Comparison of SPMDs and BMOs

The series of steps involved in the accumulation of HOCs in BMOs is more complex than those associated with residue accumulation in SPMDs. For example. 

Data obtained from Hayton and Barron (1990) and Gobas et al. (1986). Hypothesized molecular size cutoff by Opperhuizen et al. (1985). 

Meadows et al. (1998) conducted a 28 d exposure of brown trout (Salmo trutta), standard SPMDs and hexane fllled dialysis bags (Sodergren, 1987) to spring water (total organic carbon 1 mg L ) contaminated with PCBs. Trout were not fed during the exposure, and temperature and flow conditions remained constant throughout the exposure. A good correlation (r = 0.89) was found between the uptake rate constants ( u,fs) for whole body trout and the uptake rate constants 

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