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 Ecological Effects Assessment
What is an ecological effects assessment?
An ecological effects assessment is a summary of the available data that describe the potential adverse
biological effects of the COC on the selected receptors or closely related organisms.
What is the goal of the ecological effects assessment?
The goal of the ecological effects assessment is to provide the risk assessor with a description of the
potential ecological effects associated with a COC and a concentration in environmental media, dose,
body burden, or dietary concentration related to these effects.
What are the components of an ecological effects assessment?
The ecological effects assessment includes:
a.
An identification of data sources.
b.
A summary of ecotoxicological data.
c.
A selection or calculation of a toxicity factor (i.e., concentration in environmental media,
dose, body burden, or dietary concentration associated with a particular effect) which relates
to the assessment end point chosen during problem formulation.
d.
A description of the environmental effect associated with the toxicity factor.
How is the ecological effects assessment used in risk assessment?
Ultimately, the risk assessment will compare the toxicity factor developed in the ecological effects
assessment to the predicted toxicity factor to predict risk.
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Chapter 3 Ecological Exposure Assessment
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