Table 2.

Elimination (depuration) rate constants for selected C-PCBs and the persistent PCB 153 in selected invertebrae species.

Species	Elimination (depuration) rate constant [10−2 day−1]a								Reference
	PCB 84	PCB 91	PCB 95	PCB 132	PCB 136	PCB 149	PCB 153	PCB 174
Earthworms (Eisenia foetida)		8					4		(Wagman et al. 2001)
Freshwater mussel (Elliptio complanata)	2.1b	2.8	2.9	0.9c	1.8	1.2	0.9d	< 0.5	(O’Rourke et al. 2004)
Freshwater mussel (Elliptio complanata)e		3.1	2.6		2.2	1.3			(Wang et al. 2010a)
Green-lipped mussel (Perna viridis)				8.0	12	9.7	7.9		(Tanabe et al. 1987)
Manila clam (Tapes philippinarum)f			21			22	24		(Raccanelli et al. 2008)
Opossum shrimp (Mysis relicta)g		1.4	7.4			0.3			(Warner and Wong 2006)
Sandworm (Nereis diversicolor)f			0.8–1.4				0.2–0.8		(Goerke and Weber 1990, Goerke and Weber 2001)
Earthworms (Eisenia foetida)		8					4		(Wagman et al. 2001)
Mayfly nymph (Hexagenia spp)			27			NS			(Wagman et al. 2001)
Zebra mussel (Dreissena polymorpha)			8.9h				4.7	5.2	(Morrison et al. 1995)

^aElimination/depuration rate constants were determined for whole animals if not noted otherwise (please see the respective references for additional details);

^bco-eluting with PCB101;

^cco-eluting with PCB 153;

^dco-eluting with PCB 132;

^eelimination rate constants were estimated using a quantitative structure-activity relationship;

^felimination rate constants were calculated from t_1/2 using the equation k = ln 2/t_1/2;

^gminimum elimination rates;

^hco-eluting with PCB 66. NS – regression analysis not significant.