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As the complexity and spatial scale of a risk assessment increase,
so do information needs.
For example, determining risks to a population of burrowing mammals
inhabiting a small area containing lead-contaminated soil would
require just a little sampling and toxicological information.
But predicting risks from multiple chemical, physical, and biological
stressors requires an effort to understand their interactions. Risk
assessments for a region or watershed, where multiple stressors
are the rule, require extensive consideration. To explore these
ideas further, click on the slider and reflection activities below.
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Scale of Assessment
and Information Needs
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Information
Gathering
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Relevant
guidelines section(s): 3.2
~ End of Lesson 2 ~
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