A real-time biomonitoring system to detect arsenic toxicity by valve movement in freshwater clam Corbicula fluminea
Journal
Ecotoxicology
Journal Volume
21
Journal Issue
4
Pages
1177-1187
Date Issued
2012
Author(s)
Abstract
Arsenic (As) is the element of greatest ecotoxicological concern in aquatic environments. Effective monitoring and diagnosis of As pollution via a biological early warning system is a great challenge for As-affected regions. The purpose of this study was to synthesize water chemistry-based bioavailability and valve daily rhythm in Corbicula fluminea to design a biomonitoring system for detecting waterborne As. We integrated valve daily rhythm dynamic patterns and water chemistry-based Hill dose- response model to build into a programmatic mechanism of inductance-based valvometry technique for providing a rapid and cost-effective dynamic detection system. A Lab- VIEW graphic control program in a personal computer was employed to demonstrate completely the functional presentation of the present dynamic system. We verified the simulated dissolved As concentrations based on the valve daily rhythm behavior with published experimental data. Generally, the performance of this proposed biomonitoring system demonstrates fairly good applicability to detect waterborne As concentrations when the field As concentrations are less than 1 mg L -1. We also revealed that the detection times were dependent on As exposure concentrations. This biomonitoring system could particularly provide real-time transmitted information on the waterborne As activity under various aquatic environments. This parsimonious C. fluminea valve rhythm behavior-based real-time biomonitoring system presents a valuable effort to promote the automated biomonitoring and offers early warnings on potential ecotoxicological risks in regions with elevated As exposure concentrations. © Springer Science+Business Media, LLC 2012.
Subjects
Arsenic; Biomonitoring; Corbicula fluminea; Ecotoxicology; Freshwater clam; Valve rhythm behavior
SDGs
Other Subjects
arsenic; arsenic; behavioral response; bioaccumulation; bioavailability; biomonitoring; dose-response relationship; early warning system; ecotoxicology; mollusc; pollution effect; pollution exposure; pollution monitoring; risk assessment; water chemistry; animal behavior; animal shell; animal tissue; arsenic poisoning; article; bioaccumulation; bioavailability; biological monitoring; clam; computer simulation; controlled study; Corbicula fluminea; freshwater environment; freshwater species; mathematical model; nonhuman; performance measurement system; priority journal; water analysis; water pollution indicator; Algorithms; Animals; Arsenic; Corbicula; Ecotoxicology; Environmental Monitoring; Equipment Design; Fresh Water; Models, Theoretical; Water Pollutants, Chemical; Bivalvia; Corbicula fluminea
Type
journal article