Conceptual diagram showing putative sequential effects of bivalve
exposures to Contaminants of Emerging Concern (CECs). Using the Adverse Outcome
Pathway (AOP) framework, initiating events at the molecular level can be
connected to higher order effects at the organism and population levels which
are relevant to risk assessment. Biomarker assessments typically identify
molecular and cellular level effects. Higher order effects, at the level of
organism and population, can result in ecological and human health impacts
which, in turn, result in socio-economic consequences.