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.

As part of CEW, the following short courses are being offered to the general public. These courses are intended to help regulators, consultants and researchers supplement their knowledge and practice in the field of risk assessment and investigation. The courses were developed to help develop the following areas:

  • Report writing
  • Conceptual Site Model Development
  • Food web modelling
  • Holistic Risk Assessment for Indigenous community engagement

Further information is located on the CEW website. The workshops are being held in a virtual (webinar format) through the conference platform Pheedloop.

Short Courses | Canadian Ecotoxicity Workshop (

Canadian Ecotoxicity Workshop 2021 – Halifax, Nova Scotia – October 3, 2021 (