Use: | Subjective interpretation made by a bioassessment expert biologist as to the potential
impact of a chemical or the health of an ecosystem. See 7.1.10 for use with metals, 8.2.6 for use with radionuclides, and 9.1.5 for use with explosives. |
Description:
Field bioassessments provide an indication of the potential for ecological risk (or lack thereof) that can be used to: (1) estimate the likelihood that ecological risk exists; (2) identify the need for site-specific data collection efforts; and (3) focus site-specific ecological risk assessments where warranted. Initial screening-level assessments are not designed or intended to provide definitive estimates of actual risk, generate cleanup goals, and are not based upon site-specific assumptions. Rather, their purpose is to assess the need to conduct a detailed ecological risk assessment for a particular site. To conduct an initial screening-level assessment for ecological risk, the following steps should be followed:
Analytes:
1. Non-Halogenated VOCs | 2. Non-Halogenated SVOCs | 3. Halogenated VOCs |
4. Halogenated SVOCs | 5. PAHs | 6. Pesticides/Herbicides |
Media:
Soil/Sediment | Water | Gas/Air |
BETTER | BETTER | BETTER |
Selectivity: | Technique measures a part of the compound. |
Susceptibility to Interference: | High. |
Detection Limits : | Not Applicable. |
Turnaround Time per Sample: | More than a day. |
Applicable To:
|
Limitations:
ASTM Standards/EPA Methods:
No applicable ASTM standards or EPA methods are cited for this technology.
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