Tyler Linton is principal research scientist at the Great Lakes Environmental Center, Inc. (GLEC) where he manages, develops and conducts applied water quality studies and projects, emphasizing aquatic toxicology and ecological effects assessment and evaluation. He also develops National ambient water quality criteria for the protection of aquatic life; prepares technical guidance and conducts analyses to support of water quality standards development and implementation; derives site-specific water quality criteria; and conducts ecological effects assessments and evaluations of toxics on aquatic and aquatic-dependent wildlife. His research has contributed to the development of methods for bioassessment-based benchmarks for iron, new estimation tools and approaches for assessing effects of chemicals on sensitive aquatic and aquatic-dependent species, and design of novel field studies to characterize fate and effects of pollutants and nutrients in receiving streams. He has published on his research in the areas of chemical toxicity on both freshwater and saltwater organisms with an emphasis on water quality factors affecting toxicity; the physiological costs and consequences to coldwater fish living in a warmer and more polluted environment; site-specific water quality criteria development for ammonia, copper and selenium; influence of water hardness and sulfate on the acute toxicity of chloride to sensitive freshwater invertebrates; and bioaccumulation of arsenic and selenium in freshwater aquatic systems. He has a passion for pretty much any outdoor activity, a good book, good food and drink, and travel.