| uncertainty and variability in risk from trophic transfer of contaminants in dredged sediments. | the risks associated with bioaccumulative contaminants must be considered when evaluating dredged material disposal alternatives. the bioaccumulation of organochlorines and other contaminants by higher trophic level organisms represents one of the most significant sources of uncertainty in risk assessment. both population variability (e.g. true population heterogeneity in body weight, lipid content, etc.) and uncertainty (e.g. measurement error) in trophic transfer can lead to large errors in pr ... | 2001 | 11453301 |