Skip common site navigation and headers
United States Environmental Protection Agency
Ecological Risk Assessment Training
Begin Hierarchical Links EPA Home > Research and Development > NCEA Home > Risk Assessment Forum > Ecological Risk Assessment Training > Analysis > Characterizing Exposure > Resource End Hierarchical Links

 

Characterizing Exposure Process Flow (Text Version)

Characterize Exposure

1. Describe stressor source.

  • Place where stressor originates.
  • Action producing stressors.

2. Describe stressor distribution

  • Transport pathways.
  • Secondary stressors: formation and distribution.

3. Describe extent of exposure.

  • Contact / Uptake / Co-occurrence.
  • Intensity / Frequency / Time / Space.
  • Influential factors.
  • Estimating exposure.

4. Prepare Exposure Profile.

 


Back | Top

 


ORD Home | Search EPA | Search NCEA

 
Begin Site Footer

EPA Home | Privacy and Security Notice | Contact Us