Accumulation of Organochlorine Pesticides and PCBs by Semipermeable Membrane Devices and Mytilus edulis in New Bedford Harbor

Abstract

We deployed semipermeable membrane devices (SPMDs) and transplanted blue mussels (Mytilus edulis) side-by-side at five sites in New Bedford Harbor, MA. A good correlation was obtained between accumulation in the SPMDs and the caged mussels, with r 2 values ranging from 0.57 to 0.85 for individual pesticides (n = 16) and from 0.81 to 0.96 for individual PCB congeners (n = 20). An excellent correlation also was found between the log K ow and the log BAF (bioaccumulation factor in mussels) and between the log K ow and log AF (accumulation factor in SPMDs). Accumulation in the mussels was approximately 2-fold higher than in the SPMDs when concentrations were expressed on a lipid basis. These correlations are significantly better than any reported previously and probably result from modifications that we made to the original design of the SPMD. A close examination of accumulation into SPMDs demonstrates that the uptake rate and equilibrium status of an SPMD can be easily manipulated by modifying membrane thickness, surface area, and lipid substrate volume. Knowledge of these parameters and their effect on SPMD uptake rates is critical to the interpretation of SPMD data and can be used to optimize the design of SPMDs for specific applications.

PAHs and PCBs accumulated by SPMD-based virtual organisms and feral fish in Three Gorges Reservoir, China

“…The use of VO to complement or to replace fish has been proven to meet the goals of many monitoring programs under controlled laboratory conditions (Lu and Wang, 2003). Many studies have been carried out comparing the accumulation of HOCs by VOs with bivalves such as mussels (Prest et al, 1995;Hofelt and Shea, 1997;Baussant et al, 2001;Richardson et al, 2001Richardson et al, , 2005 and caged fish (Gale et al, 1997;Baussant et al, 2001;Verweij et al, 2004;Ke et al, 2007). However, few studies have been conducted to compare the uptake of HOCs by VOs to that by feral fish living in freshwater rivers.…”

Estimation of the Uptake Rate Constants for Polycyclic Aromatic Hydrocarbons Accumulated by Semipermeable Membrane Devices and Triolein-Embedded Cellulose Acetate Membranes

“…One implicit assumption in the use of PSDs is that only the freely dissolved form of a chemical is available for partitioning into the membrane (12,18,19). Although this assumption has not been tested rigorously, it is reasonable to incorporate a correction for organic carbon material partitioning when accumulation of hydrophobic chemicals by PSDs is studied (20,21).…”

Accumulation of organochlorinated pesticides by triolein-containing semipermeable membrane device (triolein-SPMD) and rainbow trout

“…It has been successfully used for monitoring chemicals in aquatic environments [2][3][4][5][6][7][8], and in air [9,10]. Triolein-SPMD has also been used for screening and preliminary identification of emission sources in wastewater systems and groundwater [11][12][13][14], and appears to simulate the bioconcentration of dissolved chemicals by aquatic organisms [15][16][17][18][19][20][21]. The procedure for dialytic recovery of pesticides can be used separately to remove lipids and other interferences from environmental sample extracts [22,23].…”