Progress Report of the Ecological Committee on FIFRA Risk Assessment Methods:
1. Workgroup Formation and Process
I. M. Sunzenauer, and D.S. Spatz,
Office of Pesticide Programs,
U.S. Environmental Protection Agency,
Washington, DC 20460;
Stilwell, KS 66085
On this Page
- May 1996
- SAP Recommendations
- EFED Response to the SAP
- December 1996 - Formation of the Workshop Organizing Committee (WOK)
- Responsibilities and Accomplishments of the WOK
- June 1997 - Formation of the ecological Committee On FIFRA Risk Assessment Methods (ECOFRAM)
- 1001 Risk Manager Questions
- Charge to the Terrestrial and Aquatic Workgroups
- Workgroup Members: Aquatic (Exposure and Effects)
- Workgroup Members: Terrestrial (Exposure and Effects)
- August 1997 - Progress of ECOFRAM Workgroups
- On the Web
The Environmental Fate and Effects Division within the Office of Pesticide Programs presented their Ecological Risk Assessment Methodology to the FIFRA Scientific Advisory Panel (SAP).
While recognizing and generally reaffirming the utility of OPP's current ecological risk assessments, the Panel indicated that OPP, due to data gaps, is "trapped" in single point deterministic risk assessments and should move toward probabilistic types of assessments that address the magnitude, uncertainty and variation involved in the provided estimates.
EFED Response to the SAP
Commitment to design a process for developing and validating probabilistic assessment tools and methodologies.
Methods developed will reflect a solid foundation in environmental toxicology and environmental fate, including the transport, degradation, and accumulation of pesticides in the environment.
Commitment to involve stakeholders- outreach.
Formation of the Workshop Organizing Committee (WOK)
|WOK Committee Member||Affiliations|
|Dave Fischer||Bayer Corp.|
|Jim Gagne||Am. Cyanamid|
|Dennis Laskowski||Dow Elanco|
|Kevin Reinert||Rohm and Haas|
|Rick Stanton||Valent USA|
Responsibilities and Accomplishments of the WOK
Pesticide Program Dialog Committee (PPDC)
State FIFRA Issues Research and Evaluation Group (SFIREG)
Professional Meetings (ACS, SETAC, SRA)
Invited participants to ECOFRAM- aquatic and terrestrial workgroups.
Held June 23, 1997 open workshop. "Evaluating Ecological Risk: Developing FIFRA Probabilistic Tools and Processes."
Two additional workshops are planned.
Summer 1998- workgroups will share results and obtain peer review.
Fall 1998- open meeting for ECOFRAM to share final results and recommendations.
June 1997 - Formation of the Ecological Committee On FIFRA Risk Assessment Methods (ECOFRAM)
Responsible for conducting the primary review of the current assessment process and developing new tools and methodologies.
Identify additional methods, development and validation needs to ensure that the assessment process supports environmental decisions that are scientifically defensible.
1001 Risk Manager Questions
What is the magnitude and probability of these effects?
What are the effects of concern?
Why are they of concern?
Will there be population(s) impacts?
Will the population(s) recover?
Are the effects seen across different species?
Will the effects influence density and diversity?
How confident are we in our estimate of the effects?
What models did we use?
Have they been validated?
Are they widely accepted and scientifically sound?
Is there any monitoring data?
Which data are more reliable, lab or monitoring?
How have you factored the monitoring data into your assessment?
Charge to the Terrestrial and Aquatic Workgroups
Develop processes and tools for predicting the magnitude and probabilities of adverse effects to non-target aquatic and terrestrial species resulting from the use of pesticides.
Standardized procedures that integrate estimates of pesticide exposure with knowledge about potential adverse effects. Account for biological factors such as species sensitivity, habitat, dietary/behavior mechanisms. Account for environmental factors such as transport, accumulation, fate, climate, application techniques, and formulation.
Address uncertainty in a quantitative manner and recommend procedures to appropriately validate tools and assumptions.
Keep within the context of the FIFRA regulatory perspective and follow the outline provided by EPA's Framework for Ecological Risk Assessment (U.S. EPA/ORD, 1992).
Workgroup Members: Aquatic (Exposure and Effects)
|Aquatic Exposure Workgroup Member||Affiliation|
|Paul Hendley (Chair)||Zeneca|
|James Baker||Iowa State Univ.|
|R. David Jones||OPP/EPA|
|Mark Russell||Du Pont|
|Mari Stavanja||FL Bureau of Pesticide|
|W. Martin Williams||Waterborne Env.|
|Aquatic Effects Workgroup Member||Affiliation|
|Jeff Giddings (Chair)||Springborn|
|Jerry Clark||Natl. Fish & Wildlife Fou.|
|A. Tilghman Hall||Bayer|
|Michael Newman||Univ. of Georgia|
|Kevin Reinert||Rohm and Haas|
|Robert Sebastien||Health Canada|
|Keith Solomon||Univ. of Guelph|
|Randy Wentsel||U.S. Army|
Workgroup Members: Terrestrial (Exposure and Effects)
|Terrestrial Exposure Workgroup Member||Affiliation|
|Edward Fite (Chair)||OPP/EPA|
|Larry Brewer||Ecotox. & Biosystems|
|Kristin Brugger||Du Pont|
|Andy Hart||UK MAFF|
|Daryl Morehead||Texas Tech Univ.|
|Raymond O'Connor||Univ. of Maine|
|Duane Wolf||Univ. of Arkansas|
|Terrestrial Effects Workgroup Member||Affiliation|
|Michael Willig (Chair)||Texas Tech|
|Alain Baril||Environment Canada|
|Richard Bennett||Eco. Planning & Tox|
|Michael Fry||National Audubon Soc.|
|James Gagne||American Cyanamid|
|Michael Hooper||Clemson Univ.|
|Thomas Lacher||Texas A&M|
|Monte Mayes||Dow Chemical|
|Diana Post||Rachel Carson Council|
|Robert Ringer||Michigan State (Ret.)|
August 1997 - Progress of ECOFRAM Workgroups
Terrestrial Workgroup Approach
Define assessment questions (probability and magnitude of effects).
Develop conceptual model (exposure and effects).
Identify major variables that influence effects to nontarget species.
Define distribution for these variables or how to estimate them.
Construct models and perform sensitivity analysis.
Identify data needed to support models.
Develop risk assessment process incorporating the models.
Define additional developmental work and validation requirements.
Aquatic Workgroup Approach
Life table and population models
Intraspecific variability in sensitivity
Interspecific variability in sensitivity
Sensitivity distribution subsets, resampling
Sediment toxicity/Equilibrium partitioning
|Formation of WOK||December 1996|
|Formation of ECOFRAM and Initial Outreach Workshop||June 1997|
|Consultation with SAP||September 1997|
|Presentation of Interim Progress at Professional Society Meetings||Fall/Winter 1997|
|ECOFRAM Reports||Spring 1998|
|Peer Review Workshop||Fall 1998|
|SAP Review of Proposed Ecological Risk Assessment Improvements||Winter 1998|
|OPP Implements Use of New Tools and Processes||Spring 1999|