Fate and effects of nanomaterials
Chairs: Louise Stevenson and Jaron Bozich

Description: Nanomaterials (NMs) have a wide range of applications and are rapidly increasing in usage. There is growing concern about the potential hazards of NMs, partially due to their increased release and potential for negative impacts in the environment. This session will address the environmental fate as well as biological effects of NMs. Examples of topics include: NMs effect assessment ranging from the subcellular to population level, modeling NMs in the environment and relevance of risk assessments, new methods for synthesizing and characterizing NMs, and advancements in nanometrology such as FFF, sp-ICP-MS, etc.

Molecular and genetic ecotoxicology
Chairs: L. Cody Smith and Elias Oziolor
Description: Molecular and genetic ecotoxicology focuses on the effects of chemicals on organisms at the level of changes in gene expression, protein activities, and other endpoints at a subcellular level. In this session we encourage abstracts from a range of topics including the mechanistic interactions of chemicals with molecular components (DNA damage, biotransformation, pathway induction) as well as population-level effects of contaminants (changes in genetic variability, mutation rate, trans-generational and evolutionary responses). Examples of appropriate topics include: Focused molecular experiments with a toxicological focus, -omics tools, bioinformatics, epigenetics, and biomarkers development and analysis.

Aquatic ecotoxicology
Chairs: Alex MacLeod, David Dreier, and Adric Olson

Description: Aquatic ecotoxicology focuses on the effects of chemicals as well as other abiotic stressors on aquatic organisms. This includes the impacts of a multitude of environmental stressors that include ammonia, metals, legacy organics, PAHs, and chemicals of emerging concern such as pharmaceuticals, personal care products, flame retardants, and perfluorinated acid aldehydes. Examples of appropriate topics include: exposure and ecological effects of chemicals on aquatic organisms, laboratory-based toxicity studies, fate and transport of chemicals in aquatic environment, and large-scale environmental events such as algal blooms.

Terrestrial ecotoxicology
Chairs: Sara Nason and Liz Miller
Description: Terrestrial ecotoxicology focuses on the effects of chemicals as well as other abiotic stressors on terrestrial organisms. This session will focus on the unique considerations of exposure and toxicological studies required for organisms in terrestrial environments. This session will highlight ecologically relevant field and laboratory studies, as well as modeling approaches that aim to improve our understanding of direct and indirect chemical effects to wildlife species such as birds, amphibians, plants and mammals. Examples of appropriate topics include: exposure and ecological effects of chemicals in terrestrial biota and soil, fate and transport of chemicals in terrestrial environment, soil toxicity, and impacts/assessments of agricultural chemicals.

Environmental analytical chemistry
Chairs: Bekah Burkett and Katie Albanese
Description: Acquiring and interpreting high-quality chemical data is crucial to enhancing our understanding of environmental pollution. This session will highlight analytical chemistry research related to more accurately and precisely characterizing contaminants in the environment. Topics in this session will include: environmental fate of pollutants, chemical analysis of pollutants in air, water, sediment, and biota, development of new analytical methods, and improvement of existing methods for analysis of pollutants in all environmental compartments.

Ecological Modelling and Risk Assessment
Chair: Dragan Jevtić
Description: A number of approaches have been recently developed to reduce the uncertainty associated with contamination in soils, sediments and aquatic environments. The application of these advances in science and modeling in aquatic and terrestrial environments are contributing to improved environmental policy, pollution prevention, ecosystem management goals, discharge objectives, remediation goals and criteria development in regulatory programs. This session will review advances in science related to environmental stressors in the context of risk assessment and regulatory initiatives. Additional topics include: development and use of AOPs, site-specific case studies, and issues in environmental management. Topics in this session will also relate to environmental modeling (empirical, conceptual, and process-based) and should focus on their relevance in assessing toxicants as well as other environmental stressors.

Public health and epidemiology
Chairs: Blair Paulik and Austin Gray
Description: Public health focuses on the preventions of disease and the promotion health to prolong life among the population. Public health generally focuses on population-level effects through assessment and monitoring of health in a community to identify problems. Environmental health, a branch of public health, focuses on factors in the natural and built environment that might affect human health. This session will highlight public health concerns related to contaminant exposure, environmental degradation, urbanization, impacts of climate change, human health and epidemiological studies in relation to environmental contaminants, global transport processes, and public perception of environmental risks.

Ecological stressors
Chairs: Tomica Mišljenović and Felipe Sanchez
Description: Plants and animals are exposed to a wide variety of natural ecological stressors, including climate change, availability of food and water, and changing dynamics of predator-prey interactions. While organisms can adapt and evolve to meet some of these challenges, additional stressors such as anthropogenic influences and increased pollutant levels can hinder the natural response to ecological stressors. In this session, we will focus on characterizing the interactions between ecological and anthropogenic stressors. We encourage studies with an ecological focus as well as those with more environmental toxicology/chemistry focus and welcome presentations looking at various types of stressors in the context of evolution and adaptation responses at the population level.