The SEDAG Steering Committee is pleased to announce five proposed half-day sessions for the SETAC meeting in Salt Lake City Utah November 1-5, 2015 associated with the SEDAG:
1. Design and Use of Spiked Sediment Toxicity Tests to Improve Environmental Management Decision Making.
2. The Continuing Evolution of Sediment Toxicity Methods and Data Interpretation.
3. Site Assessments of Contaminated Sediment.
4. Risk Management of Sediments.
5. Groundwater-to-Surface Water Interface (GSI) Investigations for Sediment Characterization and Ecological Risk Assessment.
Please see the summary below for a description of each of these proposed sessions.
As members of the SEDAG, we are contacting you in order to recruit individuals that have an interest in participating in these sessions. If you have a topic in mind that you would like to present as either a platform or poster presentation in these sessions, we encouraged you to submit an abstract through the online submission site by the close for open submissions on May 27, 2015 (http://slc.setac.org/program/scientific-program/abstract-submission/). In advance of your submission, please let the session chairs know if you would like to discuss a potential topic to be included in the session.
Please note the following regarding the sessions and submission of abstracts:
1. The sessions are considered conditional until the abstract review committee meets (June 22-25) to review abstracts and create the final program.
2. All abstracts for the sessions must be submitted through the online submission site preferably prior to May 27 for possible inclusion in a session. A non-refundable fee will be charged for any abstract submitted between May 27 and June 10. No abstracts will be accepted after June 10. Registration for the meeting opens on June 29.
3. This invitation to submit an abstract to a session does not guarantee acceptance or placement in the session. In addition, recruited presenters must register for the meeting, pay applicable registration fees and attend the meeting in order to present.
Please let us know if you have any questions regarding these sessions.
Members of the SEDAG Steering Committee
Proposed session associated with the SETAC Sediment Advisory Group for SETAC North America in Salt Lake City, Utah on Nov 1 to 5, 2015
1. Design and Use of Spiked Sediment Toxicity Tests to Improve Environmental Management Decision Making. Sediments play a key role in determining fate and effects of most environmental contaminants. Laboratory toxicity tests with spiked sediments are used to investigate these processes and inform decisions for managing the environmental risk from both marine and freshwater systems. Researchers attracted to this session will present advancements in the design and use of spiked sediment toxicity testing, as well as results of studies that improve our understanding of the effects of specific contaminants or geochemical factors on aquatic life. Presentations will include: sediment spiking methods and exposure characterization, use of results for remedial decision making, assessing the influence of mixtures and confounding factors, and application of spiked sediment tests to assess ecological risks from “Contaminants of Emerging Concern” (e.g., pesticides, pharmaceuticals, and algal toxins) and those associated with more historical toxicants (e.g., metals, PAHs). Chairs: Steve Bay, Southern California Coastal Water Research Project (Steveb@sccwrp.org, 714-755-3204) and Lisa Taylor/Environment Canada (Lisa.Taylor@ec.gc.ca, 613-991-4062)
2. The Continuing Evolution of Sediment Toxicity methods and Data Interpretation. Sediment toxicity laboratory methods have undergone refinement and evolution over the course of the last few decades. These methods were initially developed by multiple organizations with varying objectives making standardization of the methods a challenging endeavor. There are currently a number of acute and chronic sediment toxicity methods as well as methods to assess bioaccumulation of chemicals using both freshwater and marine organisms. Methods have historically been used to assess the toxicity of field-collected sediment samples or the effects of a specific chemical through dosed sediment exposures. Due to the complex nature of these methods, there is a need to refine some of the standard methods to improve the consistency, reproducibility and quality of the results. The general goal of this session will be to present research on the refinement of current methods for conducting laboratory sediment toxicity tests, development of new methodology and discuss challenges in test conduct as well as data interpretation. Potential presentation are as follows: (1) methods for culturing or collecting test organisms, (2) effects of testing variables on organism performance, (3) results of inter-laboratory testing with a focus on chronic methodology using midge, (4) evaluation of toxicity identification evaluation data (5) alternate taxa or alternate toxicity endpoints (6) challenges in analyzing sediments for chemical specific concentrations and (7) interpretation and use of test results from a regulatory standpoint. Chairs: Christian Picard (Smithers Viscient, Wareham MA, firstname.lastname@example.org, 508-295-2550), Chris Ingersoll (USGS, Columbia MO, email@example.com, 573-876-1819) and Curtis Eickhoff (Maxxam Analytics , Burnaby, BC, CEickhoff@maxxam.ca, 604-638-5033)
3. Bioaccumulation in Management and Regulation. The purpose of this session is to feature new scientific knowledge in the area of bioaccumulation that can improve the management and regulation of environmental contaminants. The session will present new bioaccumulation studies, as well as applications of existing knowledge with the purpose of improving environmental management and regulation. This session has been designed to present research that advances the science of bioaccumulation or applies bioaccumulation science and models to improve management and regulation of human health and ecological risks from water and sediment contaminants. Chairs: Doris Vidal-Dorsch (firstname.lastname@example.org) and Frank Gobas (email@example.com).
4. Risk Management of Sediments. This session is intended to bring together presentations about how advances in risk, sustainability, and remediation tools have been or can be integrated into management decisions at contaminated sediment sites. Recent guidance documents describe sophisticated sediment assessment and remediation techniques, including sustainable approaches, but provide little or no specificity on how they can be incorporated into remedial action objectives (RAOs) and remediation goals (RGs). Sophisticated assessment results may be difficult to apply quantitatively, and back-calculated risk-based clean-up goals are often unrealistically low, not attainable, or not sustainable. There are few formal sediment quality standards, and screening levels do not make appropriate risk management objectives. Therefore, sediment management decisions are typically site-specific and vary widely among sites. This session kicks off a new SETAC Sediment Advisory Group (SEDAG) work group that will address the integration of recent advances in risk, sustainability, and remediation tools into risk management decision making at sediment sites. Topics of interest include development of RAOs; calculation of RGs using human health risk models, ecological risk food chain models, bioassay/sediment toxicity dose-response information, and non-bulk sediment endpoints (such as pore water); sediment remediation technologies such as conventional tools (removal, capping), innovative technologies/pilot studies (such as in situ stabilization), and combined approaches; development, implementation, and advances in remedy effectiveness monitoring; risk communication and stakeholder engagement; and regulatory trends and precedents in sediment management. Chair: Tama Sorell, firstname.lastname@example.org)
5. Groundwater-to-Surface Water Interface (GSI) Investigations for Sediment Characterization and Ecological Risk Assessment. For contaminated sites adjacent to water bodies, the environmental impact of site-related contaminant releases to aquatic habitats, including contaminated groundwater to surface water discharges, have become key assessment components of site investigations. Consequently, regulatory attention to groundwater-to-surface water interface (GSI) investigations, and related influences on ecological risks, has increased significantly in recent years. While the most common focus for GSI investigations is shallow sediment pore water collection for transport verification and exposure estimation/risk assessment, GSI studies also require a keen understanding of the entire transport pathway and a refined conceptual site model. Therefore, GSI investigations are interdisciplinary endeavors that require an integration of a variety of technical expertise (for example, hydrogeology, analytical chemistry, ecotoxicology, and unique sampling techniques). This session will offer an opportunity to display: the latest pore water sampling techniques; GSI transport pathway analyses; the integration of GSI data into ecological risk assessments; and/or the use of complimentary investigation components that enhance GSI understanding (for example, benthic community assessments, exposure estimates, hyporheic profiling). This session will also be a venue to review investigation case studies and experiences and gain insight into regulatory opinions on GSI investigations and related studies for use in site investigations. Chairs: Dan Lavoie/CH2M HILL (Daniel.Lavoie@CH2M.com, 202-265-2906) and Tim Canfield/USEPA (Canfield.Tim@epa.gov, 580-436-8535)