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Ecological Risk Assessment Training
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Analysis Lesson 2: Data

Lesson 2 describes how to select from the collected data in order to move forward and explicitly describe the exposure and the ecological affects. Lesson 2 also presents some thoughts on uncertainty, an issue that must be addressed all along during ecological risk assessment.

Data selection is the process of analyzing the available data to identify those that can be used to evaluate the conceptual model, and weeding out all other data.

Reminder! Three types of measure provide useful information for ecological risk assessments:

  • Measures of exposure.
  • Measures of ecosystem and receptor characteristics.
  • Measures of effects.

These data can be collected in a variety of ways, which will be discussed on the next screen.

Click the activity icon below for more information about the attributes of the different data types. Then come back and click each in-depth icon to learn more.

activity
Types of Data
     text-only version

in-depth
Data Collection vs. Data Selection
    

in-depth
Field Study Design
    

Relevant guidelines section(s): 4.0, 4.1, and 4.1.1


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