Formerly known as the Aquatic Toxicity Workshop (ATW), CEW is Canada’s predominant annual meeting in the field of ecological toxicology and related disciplines.  It provides the opportunity to share information on current and emerging topics of regional, national and international importance related to contaminants in ecosystems, both aquatic and terrestrial. Participants include students, academics, government scientists and regulators, environmental consultants and industry representatives. For more information about the CEW, see About.

New Graduate Student Advisor to CEW Board of Directors Needed!!!

If you’re a graduate student and interested in getting more involved in the organization of CEW, consider applying for the Graduate Student Advisor position. Greater detail on the position can be found from the link below.

Description of CEW Graduate Student Advisor Position

Get ready!

Next year, CEW 2017 is coming to the Delta Hotel in Guelph, Ontario on October 1 – 4, 2017!

Guelph is located in the heart of Ontario’s Great Lakes region. With increasing frequency, news describing environmental problems in the Great Lakes basin appears in regional and national newswires. The current state of the Great Lakes reflects the cumulative effects of multiple, and often interacting, stressors whose origins are both terrestrial and aquatic. The theme for CEW 2017, “From Land to Lakes: Integrative Ecotoxicology in the Great Lakes Basin and Beyond,” embodies the need for integrative thinking and plays directly into the expanded purview of the CEW by recognizing the intimate linkage between activities on the landscape and responses in aquatic ecosystems; and that addressing these issues effectively will demand creative, integrative and cooperative science, policy and management approaches.

Calls for session topics and chairs, abstract submission and registration will follow in the coming months.

Short Courses for CEW Guelph 2017

The CEW 2017 Short Course Committee will be soliciting proposals for half and full day course in early 2017. If you need more information or have questions at this time, please contact Mark Hanson at:


A big thank you to our 2016 sponsors!

CEW 2016 Abstract Book