fluminea using valve daily activity
Journal
Environmental Monitoring and Assessment
Journal Volume
169
Journal Issue
1-4
Pages
647-659
Date Issued
2010
Author(s)
Abstract
There are many bioindicators. However, it remains largely unknown which metal-bioindicator systems will give the reasonable detection ranges of bioavailable metals in the aquatic ecosystem. Various experimental data make the demonstration of biomonitoring processes challenging. Ingested inorganic arsenic is strongly associated with a wide spectrum of adverse health outcomes. Freshwater clam Corbicula fluminea, one of the most commonly used freshwater biomomitoring organisms, presents daily activity in valve movement and demonstrates biotic uptake potential to accumulate arsenic. Here, a systematical way was provided to dynamically link valve daily activity in C. fluminea and arsenic bioavailability and toxicokinetics to predict affinity at arsenic-binding site in gills and arsenic body burden. Using computational ecotoxicology methods, a valve daily rhythm model can be tuned mathematically to the responsive ranges of valve daily activity system in response to varied bioavailable arsenic concentration. The patterned response then can be used to predict the site-specific bioavailable arsenic concentration at the specific measuring time window. This approach can yield predictive data of results from toxicity studies of specific bioindicators that can assist in prediction of risk for aquatic animals and humans. © 2009 Springer Science+Business Media B.V.
Subjects
Arsenic; Bioaccumulation; Bioavailability; Biomonitoring; Corbicula fluminea; Freshwater clam; Valve daily activity
Other Subjects
Bioavailability; Biomonitoring; Corbicula fluminea; Daily activity; Freshwater clam; Air pollution control; Animals; Binding energy; Bioaccumulation; Biochemistry; Biomarkers; Ecology; Forecasting; Health risks; Arsenic; arsenic; aquatic ecosystem; arsenic; bioaccumulation; bioavailability; bioindicator; biomonitoring; bivalve; concentration (composition); ecotoxicology; aquatic species; article; binding affinity; binding site; bioaccumulation; bioavailability; body burden; controlled study; Corbicula; Corbicula fluminea; ecotoxicology; environmental monitoring; gill; indicator organism; mathematical model; prediction; risk assessment; toxicokinetics; water quality; Animals; Arsenic; Corbicula; Dose-Response Relationship, Drug; Environmental Monitoring; Forecasting; Fresh Water; Water Pollutants, Chemical; Water Pollution, Chemical; Animalia; Bivalvia; Corbicula fluminea
Type
journal article